The 12V 2-Channel Relay Module is designed for controlling high-voltage AC or DC devices using low-voltage logic signals from Arduino, ESP32, Raspberry Pi, or other microcontrollers. Each relay channel is isolated via an optocoupler to protect the control circuit. The module features onboard LEDs indicating relay activation and screw terminals for secure connections.

Key Features

2 independent relay channels
Opto-isolated inputs for safe operation
Onboard LED indicators for relay status
Supports both AC and DC loads
Compatible with 5V or 12V logic (depending on module)

Variants

Standard 2-Channel Relay Module (12V relay)
2-Channel Relay Module with 5V trigger input

Specifications

Feature	Details
Number of Relays	2
Relay Voltage	12V DC
Max Switching Voltage	250V AC / 30V DC
Max Switching Current	10A
Isolation	Opto-isolated inputs
Trigger Voltage	5V–12V DC
Dimensions	~70 × 45 × 20 mm

Applications

Home automation (lights, fans, appliances)
Industrial automation
IoT relay control projects
Robotics and motor switching
Remote-controlled AC/DC devices

Compatible Boards / Circuits

Arduino Uno, Mega, Nano
ESP32 / ESP8266
Raspberry Pi (via GPIO and opto-isolation)

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12v-2-channel Relay