This compact rechargeable multi-function metal Xtreme Lumens tactical flashlight uses an LED rated at 800 lm that works in conjunction with a high-efficiency deep parabolic reflector to create a usable beam rated at 205 m. 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. The housing and tail-cap are made from aircraft-grade 6061-T6 aluminum and have a Type III hard-anodized finish. 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 CR123-style rechargeable batteries.). Features: LED technology Momentary or constant-on plus 3 brightness levels and strobe Sharp focused flashlight beam High-efficiency deep parabolic reflector Aircraft-grade 6061 T6 aluminum housing, bezel and tail-cap Type III hard anodized finish Non-slip grip Large textured tail-switch 1 inches handle diameter 1-1/4 inches head diameter accepts 3rd party filters IPX7 waterproof Impact and chemical resistant Rechargeable lithium-ion battery (included) Can also be powered by (2) CR123 batteries (not included) using the CR123 battery carrier (included) Serialized for personal identification