{"id":13286,"date":"2023-08-01T03:38:10","date_gmt":"2023-08-01T03:38:10","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=13286"},"modified":"2023-12-26T08:37:29","modified_gmt":"2023-12-26T08:37:29","slug":"what-is-luminance-contrast","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/fr\/glossaire\/quest-ce-que-le-contraste-de-luminance\/","title":{"rendered":"Qu'est-ce que le contraste de luminance ?"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-what-is-luminance-contrast\">Qu'est-ce que le contraste de luminance ?<\/h2><p>Le contraste de luminance est la diff\u00e9rence entre la quantit\u00e9 de lumi\u00e8re r\u00e9fl\u00e9chie par une surface ou un composant et celle r\u00e9fl\u00e9chie par une autre surface ou un autre composant. Il s'agit d'une mesure de la distinction visuelle entre l'objet et son arri\u00e8re-plan. Le contraste de luminance n'est pas la diff\u00e9rence de couleur ou le contraste de couleur, mais plut\u00f4t la diff\u00e9rence dans les propri\u00e9t\u00e9s de r\u00e9flexion de la lumi\u00e8re de chaque couleur.<\/p><p>Le calcul du contraste de luminance peut \u00eatre exprim\u00e9 sous la forme d'un rapport ou d'une fraction, g\u00e9n\u00e9ralement en utilisant les valeurs de luminance de l'objet et de l'arri\u00e8re-plan. La formule de calcul du contraste de luminance est (L1 - L2)\/L1 ou (L2 - L1)\/L1 = | \u0394 L\/L1 |, o\u00f9 L1 et L2 repr\u00e9sentent respectivement les luminances de l'arri\u00e8re-plan et de l'objet. Cette \u00e9quation sp\u00e9cifie la forme du calcul du contraste de luminance.<\/p><div class=\"insert_inquiry_outer_wrapper\"><h3>Vous recherchez des solutions d'\u00e9conomie d'\u00e9nergie activ\u00e9es par le mouvement ?<\/h3><p>Contactez-nous pour des d\u00e9tecteurs de mouvement PIR complets, des produits d'\u00e9conomie d'\u00e9nergie activ\u00e9s par le mouvement, des interrupteurs \u00e0 d\u00e9tecteur de mouvement et des solutions commerciales d'occupation\/occupation.<\/p><div class = \"insert_inquiry_buttons\"><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email\"><div><a href = \"mailto:info@rayzeek.com\"><p>Envoyer un courriel<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email_contact\"><div><a href=\"https:\/\/www.rayzeek.com\/fr\/contact\"><p>Formulaire de contact<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_chat chat_jump\"><div><a href=\"#\"><p>Chat en ligne<\/p><\/a><\/div><\/div><\/div><\/div><p>Le rapport \u0394 L\/L1 dans l'\u00e9quation est connu sous le nom de fraction de Weber, qui d\u00e9crit la plus petite diff\u00e9rence d\u00e9tectable dans la luminance. Il permet de d\u00e9terminer la sensibilit\u00e9 perceptive aux changements de luminosit\u00e9. Dans certains cas, lorsque seules des surfaces r\u00e9fl\u00e9chissantes sont impliqu\u00e9es, le contraste de luminance peut \u00eatre exprim\u00e9 en termes de r\u00e9flectance. La r\u00e9flectance est le rapport entre la lumi\u00e8re r\u00e9fl\u00e9chie par une surface et la lumi\u00e8re incidente qui tombe sur cette surface. La formule de contraste utilisant la r\u00e9flectance est (\u03c11 - \u03c12)\/\u03c11 ou (\u03c12 - \u03c11)\/\u03c11, o\u00f9 \u03c11 et \u03c12 repr\u00e9sentent respectivement les r\u00e9flectances de l'arri\u00e8re-plan et de l'objet. La m\u00e9thode de calcul du contraste \u00e0 l'aide de la r\u00e9flectance n'est valable que pour les surfaces parfaitement diffusantes. Pour les autres surfaces, des facteurs suppl\u00e9mentaires tels que les angles d'incidence et de vue doivent \u00eatre pris en consid\u00e9ration.<\/p><div class=\"insert_product_cards_outer_wrapper\"><h3>Vous \u00eates peut-\u00eatre int\u00e9ress\u00e9 par<\/h3><div class=\"swiper insert_product_cards_wrapper\"><div class=\"swiper-wrapper\"><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-dry\/\"><div class = \"insert_product_card_image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"1080\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg 1080w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-100x100.jpg 100w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-dry\/\">RZ037-DRY Ceiling Mount PIR Occupancy Sensor with Dry Contact Relay<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Ceiling-mounted PIR occupancy sensor with dry-contact relay output<\/li><li>12\/24VDC or 12\/24VAC low-voltage supply<\/li><li>COM, NO, and NC isolated relay contacts for EMS, HVAC, and building control inputs<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-dry\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz048-12v-24v\/\"><div class = \"insert_product_card_image\"><img decoding=\"async\" width=\"1200\" height=\"1200\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ048 recessed ceiling microwave motion sensor product image\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean.jpg 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-100x100.jpg 100w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz048-12v-24v\/\">RZ048 12V\/24V 360-Degree Recessed Ceiling Microwave Motion Sensor Switch<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Low-voltage DC recessed ceiling-mounted microwave motion sensor switch<\/li><li>12 VDC \/ 24 VDC input with 10-30 VDC range<\/li><li>10A max work current with adjustable time delay, Lux threshold, and sensitivity<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz048-12v-24v\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz048-10a\/\"><div class = \"insert_product_card_image\"><img decoding=\"async\" width=\"1200\" height=\"1200\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ048 recessed ceiling microwave motion sensor product image\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean.jpg 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-100x100.jpg 100w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz048-10a\/\">RZ048-10A 360-Degree Recessed Ceiling Microwave Motion Sensor Switch<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Higher-load recessed ceiling-mounted microwave motion sensor switch<\/li><li>100-265 VAC line-voltage input, 10A model<\/li><li>5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz048-10a\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz048-5a\/\"><div class = \"insert_product_card_image\"><img decoding=\"async\" width=\"1200\" height=\"1200\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ048 recessed ceiling microwave motion sensor product image\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean.jpg 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz048-main-clean-100x100.jpg 100w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz048-5a\/\">RZ048-5A 360-Degree Recessed Ceiling Microwave Motion Sensor Switch<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Recessed ceiling-mounted microwave motion sensor switch<\/li><li>100-265 VAC line-voltage input, 5A model<\/li><li>5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz048-5a\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-dim-220v\/\"><div class = \"insert_product_card_image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"1080\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg 1080w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-100x100.jpg 100w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-dim-220v\/\">RZ037-DIM 220V Ceiling Mount PIR Occupancy Sensor Dimmer<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 220V power<\/li><li>3A maximum working current with 660W rated load<\/li><li>LUX button controls light-sensor ON\/OFF and user-set dimming brightness<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-dim-220v\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-dim-110v\/\"><div class = \"insert_product_card_image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"1080\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg 1080w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-100x100.jpg 100w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-dim-110v\/\">RZ037-DIM 110V Ceiling Mount PIR Occupancy Sensor Dimmer<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 110V power<\/li><li>3A maximum working current with 330W rated load<\/li><li>LUX button controls light-sensor ON\/OFF and user-set dimming brightness<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-dim-110v\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz047-12v-24v\/\"><div class = \"insert_product_card_image\"><img decoding=\"async\" width=\"1200\" height=\"1200\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ047 ceiling mounted microwave motion sensor switch\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200.jpg 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-100x100.jpg 100w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz047-12v-24v\/\">RZ047 12V\/24V 360-Degree Ceiling Microwave Motion Sensor Switch<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Low-voltage DC ceiling-mounted microwave motion sensor switch<\/li><li>12 VDC \/ 24 VDC input with 10-30 VDC range<\/li><li>10A max work current with adjustable time delay, Lux threshold, and sensitivity<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz047-12v-24v\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz047-10a\/\"><div class = \"insert_product_card_image\"><img decoding=\"async\" width=\"1200\" height=\"1200\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ047 ceiling mounted microwave motion sensor switch\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200.jpg 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-100x100.jpg 100w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz047-10a\/\">RZ047-10A 360-Degree Ceiling Microwave Motion Sensor Switch<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Higher-load ceiling-mounted microwave motion sensor switch<\/li><li>100-265 VAC line-voltage input, 10A model<\/li><li>5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz047-10a\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz047-5a\/\"><div class = \"insert_product_card_image\"><img decoding=\"async\" width=\"1200\" height=\"1200\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ047 ceiling mounted microwave motion sensor switch\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200.jpg 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz047-main-product-square-1200-100x100.jpg 100w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz047-5a\/\">RZ047-5A 360-Degree Ceiling Microwave Motion Sensor Switch<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Ceiling-mounted microwave motion sensor switch<\/li><li>100-265 VAC line-voltage input, 5A model<\/li><li>5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz047-5a\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz038-12v-24v\/\"><div class = \"insert_product_card_image\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1600\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ038 recessed ceiling PIR motion sensor top and side view\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side.png 1600w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side-300x300.png 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side-1024x1024.png 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side-150x150.png 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side-768x768.png 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side-1536x1536.png 1536w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side-12x12.png 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side-1200x1200.png 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-top-side-100x100.png 100w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz038-12v-24v\/\">RZ038 12V\/24V 360-Degree Recessed Ceiling PIR Motion Sensor Switch<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Low-voltage DC recessed ceiling mount PIR motion sensor switch<\/li><li>12 VDC \/ 24 VDC input with 10-30 VDC range<\/li><li>Max work current 10A with adjustable time delay, Lux threshold, and sensitivity<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz038-12v-24v\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz038-10a\/\"><div class = \"insert_product_card_image\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1600\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ038 recessed ceiling PIR motion sensor front view\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front.png 1600w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-300x300.png 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-1024x1024.png 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-150x150.png 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-768x768.png 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-1536x1536.png 1536w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-12x12.png 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-1200x1200.png 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-100x100.png 100w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz038-10a\/\">RZ038-10A 360-Degree Recessed Ceiling PIR Motion Sensor Switch<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Higher-load recessed ceiling mount PIR motion sensor switch<\/li><li>100-265 VAC line-voltage input, 10A model<\/li><li>360-degree detection with adjustable time delay, Lux threshold, and sensitivity<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz038-10a\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz038-5a\/\"><div class = \"insert_product_card_image\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1600\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ038 recessed ceiling PIR motion sensor front view\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front.png 1600w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-300x300.png 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-1024x1024.png 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-150x150.png 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-768x768.png 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-1536x1536.png 1536w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-12x12.png 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-1200x1200.png 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz038-main-front-100x100.png 100w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz038-5a\/\">RZ038-5A 360-Degree Recessed Ceiling PIR Motion Sensor Switch<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Recessed ceiling mount PIR motion sensor switch<\/li><li>100-265 VAC line-voltage input, 5A model<\/li><li>360-degree detection with adjustable time delay, Lux threshold, and sensitivity<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz038-5a\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz040\/\"><div class = \"insert_product_card_image\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"1200\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz040-main-product-1200.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"RZ040 wireless switch and receiver kit\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz040-main-product-1200.jpg 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz040-main-product-1200-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz040-main-product-1200-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz040-main-product-1200-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz040-main-product-1200-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz040-main-product-1200-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2026\/06\/rz040-main-product-1200-100x100.jpg 100w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz040\/\">RZ040 Wireless Switch and Receiver Kit<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Wireless switch and receiver kit for indoor ON\/OFF lighting control<\/li><li>100-230VAC, 50\/60Hz receiver with 5A rated current<\/li><li>CR2032-powered wireless switch with 2.4GHz communication<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz040\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-12v-24v\/\"><div class = \"insert_product_card_image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"1080\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg 1080w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-100x100.jpg 100w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-12v-24v\/\">D\u00e9tecteur de mouvement PIR pour montage en plafonnier RZ037 12V\/24V DC<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Pr\u00e9sence (Auto-ON\/Auto-OFF)<\/li><li>12\u201324V DC (10\u201330VDC), jusqu\u2019\u00e0 10A<\/li><li>Couverture \u00e0 360\u00b0, diam\u00e8tre de 8\u201312 m<\/li><li>D\u00e9lai d\u2019attente 15 s\u201330 min<\/li><li>Capteur de lumi\u00e8re D\u00e9sactiv\u00e9\/15\/25\/35 Lux<\/li><li>Sensibilit\u00e9 Haute\/Basse<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-12v-24v\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_shop\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/shop.rayzeek.com\/products\/rz037\">Acheter <\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-10a\/\"><div class = \"insert_product_card_image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"1080\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg 1080w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-100x100.jpg 100w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-10a\/\">Capteur de mouvement d'occupation \u00e0 montage en plafonnier, tension secteur (RZ037-10A)<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Mode d'occupation Auto-ON\/Auto-OFF<\/li><li>100\u2013265V AC, 10A (n\u00e9cessite un neutre)<\/li><li>Couverture \u00e0 360\u00b0 ; diam\u00e8tre de d\u00e9tection de 8 \u00e0 12 m<\/li><li>D\u00e9lai d'attente 15 s\u201330 min ; Lux ARR\u00caT\/15\/25\/35 ; Sensibilit\u00e9 Haute\/Basse<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-10a\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_shop\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/shop.rayzeek.com\/products\/rz037\">Acheter <\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-5a\/\"><div class = \"insert_product_card_image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"1080\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view.jpg 1080w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/11\/rz037-front-view-100x100.jpg 100w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-5a\/\">Capteur de pr\u00e9sence \u00e0 montage au plafond, tension de ligne (RZ037-5A)<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Mode d'occupation Auto-ON\/Auto-OFF<\/li><li>100\u2013265V CA, 5A (neutre requis)<\/li><li>Couverture \u00e0 360\u00b0 ; diam\u00e8tre de d\u00e9tection de 8 \u00e0 12 m<\/li><li>D\u00e9lai d'attente 15 s\u201330 min ; Lux ARR\u00caT\/15\/25\/35 ; Sensibilit\u00e9 Haute\/Basse<\/li><\/ul>\r\n <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz037-5a\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_shop\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/shop.rayzeek.com\/products\/rz037\">Acheter <\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz039\/\"><div class = \"insert_product_card_image\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1600\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039.jpg 1600w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039-1536x1536.jpg 1536w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039-1200x1200.jpg 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/08\/rz039-100x100.jpg 100w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz039\/\">Kit de capteur de mouvement sans fil<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>100V-230VAC<\/li><li>Port\u00e9e de transmission : jusqu\u2019\u00e0 20m<\/li><li>Capteur de mouvement sans fil<\/li><li>Contr\u00f4le filaire<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz039\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/rz050-dp\/\"><div class = \"insert_product_card_image\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1600\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp.jpg 1600w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp-300x300.jpg 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp-1024x1024.jpg 1024w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp-150x150.jpg 150w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp-768x768.jpg 768w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp-1536x1536.jpg 1536w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp-12x12.jpg 12w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp-1200x1200.jpg 1200w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/rz050-dp-100x100.jpg 100w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz050-dp\/\">D\u00e9tecteur de mouvement pour climatiseur Dual Power RZ050-DP<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Tension\u00a0: 2\u00a0piles AAA\/5\u00a0V\u00a0CC (micro USB)<\/li><li>Mode jour\/nuit<\/li><li>D\u00e9lai de temporisation : 15min, 30min, 1h (par d\u00e9faut), 2h<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/rz050-dp\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_shop\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/shop.rayzeek.com\/products\/rz050-dp\">Acheter <\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/adaptateur-dalimentation-usb-ue\/\"><div class = \"insert_product_card_image\"><img loading=\"lazy\" decoding=\"async\" width=\"605\" height=\"491\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/eu-power-adaptor.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/eu-power-adaptor.png 605w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/eu-power-adaptor-300x243.png 300w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/eu-power-adaptor-15x12.png 15w\" sizes=\"(max-width: 605px) 100vw, 605px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/adaptateur-dalimentation-usb-ue\/\">Adaptateur secteur USB UE<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Adaptateur secteur \u00e0 prise europ\u00e9enne<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/adaptateur-dalimentation-usb-ue\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_shop\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/shop.rayzeek.com\/products\/usb-power-adapter\">Acheter <\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"swiper-slide\"><div class = \"insert_product_card_inner\"><div class = \"insert_product_card_i\"><a href=\"https:\/\/www.rayzeek.com\/fr\/produits\/adaptateur-secteur-usb-britannique\/\"><div class = \"insert_product_card_image\"><img loading=\"lazy\" decoding=\"async\" width=\"605\" height=\"632\" src=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/uk-power-adaptor.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/uk-power-adaptor.png 605w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/uk-power-adaptor-287x300.png 287w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/uk-power-adaptor-11x12.png 11w, https:\/\/www.rayzeek.com\/wp-content\/uploads\/2025\/04\/uk-power-adaptor-300x313.png 300w\" sizes=\"(max-width: 605px) 100vw, 605px\" \/><\/div><\/a><\/div><div class = \"insert_product_card_t\"><div class = \"insert_product_card_content\"><div class = \"insert_product_card_title\"><h4><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/adaptateur-secteur-usb-britannique\/\">Adaptateur secteur USB britannique<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Adaptateur secteur \u00e0 prise britannique<\/li><\/ul> <\/div><\/div><div class = \"merged_buttons product_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_product\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/www.rayzeek.com\/fr\/produits\/adaptateur-secteur-usb-britannique\/\">D\u00e9tails du produit <\/a><\/div><\/div><\/div><div class = \"merged_buttons amz_merged_wrapper\"><div class = \"insert_product_card_button_wrapper insert_product_shop\"><div class = \"insert_product_card_button\"><a href = \"https:\/\/shop.rayzeek.com\/products\/usb-power-adapter\">Acheter <\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"wp-block-group glossary_faqs\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h2 class=\"wp-block-heading\" id=\"h-frequently-asked-questions\">Questions fr\u00e9quemment pos\u00e9es<\/h2>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-does-luminance-mean-brightness-of-colors\">La luminance signifie-t-elle la luminosit\u00e9 des couleurs ?<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>La luminance est une mesure qui d\u00e9crit la luminosit\u00e9 per\u00e7ue d'une couleur. Elle indique la luminosit\u00e9 d'une couleur lorsqu'elle est r\u00e9fl\u00e9chie par une surface. En outre, la luminance relative est d\u00e9finie comme la luminosit\u00e9 relative d'un point sp\u00e9cifique dans un espace colorim\u00e9trique, le noir \u00e9tant normalis\u00e9 \u00e0 0% et le blanc \u00e0 100%.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-what-is-a-good-luminance\">Qu'est-ce qu'une bonne luminance ?<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Le rapport de luminance recommand\u00e9 entre la zone de travail et les murs est inf\u00e9rieur \u00e0 5:1. Toutefois, des \u00e9tudes r\u00e9centes indiquent que le rapport de luminance entre la zone de travail et le champ de vision normal (zone ambiante = surfaces des murs\/plafonds) devrait \u00eatre de 2:1, avec un \u00e9clairement de 500 lux dans la zone de travail.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-what-color-has-the-highest-luminosity\">Quelle est la couleur la plus lumineuse ?<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Les \u00e9toiles bleues sont g\u00e9n\u00e9ralement les plus lumineuses, tandis que les \u00e9toiles rouges sont les moins lumineuses. Toutefois, les observateurs chevronn\u00e9s peuvent croiser la nuit des \u00e9toiles rouges plus lumineuses que les \u00e9toiles blanches ou bleues.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-what-is-normal-luminance\">Qu'est-ce que la luminance normale ?<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Auparavant, la luminance normale pour des activit\u00e9s normales se situait g\u00e9n\u00e9ralement entre 100 et 300 lux. Toutefois, de nos jours, le niveau de luminosit\u00e9 se situe g\u00e9n\u00e9ralement entre 500 et 1000 lux, en fonction de l'activit\u00e9 sp\u00e9cifique. Dans les cas qui exigent un travail pr\u00e9cis et d\u00e9taill\u00e9, le niveau d'\u00e9clairage peut m\u00eame atteindre 1500 \u00e0 2000 lux.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-what-should-the-maximum-luminance-be\">Quelle doit \u00eatre la luminance maximale ?<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Les formats SDR sont capables d'afficher un niveau de luminance maximal d'environ 100 nits. Toutefois, dans le cas de la technologie HDR, cette valeur augmente consid\u00e9rablement pour atteindre une fourchette de 1 000 \u00e0 10 000 nits. La technologie HDR permet d'obtenir des niveaux de noir plus profonds et des couleurs plus vives et plus satur\u00e9es.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-does-luminance-change-with-distance\">La luminance varie-t-elle avec la distance ?<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>En ce qui concerne la luminance ponctuelle, on a observ\u00e9 une variation d'environ 3% pour chaque augmentation d'un m\u00e8tre de la distance par rapport au point mesur\u00e9. Toutefois, l'influence de la distance sur la luminance de surface \u00e9tait comparativement moins importante que celle de la luminance ponctuelle. Ces r\u00e9sultats de l'\u00e9tude sugg\u00e8rent que les valeurs de luminance fluctuent effectivement en fonction de la distance \u00e0 laquelle elles sont mesur\u00e9es.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Le contraste de luminance est la diff\u00e9rence entre la quantit\u00e9 de lumi\u00e8re r\u00e9fl\u00e9chie par une surface ou un composant et celle r\u00e9fl\u00e9chie par une autre surface ou un autre composant.<\/p>","protected":false},"author":4,"featured_media":12866,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"reflectance\", \"idxall\": 0, \"keywordtitlesimi\": 0.9341383576393127, \"keywordslugsimi\": 0.9341383576393127, \"paratitlesimi\": 0.7555714845657349, \"paraslugsimi\": 0.7555714845657349, \"slug\": \"what-is-reflectance\", \"title\": 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