Uxcell Relay Module Product name : relay module; relay Type : srd-5vdc-sl-c Coil Voltage : dc 5V; pole Number : 1 channel Load : 10A, AC 250V/125V, dc 30V/28V; overall size : 4.3 x 1.8 x 1.8Cm/1.7" x 0.7 inch x 0.7"(L*w*h) Materials : metal, plastic, electric parts; main color : Blue Weight : 15G; Package Content : 1 x relay module