The 5-28V ESP32 WiFi 4 Channel 5V 10A Relay Module is a wireless relay control board designed for IoT projects, smart home automation, and remote electrical switching applications. Powered by an ESP32 WiFi development platform, it enables wireless control of connected devices and supports integration into customized automation systems.

Featuring four independent relay channels, this module allows users to control multiple electrical circuits from a single board. Its DC 5V–28V input voltage range offers flexible power options, while the 5V relay system is suitable for compatible switching applications. With built-in WiFi connectivity and programmable control capabilities, it is ideal for DIY electronics, lighting automation, equipment control, and embedded IoT projects.