Module 4 Relay -5V-Transistor

4 channel relay module Microcontroller development board 5V relay Trasistor
 Operating voltage 5V
 Using a large current relay, AC250V 10A DC30V 10A
     With a fixed bolt hole, easy to install
     Small board PCB size: 7.2cm * 5.4cm
     Power indicator (green), four relay status indicator (red)
     Each plate weight is 60g
     Module Interface Description (6-wire)
     VCC external 5V
     GND External GND
     1N1-1N4 relay control interface to the microcontroller IO port