5.0v Relay 1 Channel Module KY019
- 5V Relay Module
- 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