Light Sensor Switch 12V Stable LDR Photoresistor Relay Module Light Sensor Controller Switch

【PHOTORESISTOR SENSING】: This Light Sensor Switch uses photoresistor to sense intensity of light and good quality relay can directly control load, which can be great helper to you. 【POTENTIOMETER ADJUSTMENT】: Adjust potentiometer to change sensitivity and set relay start threshold; when it is darker than the threshold, relay is energized; when it is brighter than the threshold, relay is de-energized. 【STABLE PERFORMANCE】: The Photoresistor Light Sensor Switch has 12V power supply input special for relay, designed with 78L05 regulated transistor, more stable and 【EFFECTIVE Optical coupling isolation drive relay can effectively protect chip and ensures a better performance, so you don't have to worry about. 【WIDELY APPLICATION】: The Light Sensor Switch can be widely used for light detection, brightness detection, all kinds of light detection switch, controlling street lamps, and automatic equipment.