8 Channel Dc 5V Relay Module With Optocoupler For Arduino Uno R3 Blue

8-Channel Relay Module Feature: 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 Specifications: Product Name: 8-Channel Relay Module Output Channel: 8 Power Supply: 5V Load Voltage: AC 250V 10A, DC 30V 10A Total Size: 137mm x 56mm x 17mm/ 5.4" x 2.2" x 0.7" (L*W*H); Mounted Hole Size: 3mm/ 0.12" Mounted Hole Center Distance: 132 x 50mm/5.2" x 2"(L*W); Material: Electric Part