This flashlight represents the absolute latest in Lifetime LED technology and performance. 200 lumens of pure white long range light will certainly illuminate at great distances while also allowing a certain amount of “spill light” for objects in closer range. Total run time of up to 10 hours with about 3 hours of blinding brightness, then another 7 hours of still usable light. (2) CR123 Batteries included. Tail cap design allows the user to have both a “tactical tail cap” as well as a “click on/off tail cap” in one simple tail cap. Not intended for gun mounting purposes although it can be used on guns. Designed for the professional who prefers a handheld unit, also better for users with smaller hands. Limited Lifetime Warranty (even on the bulb). All performance ratings have been independently lab tested to ANSI FL1 Standards.