1、Built-in light sensor makes this switch automatically control ON/OFF of light, turn off the light at daytime while turn on at night. 2、With this switch, it will offer you maximum convenience at night and ensure less power consumption. 3、Widely used - It can be used with porch lights, garden lights, street lights, passage lights, doorway lights, etc. 4、Wide voltage range for stable characteristics, anti-interference and lightning resistance circuit. 5、Easy to install. Features: Built-in light sensor makes this switch automatically control ON/OFF of light, turn off the light at daytime while turn on at night. With this switch, it will offer you maximum convenience at night and ensure less power consumption. Widely used - It can be used with porch lights, garden lights, street lights, passage lights, doorway lights, etc. Wide voltage range for stable characteristics, anti-interference and lightning resistance circuit. Easy to install. Specification: (Optional)Current: AC 12V / 24V / 110V / 220V Product name: light control switch Load voltage: 10A Load Power: 2200W Delay off time: 0.1s Frequency: 50-60hz Product net weight: Approx. 50g Induction principle: light control Induction Range: 10M Product function: Turn on the lights automatically in the dark, auto turn off the lights in daytime   Package list: 1 * Light Control Switch Note: 1. Please allow slight error due to manual measurement. 2. Different monitor colors may be different. Thanks for your kind understanding. Precautions: 1. Do not install this switch in a particularly dark place between chalks or where it is directly exposed by normally closed lights. 2. Automatic switch red line black line to power supply, white line to load.