Automatic Light Control Sensor DC 12V 48V Dusk To Dawn Light Photocell Switch Descriptions: Brand New & High Quality The internal environment with automatic illumination detection circuit, shut down during the day and open during the night automatically. Saving energy, long life, safe and reliable. Using three-wire system, compatible with resistance. Control of the lighting time according to the illumination value of the environment automatically. Suitable for the LED lighting and outdoor monitoring, advertising gallery, garden lights and other automatic switching lights control. Type: Photocell Light Switch Main Material: Plastic  Color & Size: as per picture shows Voltage: DC 8-50V Working Temperature:-25~70°C Related Humidity: 99%RH Package Includes: 1 * Light Sensor Switch