Wisamic LED Flashing Warning Light Caution Emergency Light Magnetic Beacon Strobe Amber (Yellow) Color 12V 8W for Car Lorry Van Truck High intensity LED with low polycarbonate dome; self contained LED no external flasher required.High bright. Up to 50000 hrs life expectancy. Bottom with one big round magnet ,cover by base, No scrape car's painting. Perfect for use in Fog, Rainy,Snowy and Mudwind season. Ideal for Emergency Situations. Easy to install. Mounted with magnets to the top, and plug into a 12V cigarette lighter. Weatherproof ready for exterior mounting; dust cover allows for easy maintenance.