Body: T-6061-T6 Durable Aluminum alloy, anti-corrosive anodized housing, made by CNC machine. Lifespan for led bulb: Over 50,000hrs, no worry for replacing bulbs often. Driver circuit: High efficiency, constant current circuit maintains constant brightness and memory function Finishing: Anti-slide, comfortable feeling and easy for carrying. Reverse polarity protection: To protect from improper ...