SMAKN&reg; SRD-12VDC-SL-C 8 Channel DC 12V High Low Level Power Relay Module Board Product Name : Optocoupler Driver Relay Module;Relay Type : SRD-12VDC-SL-C Coil Voltage : DC 12V;Pole Number : 8 Channel Load : 10A, AC 250V/125V, DC 30V/28V;Overall Size : 13.8 x 5.5 x 1.8cm/5.4" x 2.2" x 0.7"(L*W*H) Materials : Metal, Plastic, Electric Parts;Main Color : Blue Weight : 118g;Package Content : 1 x Optocoupler Driver Relay Module