The Axeon Optics ShotLight 120X LED light mounts on the end of your shotgun's magazine tube, out of the way, easy to reach, and in line with your muzzle for your home security or night hunting needs. The on-off buttons can easily be oriented to the shooter's preferred position with just the turn of an Allen (hex) key. The ShotLight 120X runs on a single CR123A battery and has a runtime of 30 minutes at 120 lumens, more than sufficient for home defense. It sheds light in the direction of your shotgun giving you better visibility. The ShotLight mounts to the twelve gauge versions of the Mossberg 500, Remington 870, and Winchester SXP shotguns with the included mounting adapters. Each unit comes with one battery.