XH-M131 photosensitive resistor module brightness automatic control 5V12V light control relay light switch

This module can be used for light detection, brightness detection, with power indicator light (red) and relay engagement indicator light (blue), and comes with fourM3The screw mounting hole greatly facilitates installation. The board can adjust the sensitivity of light through a potentiometer, and comes with a relay that can be used as various brightness detection and control switches. It can be used in devices such as street lights, which automatically turn on at night and turn off during the day, as well as other devices that require automation.

Board parameters

oneThe module adopts12VPower supply, with anti reverse connection function, reverse power supply will not damage the module;

twoLoad capacity of normally open interface: AC0V--125V/20A, DC0V--14V/20A;The module output has three common ports（COM）, normally open（CK）, normally closed（CB）Three ports are equivalent to a dual control switch. When the relay coil is powered, the common terminal is conductive to the normally open terminal, and when there is no power, the common terminal is conductive to the normally closed terminal;COMThe terminal is usually connected to the negative power supply through the load, and the terminal is usually connected to the positive power supply;

threeSensitivity can be adjusted through a potentiometer. By adjusting the potentiometer, the threshold for starting the relay can be set. When the light is below this threshold, the module relay will be closed, and when it is above this threshold, the relay will be disconnected;