arduino 4 Channels Relay Shield V1.3

External power supply voltage: 7 ~ 12V (> 200mA)
Maximum switching voltage relay: 240VAC/60VDC
Relay Max Switching Current: 5A
Contact load capacity: 1A 250VAC, 3A 120VA / 24VDC
Relay: 4
Wireless output interface: (serial) xbee / Bluetooth Bee / Wireless Programming Module
Occupied by Ar-duino ports: (relay) digital ports 2,3,4,5, (wireless module) digital ports 0,1