This compact rechargeable polymer Xtreme Lumens™ tactical flashlight uses an LED rated at 800 lumens that works in conjunction with a high-efficiency deep parabolic reflector to create a usable beam rated at 205 meters.  The tail-cap switch provides momentary or constant-on functionality.  The housing is made from a glass-filled nylon polymer.  Power comes from a rechargeable Lithium-ion battery and includes the ability to run from a pair of CR123 batteries (batteries not included) thanks to the CR123 Battery Carrier (included). (Not compatible with rechargeable CR123-style batteries.)