PURPOSE: To provide a simple constitution of a switch, by preparing a timer circuit which is operated delayed-action through lighting switch output, lighting a parking lamp through operating the switch prescribed times in a prescribed hours.

CONSTITUTION: The timer circuit TM is operated delayed-action by outputting the first stage changover of the lighting switch LS and the output of the timer circuit TM and lighting switch LS are inputted into a logical circuit LG. Then a counter CNT counts the output of the logical circuit LG, and a driving circuit DRV controls the output 1 of the counter CNT and lighting of a small lamp SL and the parking lamp PL respectively. And a head lamp HL is lighted by the second step changeover of the lighting switch LS.