1: LED Chipset: America CREE Q5; Color temperature: 6800K-8000K, life time: more than 50000-100000 hours. 2: Luminance output: (Max-Middle-low-p flash-SOS), design one or more grades switch. Max: 235Lm, 1000MA lighting for 3.0hours. Middle: 180Lm, 700MA lighting for 4.0 hours. Low: 80Lm, 150MA lighting for 20.0hours 3: Extreme Range: 600M. 4: Optimized constant-current circuit and keep the same luminance. 5: Aerospace aluminum alloy and hard anodized body, made by exact CNC lathe, Military level hard anodic oxidation, wear-resisting and durable, radiance color and not fades in color. 6: Whole High definition toughened glass lens. 7: High definition vacuum coating aluminum alloy reflect light cup (orange peel surface or glaze surface). 8: IP level: IPX-8. 9: Battery: 1 * 18650 Lithium Battery (2200mAh)or 2*CR123 Li-Battery 10: Battery Charge: take out of battery and then charging. 11: Switch: click-type tailcap switch. 12: Pro-environment silica gel deflating cap (black or green color). 13: Weight: 218.2g(exclude battery). 14: Widely usage: Police, traffic, fire-fight, water project, forestry, outdoor, explore, trip and so on. Color box.