5 volts  4-Channel Relay Module Board
This is a 5V 4-Channel Relay interface board
Be able to control various appliances, and other equipments with large current
It can be controlled directly by Micro-controller (Arduino UNO, MEGA, PRO, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
5V 4-Channel Relay interface board, and each one needs 50-60mA Driver Current
Equiped with high-current relay, AC250V 10A ; DC30V 10A
Indication LED’s for Relay output status
Size: 75*55*18.5MM
Weight:61g


Application:

Supports all MCU control
The industrial field
PLC control
Smart home control

Interface:
VCC: 5V Power supply positive
GND:5V Power supply Negative
IN1-IN4: Signal trigger
NO1 - NO4: Open  interface
COM1 - COM4:Common Interface
NC1 - NC4: Closed interface