8 Channel Relay Module

Can be used as microcontroller development board module can be used as home appliance control
5 V 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 vacantly

Specifications:- 

• Maximum load: AC 250V/10A, DC 30V/10A
• Trigger current: 5mA
• Working voltage: 5V
• Module size: 50 x 26 x 18.5mm (L x W x H)
• Four mounting bolts holes, diameter 3.1mm
• DC+: positive power supply (VCC)
• DC-: negative power supply (GND)
• IN: can be high or low level control relay
• NO: normally open relay interface
• COM: Common Interface Relays
• NC: normally closed relay interface
• It is low level trigger when jumper connect to LOW pin
• It is high level trigger when jumper connect to HIGH pin