... water and any severe environment.4.DC power supply system,can be adapted to any vehicle, ... than 30000H.6.Stainless steel material are adopted for all hard parts of this lamp, which ... ,durable,hard to corrode. ApplicationLED work lamp for tractor,Truck, boats,farming,mining,forklift,off-road ... Sea; (We will choose the most beneficial way for our customers according to the order weight).---------Joan here, ...