NEW 12VDC Stable LDR Photoresistor Relay Module Controler Light.

Feature: \n 1. This switch uses photoresistor to sense intensity of light and good quality relay can directly control load\n2. 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\n3. 12V power supply input special for relay, designed with 78L05 regulated transistor, more stable and reliable\n4. Optical coupling isolation drive relay can effectively protect chip and ensures a better performance\n5. Widely used for light detection, brightness detection, all kinds of light detection switch, controlling street lamps, and automatic equipment \n\nSpecification: \nFeatures:\n\n--\n\nThis switch uses photoresistor to sense intensity of light and good quality relay can directly control load. \n\n--\n\nAdjust potentiometer to change sensitivity and set relay start threshold; when it is darker than the threshold, relay is energized; when it is brighter th: