5v Relay Features:
1. Can be used as microcontroller development board module, can be used as home appliance control
2. TTL 5V-12V control signal
3. Controls DC or AC signals, can control 220V AC loads.
4. Has a normally open and normally closed contact
5. Power indicator
6. Control light, light when pulling off, no light when pulling on
7. Transistor drive to increase the relay coil, control pin high impedance.
8. The control pin has a pull-down circuit to prevent the suspended relay from malfunctioning.

5v Relay Parameters:
1. Operating voltage: DC 5V
2. Relay control capacity:10A250VAC/10A 30VDC
3. High level control is valid
4. Pin description: +: power supply positive, -: power supply negative, S: signal input
5. Relay interface description: NC: Normally Closed, COM: Common, NO: Normally Open

Package Included:
5 x 5v Relay Module