{"id":12858,"date":"2023-08-01T02:22:43","date_gmt":"2023-08-01T02:22:43","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=12858"},"modified":"2023-12-26T08:35:57","modified_gmt":"2023-12-26T08:35:57","slug":"what-is-cosine-law","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/ro\/glosar\/ce-este-legea-cosinusului","title":{"rendered":"Ce este legea cosinusului"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-what-is-cosine-law\">Ce este legea cosinusului<\/h2><p>Legea cosinusului, cunoscut\u0103 \u0219i sub numele de legea cosinusului lui Lambert sau legea emisiei cosinusului, este un principiu fundamental \u00een industria iluminatului. Aceasta afirm\u0103 c\u0103 intensitatea radiant\u0103 de pe o suprafa\u021b\u0103 ideal\u0103 cu reflexie difuz\u0103 este direct propor\u021bional\u0103 cu cosinusul unghiului dintre direc\u021bia luminii incidente \u0219i normala la suprafa\u021b\u0103. Aceast\u0103 lege, numit\u0103 dup\u0103 Johann Heinrich Lambert, este studiat\u0103 \u00een optic\u0103 \u0219i joac\u0103 un rol crucial \u00een \u00een\u021belegerea modului \u00een care lumina este distribuit\u0103 \u0219i a modului \u00een care aceasta afecteaz\u0103 iluminarea unei suprafe\u021be.<\/p><p>Legea cosinusului de iluminare este utilizat\u0103 pentru a calcula iluminarea (sau iradierea) pe o suprafa\u021b\u0103 pe baza unghiului de inciden\u021b\u0103. Aceasta ofer\u0103 o rela\u021bie matematic\u0103 care determin\u0103 cantitatea de lumin\u0103 care cade pe o suprafa\u021b\u0103, lu\u00e2nd \u00een considerare unghiul sub care lumina love\u0219te suprafa\u021ba. Prin optimizarea plas\u0103rii \u0219i direc\u021biei surselor de lumin\u0103, proiectan\u021bii \u0219i inginerii de iluminat pot ob\u021bine nivelurile de iluminare \u0219i uniformitatea dorite pe o suprafa\u021b\u0103.<\/p><div class=\"insert_product_cards_outer_wrapper\"><h3>Poate sunte\u021bi interesat de<\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz037-dry\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz048-12v-24v\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz048-10a\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz048-5a\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz037-dim-220v\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz037-dim-110v\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz047-12v-24v\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz047-10a\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz047-5a\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz038-12v-24v\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz038-10a\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz038-5a\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/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\/ro\/produse\/rz040\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/rz037-12v-24v\">Senzor de mi\u0219care PIR pentru montaj pe tavan RZ037 12V\/24V DC<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Prezen\u021b\u0103 (Auto-ON\/Auto-OFF)<\/li><li>12\u201324V DC (10\u201330VDC), p\u00e2n\u0103 la 10A<\/li><li>Acoperire de 360\u00b0, diametru de 8\u201312 m<\/li><li>\u00cent\u00e2rziere de timp 15 s\u201330 min<\/li><li>Senzor de lumin\u0103 Off\/15\/25\/35 Lux<\/li><li>Sensibilitate Mare\/Mic\u0103<\/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\/ro\/produse\/rz037-12v-24v\">Detalii produs <\/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\">Cump\u0103r\u0103 acum <\/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\/ro\/produse\/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\/ro\/produse\/rz037-10a\">Senzor de prezen\u021b\u0103 cu montare pe tavan \u0219i tensiune de linie (RZ037-10A)<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Modul de ocupare Auto-ON\/Auto-OFF<\/li><li>100\u2013265V AC, 10A (receptor neutru necesar)<\/li><li>Acoperire de 360\u00b0; diametru de detectare de 8\u201312 m<\/li><li>\u00cent\u00e2rziere de timp 15 s\u201330 min; Lux NEOPTRIT, 15\/25\/35; Sensibilitate Ridicat\u0103\/Jos<\/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\/ro\/produse\/rz037-10a\">Detalii produs <\/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\">Cump\u0103r\u0103 acum <\/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\/ro\/produse\/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\/ro\/produse\/rz037-5a\">Senzor de prezen\u021b\u0103 cu montare pe tavan \u0219i tensiune de linie (RZ037-5A)<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Modul de ocupare Auto-ON\/Auto-OFF<\/li><li>100\u2013265V AC, 5A (receptor neutru necesar)<\/li><li>Acoperire de 360\u00b0; diametru de detectare de 8\u201312 m<\/li><li>\u00cent\u00e2rziere de timp 15 s\u201330 min; Lux NEOPTRIT, 15\/25\/35; Sensibilitate Ridicat\u0103\/Jos<\/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\/ro\/produse\/rz037-5a\">Detalii produs <\/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\">Cump\u0103r\u0103 acum <\/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\/ro\/produse\/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\/ro\/produse\/rz039\">Kit senzor de mi\u0219care wireless<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>100V-230VAC<\/li><li>Distan\u021ba de transmisie: p\u00e2n\u0103 la 20m<\/li><li>Senzor de mi\u0219care wireless<\/li><li>Control cable<\/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\/ro\/produse\/rz039\">Detalii produs <\/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\/ro\/produse\/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\/ro\/produse\/rz050-dp\">Senzor de mi\u0219care pentru aer condi\u021bionat Dual Power RZ050-DP<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Tensiune: 2x baterii AAA \/ 5V DC (Micro USB)<\/li><li>Mod zi\/noapte<\/li><li>\u00cent\u00e2rziere: 15min, 30min, 1h (implicit), 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\/ro\/produse\/rz050-dp\">Detalii produs <\/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\">Cump\u0103r\u0103 acum <\/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\/ro\/produse\/adaptor-de-alimentare-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\/ro\/produse\/adaptor-de-alimentare-usb-ue\">Adaptor de alimentare USB UE<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Adaptor de alimentare cu muf\u0103 UE<\/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\/ro\/produse\/adaptor-de-alimentare-usb-ue\">Detalii produs <\/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\">Cump\u0103r\u0103 acum <\/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\/ro\/produse\/adaptor-de-alimentare-usb-uk\"><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\/ro\/produse\/adaptor-de-alimentare-usb-uk\">Adaptor de alimentare USB pentru Marea Britanie<\/a><\/h4><\/div><div class = \"insert_product_card_bullet_points_wrapper\"><div class = \"insert_product_card_bullet_points\"><ul><li>Adaptor de alimentare cu muf\u0103 pentru Marea Britanie<\/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\/ro\/produse\/adaptor-de-alimentare-usb-uk\">Detalii produs <\/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\">Cump\u0103r\u0103 acum <\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><p>Legea cosinusului de iluminare este un concept important \u00een industria de iluminat, deoarece ajut\u0103 la proiectarea \u0219i implementarea sistemelor de iluminat. Aceasta permite calcularea ilumin\u0103rii pe baza unghiului de inciden\u021b\u0103, permi\u021b\u00e2nd optimizarea condi\u021biilor de iluminare pentru diverse aplica\u021bii. \u00cen\u021belegerea legii cosinusului este crucial\u0103 pentru ob\u021binerea unor solu\u021bii de iluminat eficiente \u0219i eficace.<\/p><div class=\"insert_portfolio_outer_wrapper\"><h3>Inspir\u0103-te din portofoliile senzorilor de mi\u0219care Rayzeek.<\/h3><p>Nu g\u0103se\u0219ti ceea ce vrei? Nu v\u0103 face\u021bi griji. Exist\u0103 \u00eentotdeauna modalit\u0103\u021bi alternative de a v\u0103 rezolva problemele. Poate c\u0103 unul dintre portofoliile noastre v\u0103 poate ajuta.<\/p><div class = \"insert_portfolio_buttons\"><div class = \"insert_portfolio_button_wrapper\"><div><a href = \"https:\/\/www.rayzeek.com\/ro\/categoria-de-produse\/senzori-de-miscare\"><p>Senzori de mi\u0219care PIR<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/ro\/intrerupatoare-cu-senzor-de-miscare\"><p>\u00centrerup\u0103toare cu senzor de mi\u0219care<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/ro\/senzori-de-ocupare-si-de-vacantare\"><p>Senzori de prezen\u021b\u0103<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/ro\/produse\/rz050\"><p>Senzor de mi\u0219care pentru aparatul de aer condi\u021bionat<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/ro\/categoria-de-produse\/motion-sensor-light-strip\"><p>Benzi luminoase cu senzor de mi\u0219care<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/ro\/categoria-de-produse\/dimmer-cu-senzor-dc\"><p>Senzori de mi\u0219care DC de joas\u0103 tensiune\/Dimmers<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/ro\/categoria-de-produse\/senzori-de-miscare-fara-fir\"><p>Kituri de senzori de mi\u0219care f\u0103r\u0103 fir<\/p><\/a><\/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\">\u00centreb\u0103ri frecvente<\/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-what-is-the-difference-between-sine-and-cosine\">Care este diferen\u021ba dintre sinus \u0219i cosinus<\/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>Sinus \u0219i cosinus, cunoscute \u0219i sub numele de sin(\u03b8) \u0219i cos(\u03b8), sunt func\u021bii matematice care descriu propor\u021biile laturilor unui triunghi dreptunghic. Mai exact, sin(\u03b8) reprezint\u0103 raportul dintre lungimea laturii opuse unghiului \u03b8 \u0219i lungimea ipotenuzei, \u00een timp ce cos(\u03b8) reprezint\u0103 raportul dintre lungimea laturii adiacente unghiului \u03b8 \u0219i lungimea ipotenuzei.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Legea cosinusului, cunoscut\u0103 \u0219i ca legea cosinusului lui Lambert sau legea emisiei cosinusului, este un principiu fundamental \u00een industria iluminatului.<\/p>","protected":false},"author":4,"featured_media":12863,"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\": \"illuminance\", \"idxall\": 0, \"keywordtitlesimi\": 0.9325839877128601, \"keywordslugsimi\": 0.9325839877128601, \"paratitlesimi\": 0.736487865447998, \"paraslugsimi\": 0.736487865447998, \"slug\": 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