... 1. Reasonable design for heat elimination.2. High performance of waterproof (IP=67), dustproof, ... : 30% increase brightness than 55W halogen bulb.5. Vibration free mounting: stainless steel ... lamp for Farming, Mining, SUV, Fire-Engines, Vessel, truck, forklift, off-road, ATV, Excavator, Heavy duty equipment, etc. four color high quality ... hid working lamp