5v 4 Channel Relay Module with Optocoupler Relay Output

Product Description

• 4-channel 5v relay output modules
• relay output contacts 250A 10A
• Input IN1, IN2, IN3, IN4
• the signal line LOW effective
• VCC, GND power input
• can relay a separate power supply relay power input of JD-VCC.

Uses:

• Support all MCU control
• The industrial sector
• PLC control
• Smart home control