XH-M131 photoresistor module brightness automatic control module 12V light control relay light switch (LDR+RELAY)

 

The module can be used for light detection and brightness detection. It has a power indicator (red) and a relay pull-in indicator (blue), and has four M3 screw mounting holes, which greatly facilitates the installation. The board can be adjusted by the potentiometer. Sensitivity, with built-in relay, can be used as a variety of brightness detection control switches, can be used in street lights, etc., automatically turn on at night, automatically turn off during the day, and other equipment that requires automation.

 

 

 

 

   1. The module uses 12V power supply, with anti-reverse connection function, the reverse connection of the power supply will not damage the module;

 

   2. The maximum load capacity of the normally open interface: AC 0V-125V/20A , DC 0V--14V/20A; the module output has three ports common ( COM ), normally open ( CK ), normally closed ( CB ), three Each port is equivalent to a dual control switch. When the relay coil is energized, the common terminal and the normally open terminal are connected; when there is no power, the common terminal and the normally closed terminal are connected; the COM terminal is generally connected to the negative power supply through the load , and the normally open terminal is connected to the positive power supply. ;