Tactical XT2Description A true power pack thats on its way to becoming a bestseller: powerful and inexpensive. The 400 lumen Walther Tactical Xtreme features two brightness levels, a stroboscopic effect and a handy, sturdy aluminum housing. It is operated by a button at the bottom of the housing and requires two CR123A batteries. Batteries and lanyard included. Batteries: 2 x CR123 (included) Details Batteries: 2x CR123 (3V) Brightness: 400 120 lumens Lumen: 400