The DC Light Control Switch Photoresistor Relay Module is a standalone board that switches a relay (an electrically controlled switch) on or off based on ambient light levels measured by an LDR (Light Dependent Resistor — a component that changes resistance with light intensity). The photoresistor relay module runs on 12V DC and can switch mains loads up to 250VAC at 10A, which covers lights, fans, and small appliances.
The xh m131 photoresistor relay module has a non-obvious feature — the relay trigger logic is adjustable, letting you choose whether the relay activates in darkness or in light. Mounting it where stray light from the controlled lamp hits the sensor causes an oscillation loop where the relay switches on and off repeatedly.
The xh m131 light controle switch works without a microcontroller for simple dawn-to-dusk projects. Makers building automatic lights projects, students learning relay control, and prototyping light-triggered switching circuits use this board. Connect 12V to power, load to the relay terminals, and place the LDR facing ambient light. StemVolt provides this sensor with trusted quality, ensuring reliable performance and easy usability.
Related Products:
- Explore the Relay Modules
Features:
- Relay switching voltage rated at 250VAC at 10A covers standard mains lighting and fan loads.
- DC switching up to 30V at 10A handles low-voltage solar and battery-powered switching applications.
- xh m131 photoresistor module built-in LDR senses ambient light and toggles relay without any external sensor.
Technical specifications:
| Specification | Details |
|---|---|
| Model No | XH-M131 |
| Operating Voltage | DC 12V |
| Sensor Type | Photoresistor (LDR) |
| Switching Voltage (VDC) | 30@10A |
| Trigger Voltage (VDC) | 5 |
| Trigger Current (mA) | 20 |
| Switching Voltage (VAC) | 250@10A |
| Model No | XH-M131 |
Applications:
- Automatic garden light project uses this module to switch pathway LEDs on at dusk automatically.
- DC Light Control Switch Photoresistor Relay Module switches a 250VAC room light based on natural daylight.
- 12v photoresistor relay module triggers a 12V water pump relay when solar panel light level drops below threshold.
Package includes:
- 1 x DC Light Control Switch Photoresistor Relay Module
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