✅ 4-Channel Relay Module

Uses

Switching AC appliances with microcontrollers

Home and industrial automation

Smart relay-controlled devices

Functions

Allows low-voltage microcontrollers to switch high-voltage loads

Electrically isolated control

Supports both NO (Normally Open) and NC (Normally Closed) switching

Features

4 independent relay channels

Operates at 5V logic level

LED indicator per channel

Max switching voltage: 250V AC / 30V DC