2ch Relay Shield Module 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 : 5 x 4 x 2Cm/2" x 1.6 inch x 0.78"(L*w*h); materials : plastic, pcb, Fr4 Net weight : 30G Package Content : 1 x relay shield module