Sci r13 423l series 30a toggle switches 12vdc 1p 12v on off sci r13 423l gelb an spst panel mount toggle switch with a yellow 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 gelb 30a toggle switch yellow 12vdc 1p 12v on off