This compact recharge-compatible multi-function metal Xtreme Lumens tactical flashlight uses a CREE® 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, a set of user-selectable high, medium or low-brightness settings as well as a disorienting strobe. Power comes from a pair of CR-123 batteries (included) installed into the CR-123 Battery Carrier (included). The housing and tail-cap are made from aircraft-grade 6061-T6 aluminum w/Type III hard anodized finish. This light can be upgraded to a rechargeable model by adding the optional rechargeable Lithium-ion battery, charger and power cords.