Wolo’s BRIGHT STAR STROBE LIGHT produces a powerful warning light flash 2.5 joules (200,000 candlepower) once each second. The fresnel lens is designed to withstand all weather conditions. The lights base is made of strong ABS plastic and has a powerful protected magnet that will secure light to any metal surface. Includes a 10 ft. power wire with cigarette lighter plug. Ideal for any 12-volt vehicle.