20PCS x 12V 16A Car Boat Auto Round Rocker ON/OFF SPST Switch Blue Lighted 1.Easy setup. All you need is a 3/4"(19mm) hole and the switch will sit in nicely; no more square cut outs. 2.Our switch comes with a kyhole slot to prevent unwanted rotation 3.Blue LED when turned on 4.SPST 2 pole design (On/Off) 3rd poles with LED to be connected to earth. Package Include:20PCS x 12V 16A Car Boat Auto Round Rocker ON/OFF SPST Switch Blue Lighted