ELEGOO 4-Channel 5V Relay Module with Optocoupler

Take control of high-power devices with the ELEGOO 4-Channel Relay Module. Designed for makers and engineers, this module allows your microcontrollers to safely manage larger electrical loads. Whether you are working on an Arduino, Raspberry Pi, or STM32 project, this module provides the necessary interface to bridge low-power logic with high-power appliances. Each of the four relays is capable of handling significant current, making it a versatile tool for various automation and control projects. The integrated optocoupler provides an extra layer of protection for your hardware, while the built-in status indicator lights allow you to monitor the working state of each channel at a glance. This module is a reliable component for building smart home systems, industrial controls, or any DIY electronics project that requires switching AC or DC power.