10Pcs Red Lighted 12V 16A Car Boat Auto Round Rocker Switch ON/OFF SPST Switch It can work in any car and anything with a 12 Volt DC source. Type: 2 Pins (3 Pins with LED) SPST: ON-OFF Easy setup. All you need is a 3/4"(19mm) hole and the switch will sit in nicely; no more square cut outs. SPST 2 pole design (On/Off) 3rd poles with LED to be connected to earth