The Nightstick Xtreme Lumens Polymer Multi-Functional Rechargeable Flashlight combines an 800-lumen LED with a deep parabolic reflector for a 205-meter distance. This tactical flashlight features a tail-cap switch for access to momentary or constant-on functionality, plus a set of high, medium or low brightness settings and a disorienting strobe. The housing is made from a glass-filled nylon polymer, plus it comes waterproof, impact and chemical resistant. What’s more, this Nightstick flashlight can run on a rechargeable lithium battery or two CR123 batteries.