Four Channel 5V Relay Module for Arduino

5V Relay 4Channel Module for Arduino, microcontrollers, Raspberry..etc
	

The 5V Relay 4Channel Module Can be used as microcontroller development board module can be used as home appliance control	
       5 V-12V to TTL control signal	
       The control signal DC or AC, 220V AC load can be controlled.	
       There is a normally open and one normally closed contact	
       A power indicator light	
       A control indicator, pull off, disconnect does not shine	
       Transistor drive to increase the relay coil control pins high impedance.	
       The control pin has a pull-down circuit to prevent malfunction relay vacant.
       SMD Components.