ITEM NAME:DC 5V Coil Relay Module for SCM Development/Home Appliance Control V4I7 DC 5V Coil Relay Module for SCM Development/Home Appliance Control V4I7 Product Name : Relay Shield Module; Fit for : for Arduino Rated Coil Voltage : DC 5V; Rated Voltage & Current : 10A 250VAC, 10A 125VAC,10A 30VDC, 10A 28VDC Total Size : 4 x 2.8 x 2cm/1.6" x 1.1"x 0.78"(L*W*H); Materials : Plastic, PCB, FR4 Net Weight : 15g Great for DIY project. Package Content : 1 x Relay Shield Module Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Fit for : for Arduino.