2. AN ILLUMINATED PUSH BUTTON SWITCH FOR CONTROLLING ELECTRICAL CIRCUITS COMPRISING: AN OPEN-ENDED HOUSING INCLUDING AN ACTUATABLE SWITCH HAVING A PLURALITY OF CONTACTS FOR CONTROLLING SAID CIRCUITS; A LIGHT TRANSMITTING PUSH BUTTON SLIDABLY MOUNTED IN SAID OPEN END OF SAID HOUSING AND RETAINED THEREIN FOR LIMITED LONGITUDINAL MOTION, SAID PUSH BUTTON HAVING AN END PORTION; AN ELECTRICALLY CONDUCTIVE MEMBER POSITIONED AGAINST SAID END PORTION; FIRST SPRING MEANS BIASING SAID MEMBER INTO ENGAGEMENT WITH SAID END PORTION AND URGING SAID PUSH BUTTON TOWARD THE OPEN END OF SAID HOUSING; A LIGHT SOURCE IN SAID PUSH BUTTON AND HAVING FIRST AND SECOND TERMINALS, SAID FIRST TERMINAL BEING POSITIONED AGAINST SAID CONDUCTIVE MEMBER; AN ELECTRICALLY CONDUCTIVE PLUNGER SLIDABLY MOUNTED IN SAID HOUSING AND ADAPTED TO ACTUATE SAID SWITCH, SAID PLUNGER BEING POSITIONED AGAINST SAID SECOND TERMINAL; SECOND SPRING MEANS BIASING SAID PLUNGER INTO ENGAGEMENT WITH SAID SECOND TERMINAL AND URGING SAID FIRST TERMINAL INTO ENGAGEMENT WITH SAID CONDUCTIVE MEMBER; AND MEANS CONNECTING SAID SPRINGS TO A SOURCE OF ELECTRICAL ENERGY TO ENERGIZE SAID LIGHT SOURCE.