Product Name: Photo Switch Input Voltage: DC 12V Max Load Current: 10 A Body Size: Approximately 4.3 cm x 4.2 cm x 3.5 cm This light sensor switch automatically turns off when there is light and turns on when it is dark, requiring no manual operation. It features waterproof construction for reliable outdoor use. The sensor detects ambient light levels and controls the switch accordingly. Compatible with LED, fluorescent, incandescent lights, exhaust fans, and other electrical loads. Ideal for energy-saving applications by preventing lights from being left on accidentally. Suitable for use in street lighting, schools, factories, boats, and other outdoor or damp environments. Wiring Instructions: Connect the black wire and white wire to the power supply. Connect the red wire and white wire to the load (such as a light). Incorrect wiring may prevent proper operation. Ensure correct connections before use. The switch can be mounted in any orientation, but ensure the sensor is exposed to ambient light for proper detection. Color: White + Blue Material: Plastic + Metal Package Contents: 1 x Switch Note: The actual color may vary slightly due to lighting and display differences. Measurement tolerance is +/- 1-3 cm.