2 channel relay module 5V 2-channel relay modules 5VDC 2 road relay module control board with optocoupler2 channel relay module relay expansion board for arduino 5V low level triggered 2 way relay module Details: 1 Dimensions: 50. 5mm (length) * 38. 5mm (W) * 18. 5 (H) 2. PCB Color: Black 3 board four weeks with four screws holes, hole diameter 3. 1mm, easy to install and fixed 4 relay of high quality loose music relays SPDT. A common terminal, a normally open, one normally closed terminal 5 optocoupler isolation, good anti jamming 6 low pull, high

2 channel relay module relay expansion board for arduino 5V low level triggered 2-way relay module

Details: 

1 Dimensions: 50.5mm (length) * 38.5mm (W) * 18.5 (H)
2. PCB Color: Black
3 board four weeks with four screws holes, hole diameter 3.1mm, easy to install and fixed
4 relay of high quality loose music relays SPDT. A common terminal, a normally open, one normally closed terminal
5 optocoupler isolation, good anti-jamming
6 low pull, high release. Energisation status indicator light, release status LED is off
7. VCC of system power, JD_VCC relay power. You can plug in jumpers

Relay contact capacity 250V10A. Relay output normally open, normally closed;
• active low. 5V relay signal input voltage range :0-5V;
• VCC system power. JD-VCC relay power. Default 5V relay. JD-VCC and VCC shorted

Electrical parameters:
Supply voltage: 5VDC
Current: 10A
Load: 250V 10A AC or or 10A DC