PowerZone 12139, AA Battery, LED Lamp, 2000 Lumens, 180 m Beam Distance, 8 hrs Run Time, Black | LED Tactical flashlight has a anti-roll head, is water resistant and extends to adjust its focus. High: 2000 lumens, 2 hrs run time/low: 200 lumens, 8 hrs run time. Powered by 9 AA batteries included.