NITECORE MT40GT 1000 Lumen CREE LED 675 yards long throw tactical flashlight with 4 X EdisonBright CR123A Lithium Batteries bundle Maximum output 1000 lumens utilizing a customized CREE XP-L HI V3 LED Maximum runtime of up to 31 hours Two rapid switching modes suit various user requirements Toughened ultra-clear mineral glass with anti-reflective coating This bundle includes 4 X EdisonBright CR123A Lithium Batteries