Arduino - 4 relay board 5V

This board has 4 controllable relays that can be operated from an Arduino™ or compatible board.
Ideal for switching power devices.
Specifications:
- Number of relays: 4.
- Driving voltage 5 V TTL. Board power supply 5 V.
- Relay specifications: AC 250 V/10 A, DC 30 V/10 A.
Dimensions: 77 x 55 x 22 mm.