12V light switch photo resistor relay module detection sensor XHM131 Ref: 4507

1. With the help of the photoresistor, the induction light intensity is directly controlled with the relay. 2. The 12V current input is designed as a sensor for the relay board regulator transistor. It is used to make the product more stable and reliable. 3. Distribution bit sensitivity setting, relay threshold starts by adjusting the potentiometer. When it is dark at this threshold, the module relay is activated; at this threshold, the relay releases. 4. Onboard optocoupler isolation relay effectively protects the chip and makes the product work more reliably.