Fenix TK22 920 Lumens Long Throw Range Tactical LED Flashlight Hunting Weapon Kit, LegionArms off set Mount, Pressure Switch and Holster max 920 Lumen using Cree XM-L2 (U2) LED with a lifespan of 50,000 hours Low-voltage warning function, to remind the users of battery replacement when in low voltage Four brightness setting & Strobe, The selected mode is memorized too (strobe mode doesn't memorize). Off Set tactical weapon mount, Mounts to your weapons universal or picatinny rail Tactical Click Push pressure Switch for Better and Easy Operation