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 Function: Automatically turns off when there is light and turns on when it is dark, no manual operation required. This is a waterproof light sensor switch. The sensor detects light levels and controls the ON/OFF state of the switch. Compatible with LED lamps, energy-saving lamps, fluorescent lamps, incandescent lamps, ventilation fans, and other lighting devices. Automatic control helps prevent lights from being left on accidentally, contributing to energy savings. Ideal for use in street lights, schools, factories, and similar applications. Waterproof design allows for use in outdoor environments, vehicles, boats, and other diverse settings. Connect the black wire and white wire to the power supply, and connect the red wire and white wire to the load (such as a light). Incorrect wiring may result in improper operation. Please refer to the product image and wire accordingly. This product can be installed in any orientation, but ensure the sensor is positioned to accurately detect ambient light conditions. Color: White + Blue Material: Plastic + Metal Package Contents: 1 x Switch Note: Other items shown are not included. Note: Lighting and display differences may cause slight variations between the item color in the image and the actual product. Measurement tolerance: +/- 1-3 cm.