About This ItemReliable 1-Channel Relay Module for Electronic Projects
This 1-channel relay module is designed for controlling high-power devices using low-voltage control signals. Ideal for Arduino, Raspberry Pi, microcontroller projects, smart home systems, automation equipment, and DIY electronics applications.
Supports 3V / 3.3V Trigger Signals
Compatible with 3V and 3.3V logic systems, allowing direct connection to single-chip microcontroller IO ports and other low-voltage control circuits. The relay is driven by high-level trigger signals for simple and reliable operation.
Optocoupler Isolation for Enhanced Protection
Built with photocoupler isolation technology to improve anti-interference performance and help protect sensitive control circuits from electrical noise and signal interference during operation.
High Load Control Capacity
Capable of controlling:
Suitable for switching lights, motors, pumps, fans, appliances, automation systems, and other electrical devices safely and efficiently.
Flexible Dual Power Supply Design
Features a selectable dual power supply configuration that allows the relay and control signal to either share the same power source or operate independently. This flexible design improves system stability and simplifies integration into different electronic projects.
Secure Rotary Terminal Connections
Equipped with rotary crimping terminals for stronger and more secure wire connections, helping improve reliability and reduce the risk of loose wiring during long-term use.
Built-In Signal Indicator Light
Includes an output signal indicator LED for quick visual monitoring of relay working status, making testing, troubleshooting, and operation more convenient.
Wide Range of Applications
Perfect for:
Acts as an electronic switch that safely uses a small control current to manage larger electrical loads.