... rapidly, Longer life span.3.IP68,can work under water and any severe environment.4.DC ... adapted to any vehicle,ship and field work environment.5.Using brand high power Led, ... it sturdy ,durable,hard to corrode. ApplicationLED work lamp for tractor,Truck, boats,farming,mining,forklift,off- ... Sea; (We will choose the most beneficial way for our customers according to the order weight).---------Joan here, ...