1) anti-uv quartz glasses, us imported silica gel with korea pills, shockproof, high temperature resistance, prevent tube rupture 2) output power: 35w/55w +/- 2w xenon hid lamp 3) working temperature: -40 to +105¡æ 4) color temperature: 3000k, 4300k, 6000k, 8000k, 10000k, 12000k 5) high brightness: three times brighter than traditional halogen tungsten lamp 6) long life-span: over 3, 000 hours 40*30*25cm