1) Operating with 12VDC(300mA).
2) Open each relay with 3 ~ 12 volts ( Can be directly connected to Microcontrollers , Arduino Boards or PC port).
3) Output of each relay can be used for current up to 10A (at 28Vdc or at 240Vac).
4) Each relay with LED illuminate when the relay is enabled.
5) Dimensions: 100 x 52 mm
6) Easy to connect the wires through PCB screw terminal blocks (Enlarge the photo to see it clearly).