Please kindly noted that this item is sold by Jundayo from Joybuy marketplace. Origin: Mainland China _x005f_x000D_ Condition: New _x005f_x000D_ product description _x005f_x000D_ This module can be used for light detection and brightness detection. It has a power indicator light (red) and a relay pull-in indicator light (blue). It also has four M3 screw mounting holes, which greatly facilitates installation. _x005f_x000D_ The board can adjust the photosensitivity through a potentiometer. It has a built-in relay and can be used as a variety of brightness detection control switches. It can be used in street lights, etc., to automatically turn on at night and turn off during the day, and other equipment that requires automation. _x005f_x000D_ Model: XH-M131 _x005f_x000D_ Working voltage: 5V12V _x005f_x000D_ Output mode: one way output _x005f_x000D_ Sensor wire length: about 30CM _x005f_x000D_ Size: 53x31x18mm/2.09x1.22x0.71inch _x005f_x000D_ Product weight: 20g _x005f_x000D_ _x005f_x000D_ Included: 1 x Light Control Switch Photoresistor Module Versatile Applications: The automatic light control switch finds extensive applications in areas such as light control, environmental monitoring, and smart homes. Whether it's automating lighting systems, monitoring daylight levels, or integrating with smart home devices, this switch provides a convenient solution. Reliable and Stable: With excellent stability and reliability, the photo resistor relay light detection can sustain continuous operation while maintaining accurate light sensing. Users can rely on its consistent performance over time. Simple and User-Friendly: The photoresistor relay module features straightforward wiring and operation, eliminating the need for complex configuration or programming. It is easy to install and use, making it accessible to users with varying technical abilities. Adjustable Sensitivity Range: The brightness automatic control module offers a wide range of adjustable sensitivity levels, allowing users to customize the detection threshold according to their specific needs. High Sensitivity Detection: The light control switch is equipped with high-quality photosensitive resistors, ensuring high sensitivity to quickly detect changes in ambient light intensity.