The Nightstick Xtreme Lumens Metal 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, tail-cap switch and bezel are made from 6061-T6 aluminum with a type III anodized finish, 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.