Flashes once per second with an impressive 2.5 joules flash at 200,000 candlepower peak
Fresnel lens disperses light effectively
Weather tight, ABS plastic dome and black base
With state-of-the-art construction designed to last for years, these Bright Star Strobe Lights mount magnetically to any metallic surface - magnets are covered with a soft cloth to protect painted areas from marring. Its 10-ft. coiled power cord plugs into vehicle's cigarette lighter.