BLOG

Apa itu Cahaya Hantu

Horace Dia

Terakhir diperbarui: 26 Desember 2023

Apa itu Cahaya Hantu

Lampu hantu adalah istilah untuk menggambarkan satu lampu yang dibiarkan menyala di atas panggung saat teater tidak digunakan. Lampu hantu memberikan tindakan pengamanan dengan mencegah kecelakaan dan cedera di teater yang gelap dan kosong. Tradisi lampu hantu berakar pada kepercayaan bahwa teater dihuni oleh hantu, dan membiarkan lampu di atas panggung dipercaya dapat mengusir roh-roh tersebut. Hal ini juga dipandang sebagai simbol kepedulian dan rasa hormat dalam komunitas teater, yang menandakan bahwa bahkan selama masa istirahat, personel teater saling menjaga satu sama lain. Lampu hantu biasanya merupakan solusi berbiaya rendah untuk menjaga agar panggung tetap diterangi secara minimal selama waktu tidak ada pertunjukan, untuk memastikan keamanan mereka yang mungkin memasuki teater.

Mungkin Anda Tertarik Dengan

  • Ceiling-mounted PIR occupancy sensor with dry-contact relay output
  • 12/24VDC or 12/24VAC low-voltage supply
  • COM, NO, and NC isolated relay contacts for EMS, HVAC, and building control inputs
RZ048 recessed ceiling microwave motion sensor product image
  • Low-voltage DC recessed ceiling-mounted microwave motion sensor switch
  • 12 VDC / 24 VDC input with 10-30 VDC range
  • 10A max work current with adjustable time delay, Lux threshold, and sensitivity
RZ048 recessed ceiling microwave motion sensor product image
  • Higher-load recessed ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 10A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
RZ048 recessed ceiling microwave motion sensor product image
  • Recessed ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 5A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
  • Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 220V power
  • 3A maximum working current with 660W rated load
  • LUX button controls light-sensor ON/OFF and user-set dimming brightness
  • Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 110V power
  • 3A maximum working current with 330W rated load
  • LUX button controls light-sensor ON/OFF and user-set dimming brightness
RZ047 ceiling mounted microwave motion sensor switch
  • Low-voltage DC ceiling-mounted microwave motion sensor switch
  • 12 VDC / 24 VDC input with 10-30 VDC range
  • 10A max work current with adjustable time delay, Lux threshold, and sensitivity
RZ047 ceiling mounted microwave motion sensor switch
  • Higher-load ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 10A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
RZ047 ceiling mounted microwave motion sensor switch
  • Ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 5A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
RZ038 recessed ceiling PIR motion sensor top and side view
  • Low-voltage DC recessed ceiling mount PIR motion sensor switch
  • 12 VDC / 24 VDC input with 10-30 VDC range
  • Max work current 10A with adjustable time delay, Lux threshold, and sensitivity
RZ038 recessed ceiling PIR motion sensor front view
  • Higher-load recessed ceiling mount PIR motion sensor switch
  • 100-265 VAC line-voltage input, 10A model
  • 360-degree detection with adjustable time delay, Lux threshold, and sensitivity
RZ038 recessed ceiling PIR motion sensor front view
  • Recessed ceiling mount PIR motion sensor switch
  • 100-265 VAC line-voltage input, 5A model
  • 360-degree detection with adjustable time delay, Lux threshold, and sensitivity
RZ040 wireless switch and receiver kit
  • Wireless switch and receiver kit for indoor ON/OFF lighting control
  • 100-230VAC, 50/60Hz receiver with 5A rated current
  • CR2032-powered wireless switch with 2.4GHz communication
  • Kediaman (Auto-ON/Auto-OFF)
  • 12–24V DC (10–30VDC), hingga 10A
  • Cakupan 360°, diameter 8–12 m
  • Penundaan waktu 15 s–30 menit
  • Sensor cahaya Mati/15/25/35 Lux
  • Sensitivitas Tinggi/Rendah
  • Mode hunian Nyala Otomatis/Mati Otomatis
  • 100–265V AC, 10A (netral diperlukan)
  • Cakupan 360°; diameter deteksi 8–12 m
  • Penundaan waktu 15 s–30 mnt; Lux MATI/15/25/35; Sensitivitas Tinggi/Rendah
  • Mode hunian Nyala Otomatis/Mati Otomatis
  • 100–265V AC, 5A (netral diperlukan)
  • Cakupan 360°; diameter deteksi 8–12 m
  • Penundaan waktu 15 s–30 mnt; Lux MATI/15/25/35; Sensitivitas Tinggi/Rendah
  • 100V-230VAC
  • Jarak Transmisi: hingga 20m
  • Sensor gerak nirkabel
  • Kontrol terhubung langsung
  • Tegangan: 2x Baterai AAA / 5V DC (Micro USB)
  • Mode Siang/Malam
  • Penundaan waktu: 15 menit, 30 menit, 1 jam (default), 2 jam

Pertanyaan yang Sering Diajukan

Apa Asal Mula Cahaya Hantu

Asal usul cahaya hantu tidak terdokumentasi dengan baik, tetapi ada beberapa teori seputar permulaannya. Menurut pakar teater James Fisher dalam bukunya Historical Dictionary of American Theater: Beginnings, istilah "cahaya hantu" berasal dari era teater dengan penerangan gas, di mana lampu gas yang remang-remang digunakan untuk mengurangi tekanan pada katup gas.

Tinggalkan komentar

Indonesian