The 12V 4 Channel Relay Module is a versatile and reliable switching module designed for controlling multiple high-voltage or high-current devices using low-voltage control signals. Operating on 12V DC, this module allows independent control of four separate loads, making it ideal for automation, robotics, and control systems.
Each relay channel can be used to switch AC or DC appliances such as lights, motors, pumps, solenoids, fans, and other electrical equipment. The module is typically designed with optical isolation, which helps protect microcontrollers from voltage spikes and electrical noise, improving overall system safety and stability.