Uxcell Relay Module Product name : relay module; model : srd-12vdc-sl-c Material : electronic parts; Number of channels : 1 Coil Voltage : 12V dc; load : 10A, AC 250V/125V, dc 30V/28V Size : 5.3 x 1.8 x 1.8Cm/2.1" x 0.7 inch x 0.7"(L*w*h); color : Blue Weight : 23G; Package : 1 x relay module