Uxcell DC 12V 40 Amp 4 Pin Terminal SPST Vehicle Auto Car Alarm Relay (4 Piece) Product name : car relay; contact Type : spst Pin Number : 4 pin; current : 40A Coil Voltage : 12V dc; total size(approximate) : 3.8 x 2.3 x 1.5Cm/1.5" x 0.9 inch x 0.59"(L*w*h) External material : plastic, metal; main color : Black, Silver tone Weight : 81G; Package Content : 4 x car relay