XH-M131 Light-controlled Relay Module 24V

This module can be used for light and brightness detection. It features a power indicator (red) and a relay engagement indicator (blue), and has four M3 screw holes for easy installation. The board's light sensitivity can be adjusted via a potentiometer. With its built-in relay, it can function as various brightness detection control switches, such as streetlights that automatically turn on at night and off during the day, as well as other devices requiring automation.

Board Parameters
1. The module uses 24V power supply and has reverse connection protection; reverse connection will not damage the module.
2. Maximum load capacity of normally open interface: AC 0V--125V/20A, DC 0V--14V/20A; the module output has three ports: common terminal (COM), normally open (CK), and normally closed (CB). These three ports are equivalent to a two-way switch. When the relay coil is energized, the common terminal and the normally open terminal conduct; when de-energized, the common terminal and the normally closed terminal conduct. The COM terminal is generally connected to the negative terminal of the power supply through the load, and the normally open terminal is connected to the positive terminal of the power supply.
3. Sensitivity can be adjusted via a potentiometer. By adjusting the potentiometer, the relay activation threshold is set. When the light is dimmer than this threshold, the module relay is energized; when the light is brighter than this threshold, the relay is de-energized.