ALAMSCN DC 12V Light Control Switch Photoresistor Relay Module XH-M131 Detection Sensor For Car Light Brightness Automatic Control Module (PACK of 2)

Specification: Input Voltage: DC 12V Load capacity: 250V 10A AC / 30V 10A DC. Current: > 100mA RED LED ON: Indicate the Power ON BLUE LED ON: Relay is working Size: 30MM*53MM Module output terminal has three ports: Normally open ( NO ) Common terminal ( COM ) Normally closed ( NC ) Instructions: 1. Connect the input section to 12V DC (note that the positive and negative poles are not reversed), and the power indicator will light up. 2. Connect the output control terminal to a power supply with a maximum voltage of 250V and a maximum current of 10A, and connect the load. 3. When the light-sensitive probe detects the dimming of the light, the switch is automatically closed, the load works, and the blue light  of the work indicator lights up; when the light dims, the relay is disconnected, the load stops working, and the work indicator goes out. 4. If you feel that the photosensitive detection is not sensitive enough, you can adjust the potentiometer yourself with  a screwdriver to increase the sensitivity of the photosensitive detection. Package Included: 2 x Photoelectric Switch Sensor Relay Module XH-M131