The Fenix TK22 V2.0 tactical flashlight is an upgraded version of the popular tactical flashlight the TK22. Featuring improved performance, this flashlight can throw 1600 lumens a staggering 1,329 feet (405m). It can be powered by either a 21700 or an 18650 battery (no battery included) with the included ALF-18 battery insert allowing for longer runtimes than its 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 toughened ultra-clear glass lens, the TK22 V2.0 continues to be a top choice in tactical flashlights.