1,Applied to enhance lighting, eg. Vessels, Bus, Off-road vehicles, Trucks, Fire Engines, Forklifts, Product FeatureMining, Trains, Tanks, et 2,The high performance of tight waterproof,dustproof , quakeproof.Anti explosion 3. High brightness: Increase brightness by 30% than 55w halogen lamp,color temp 6000k pure white as sunlight. 4. One year limited warranty.