Amber standard brightness. 20 mcd light output. These LED indicator lights feature a black brass housing and use a hex nut fastener with a Nylon insulator. It has 4” wire leads. It uses a .328” mounting hole with a .375″ diameter Bezel and can be mounted to a panel with a thickness of up to .250”. Estimated life is 100,000 hours. 12 volt, 30 ma. LED’s are polarity sensitive, black wire to ground.