Sci r13 423l series 30a toggle switches 12vdc 1p 12v on off sci r13 423l green an spst panel mount toggle switch with a green led in the tip of the lever which lights up when the switch is in the on positionthe switch has a built in resistor enabling the led to operate from a 12v dc supply sci r13 423l green 30a toggle switch 12vdc 1p 12v on off