Amber large FLASHING indicator light. Light will flash when connected to a 12 volt power source. 12 volt incandescent bulb. Bulb is replaceable, see part #19-313. The 430 series indicator light is a large 12 volt light that has a chrome .900” diameter bezel which can be removed to have a black bezel. The light uses a hex nut fastener to mount, requires a .750” mounting hole and can be mounted on panels up to .250” thick. The lights have .250” terminals. Incandescent lights ARE NOT polarity sensitive. All that is needed is a 12 volt positive and negative. 17-430 series and 17-440 series indicator lights are available with engraved lenses. See “Light” category on home page.