Quick cooling Aluminum housing which can performance best heat dissipation and best seal ability alloy as the heat sink and casing.The aluminum fan shape design, makes it dissipate heat more faster and effective, lifespan over 50,000 hours. As the working voltage of this LED work light is from DC 10 to 32 Volt, it can be widely used to most of vehicle styles, Back Up Light, ATV, SUV, Truck, Trailer, Forklift, Trains, Boat, Excavator, Dozer, Road Roller, Crane, Mining, Tractor, Harvester, Grain Drill, Fire engine, Trailer, Rescue Vehicle, Outdoor lighting, etc. 2 Pack 40W White LED cubes light with adjustable brackets, makes it easier to change the direction of the light, so you don’t need to disassemble every parts of the LED light bar if necessary.