XH-M131 Photoresistor Brightness Auto Control Module 12V Relay Light Switch, 501 Original

Description:1. This module can be used for light detection and brightness detection. It has power indicator (red) and relay suction indicator (blue), and has four M3 screw mounting holes, which greatly facilitates installation.2. The board can adjust the sensitivity of light by potentiometer. It has relays. It can be used for various brightness detection and control switches. 3. It can be used for street lights, automatic opening at night, automatic extinguishing during the day, and other devices that need automation.Feature:1. The module is powered by 12V and has anti-backconnection function. The backconnection power supply will not damage the module.2. Maximum load capacity of constant-opening interface: AC 0V-125V/20A, DC 0V-14V/20A; module output terminal has three ports common end (COM), constant-opening (CK), constant-closing (CB), three ports are equivalent to a double-control switch. When the relay coil is electrified, the common end and constant-opening are turned on, and when there is no electricity, the common end and constant-closing end are turned on. COM terminal usually connects the negative pole of power supply through load and the positive pole of power supply at the beginning.3. The sensitivity can be adjusted by potentiometer, and the threshold of start-up relay can be set by adjusting potentiometer. When the light is dimmer than this threshold, the module relay will be sucked in and the relay will be disconnected when the light is brighter than this threshold.Specification:Product size: 52*30*17mm/2.04*1.18*0.66''Note: Please allow 1-3mm differs due to manual measurement.Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.1 X XH-M131 Photoresistor Module