Feature: 1. The photoresistor module is most sensitive to ambient light and is generally used to detect the brightness of ambient light. 2. When the ambient light is darker than the set threshold, the relay is energized, the common terminal and the normally open start are turned on. When the external ambient light is brighter than the set threshold, the relay is closed, and the common terminal and the normally closed end are connected. 3. Common side, normally open, normally closed three ports, equivalent to a dual control switch, relay coil power supply, common terminal and normally open conduction, radio, common terminal normally closed terminal conduction.
Specification: Working voltage: 5V / 12V Load power: AC 250V / 10A, DC 30V / 10A With fixing bolt holes, easy to install.