Wecade High Intensity 10 LED 30W Volunteer Firefighter Emergency Vehicle Magnetic Mount Strobe/Flash Beacon Warning Light (White) 10 Big Size LED warning light with 7 different flashing model. Upto 50,000 hrs life expectancy while consuming less power then standard bulbs With safe voltage and double insulation, it is very safe to use and not harmful to human body in rain Fits All vehicles equiped with a 12 volt cigarette adapter. The Strong magnet can be firmly fixed to the roof.