The XH-M131 DC Light Control Switch Photoresistor Relay Module is a standalone automatic light control board that uses an onboard LDR photoresistor to sense ambient light and drives an onboard relay to switch connected loads, operating from DC 12V supply with a 5V, 20mA trigger threshold for the internal control circuit. The photoresistor relay module relay contacts are rated for 250VAC at 10A and 30VDC at 10A — high enough to directly switch mains-voltage lights, fans, and other AC appliances without an additional power relay or microcontroller.
The xh m131 photoresistor relay module operates standalone — no Arduino or programming is required. The onboard LDR senses ambient light directly, and an onboard potentiometer adjusts the light threshold at which the relay switches the connected load on or off, making the xh m131 light control switch a complete plug-and-play automatic lighting controller. The xh m131 photoresistor module is commonly wired so the relay activates connected lights at dusk when ambient light falls below the threshold, and deactivates them at dawn when light returns — the classic automatic street light and porch light control circuit.
The 12v photoresistor relay module switches mains voltage AC directly through the relay contacts, all AC wiring connections must be made with extreme care, proper insulation, and ideally by someone familiar with mains electrical safety — incorrect AC wiring on relay modules is a serious electric shock and fire hazard. StemVolt provides, this sensor relay module with trusted quality, ensuring reliable performance and easy usability.
Related Products:
- Checkout 12mm LDR Sensor
- Explore the Relay Modules
Features:
- Standalone LDR and relay — no Arduino or programming required
- Relay contacts rated 250VAC 10A and 30VDC 10A for direct switching
- Onboard potentiometer adjusts ambient light threshold for relay trigger
- DC 12V supply with 5V 20mA control circuit trigger threshold
- Plug-and-play dusk-to-dawn automatic light switching circuit ready
Technical specifications:
 Applications:
- XH-M131 Module used for automatic street light dusk-to-dawn switching
- Home automation uses photoresistor relay module for porch light control
- College project uses xh m131 photoresistor relay module for lighting demo
- Garden lighting uses xh m131 light control switch for automatic on-off
- Outdoor fixture uses 12v photoresistor relay module for India light automation
Package includes:
- 1 x DC Light Control Switch Photoresistor Relay Module
Krunal Vaghela –
This module provides automatic light-based switching and is ideal for smart lighting, energy-saving systems, and engineering projects
Asavari Gokhale –
Genuine electronic components
Devendra Solanki –
Received on time
Rutuja Kadam –
Online payment was easy and quick response support helped with setup, making it a reliable choice for automation and science kit applications
Siddhi Shinde –
Damage proof packing
Nirav Chudasama –
Great value for money
Hardik Sanghavi –
Received this photoresistor relay module in excellent condition, automatic light switching worked accurately and it performed reliably throughout my engineering project testing.