Litesam aims at manufacturing high-quality LED products. We are good at shooting potential customers' demand and provide excellent service to all tactical flashlights enthusiasts. Features High-strength aerospace aluminum body, military-grade hard anodized for extreme durability. Coated tempered window resists impact, maximizes light. Total Internal metal reflector to create a high-intensity beam. Waterproof O-ring and gasket sealing. Tail switch and side switch. Battery indicator function: Press the side switch then click the tail switch. One green blink indicates 1v, one red blink indicates in 0.1v, for instance, 3.8v, 3 green blinks and 8 red blinks. Power recharging: When the torch is recharging, the lamp will blink in green and finally stay In green when battery fully charged. Specification LED: CreeXP-L Input: DC 2.75 V - 6 V Reflector: precise metal filmed Glass: filmed mineral glass Material: HA-III military hard-anodized finish aluminum alloy Housing: Premium Type III hard-anodized anti-abrasive finish of black Attention Take out the battery if you won't use the flashlight for a long time. Turn on in "strobe" mode may cause a seizure for people with photosensitive epilepsy. This torch would get warmer after long time use. It does not mean that the product is a defect. Do not use 16340 battery for this mode. WORRY-FREE WARRANTY We offer you 5-year product replacement and return.