1 Channel 5V Relay Module KY-019

Product Description
1, the new 5V Relay Module
2, there is a normally open and one normally closed contact
3, a power indicator light
4, a control indicator, pull off, disconnect does not shine
5, can be used as microcontroller development board module can be used as home appliance control
6,5 V-12V to TTL control signal
7, transistor drive to increase the relay coil control pins high impedance.
8, the control signal DC or AC, 220V AC load can be controlled.
9, the control pin has a pull-down circuit to prevent malfunction relay vacant.