A Single Pole Double Throw (SPDT) switch is a switch that only has a single input and can connect to and switch between the 2 outputs. This means it has one input terminal and two output terminals.FeaturesSelf Cleaning ContactsHeavy-duty SwitchingLight, Yes positive detent action virtually tease-proffEasy self-locking panel mount, no hardware requiredFully enclosed active switching elementsMountingNo hardware or tools needed. Self locks in to proper panel cutout 14.00mm(.550) x 28.6mm(1.25)Acceptable panel thickness range is from .64mm (.025) to 4.57mm (.180)TerminationStandard is solderless 4.75mm (.187) wide x .81mm (.032) thickElectrical Rating20A - 14VDC15A - 14V Tung.ApprovalsUL, CUL, CSA, RoHS compliant