XH-M131 DC 5V 12V 24V 10A Light Control Switch Photoresistor Relay Module Detection Sensor brightness Automatic Control Module

The XH-M131 Light Control Switch Module is a high-performance, easy-to-use automatic brightness control device designed for a wide range of electronic applications. Equipped with a sensitive photoresistor and a reliable relay, this module enables automatic on/off control of electrical equipment based on ambient light intensity, eliminating the need for manual operation and enhancing convenience and energy efficiency. This versatile module supports three common DC input voltages: 5V, 12V, and 24V, making it compatible with various power supply systems and suitable for use with Arduino, Raspberry Pi, 51 MCU, and other microcontrollers, as well as standalone operation. With a maximum load current of 10A, it can drive a variety of electrical devices, including LED lights, incandescent lamps, fans, and other small to medium power appliances, meeting the needs of both home and industrial applications.

The core component of the XH-M131 module is a high-sensitivity photoresistor, which accurately detects changes in ambient brightness. The module features adjustable sensitivity, allowing users to set the trigger threshold according to specific needs—whether it’s turning on lights at dusk or turning them off at dawn, or controlling devices in low-light environments such as basements, garages, or corridors.

Integrated with a stable relay, the module ensures safe and reliable switching of the load, with strong anti-interference ability and long service life. Its compact size and simple wiring design make installation and operation straightforward: just connect the power supply, load, and optionally a microcontroller, and the module will start working automatically without complex programming.

Ideal for home automation, street lighting control, security systems, and industrial automation, the XH-M131 Light Control Switch Module combines practicality, stability, and versatility. It not only simplifies the control process but also helps save energy by ensuring devices are only active when needed, making it a cost-effective solution for automatic brightness control projects.