... waterproof 3. universal high brightness easy installation 4. suitable for trucks mine,trucks etc HOT! 27W Vehicle / Truck ... installation dimensions.2. Almost no heat produced, safe for confined work spaces.3. Built-in high efficiency glass reflector ... performance,8. Environmental-friendly and energy saving, Applications: Great for Offroad vehicle,ATVs, Truck, Engineering Vehicles (Excavator, Treedozer, ...