ITEM NAME:XH-M131 Photoresistor Brightness Auto Control Module 12V Relay Light Switch #gib Store Home Promotion Hot Item Add to Fav.1 X XH-M131 Photoresistor Module. 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.
