Application: offroad vehicle,ATVs,truck,engineering vehicles(excavator,treedozer,road roller,bulldozer,crane and mining truck etc.),special vehicle(fire engine,police cars,rescue vehicle,communication vehicle,military command vehicle)forklift,trains,boat,bus,and tanks.after connceted with a 110V/220V power switcher,also can used for public buildings,hotels,gardens,stages,city squares,garden lighting,mining,outdoor billboards` lighting,outdoor landscape lighting,buildings and bridge landscape`s lighting.