BUILTRONICS Light Sensor Switch: 220 Volt Auto Day/Night On-Off Photocell, Ldr Sensor Switch For Lighting BUILTRONICS Day/Night Photocell Switch Is A New Energy Saving Device Which Can Turn On Or Turn Off Light Automatically According To Ambient-Light. It Can Control The Load While Working At Night And Can Be Used To control Garden Lights,Outdoor Lights And Street Lights. Use Quick Sense Photocell Switch To Operate Light Automatically in the Day(OFF) & Night(ON). Can Be Used With Street Light, Garden Lights, Incandescent Lamp, Led Lights, Diwali Lights And All Other Kinds Of Lamps. Specifications:- Operating Volt: Ac 220-240V, 50Hz. Rated Current: upto 10 Amp Ambient Light: 5-15 Lux Working Temp: -20~+70 DegC Working Humidity:- 93% Rh.