Builtronics Quick Sense Light Sensor Switch: 220 Volt Auto Day/Night On-Off Photocell, Ldr Sensor Switch For Lighting Quick Sense Day/Night Photocell Switch senses in Real-time(quickly senses) change in Ambient Light. This 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 And All Other Kinds Of Lamps. Connection Wiring:- Brown : Phase, Blue : Neutral, Red : Load, Specifications:- Operating Volt: Ac 220-250V, 50Hz-60Hz. Rated Current: 6 Amp Ambient Light: 5-15 Lux Working Temp: -20~+40 DegC Working Humidity:- 93% Rh.