4-Channel 12V Relay Module with Light Coupling, Opto-Isolated for Arduino & Microcontrollers, High/Low-Level Trigger, Screw Terminals

The 4-Channel 12V Relay Module with Light Coupling is a versatile solution for controlling high-voltage circuits with microcontrollers like Arduino, AVR, PIC, and ARM. Featuring optical coupling isolation, this relay module ensures safety by providing isolation between control and load areas. The reliable and stable triggering mechanism makes it ideal for a wide range of applications, reducing the risk of overheating and damage to sensitive circuits. The module has a clear power and relay operation status with easy-to-access screw terminals for quick and secure connections. The double FR-4 circuit board design and high-quality SMT process further ensure durability and performance. This module supports both high-level and low-level triggers, offering flexibility for various project requirements. Perfect for DIY electronics, automation, and control systems, this 12V relay module simplifies wiring and enhances the safety and efficiency of your projects.