The Fenix TK22 UE tactical flashlight is an upgraded version of the popular tactical TK22 model. Featuring improved performance, this flashlight can throw 1600 lumens a staggering 1,329 feet (405m). It can be powered by either a 21700 (included) or an 18650 battery with included ALF-18 battery insert. The TK22 UE comes with a 5000mAh rechargeable li-ion battery allowing for longer runtimes than any of the predecessor. Quickly activate the flashlight with the tactical tail switch and cycle through five lighting modes with the side switch. Durable and rugged, with a steel strike bezel and tungsten alloy glass breaking tips, the Fenix TK22 UE tactical flashlight continues to be a top choice in tactical flashlights.