1: LED Chipset: CREE T6; Color temperature: 6800K-8000K, life time: more than 50000-100000 hours. 2: Luminance output: (Max-Middle-low-flash), design one or more grades switch. Max: 900Lm, 3hours. Middle: 800Lm, 6.0 hours. Low: 120Lm, 18.0hours 3: Extreme Range: 450M. 4: Optimized constant-current circuit and keep the same luminance. 5: Aviation magnesium alloy material, 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: 4 * 18650 Lithium Battery (2200mAh) Li-Battery 10: Battery Charge: charging directly. 11: Switch: tailcap tactical switch. 12: Pro-environment silica gel deflating cap (black or green color). Colour box/ carton.