SureFire's X400U is the perfect aiming/illumination solution for your handgun/long gun set up. The X400U uses a recoil proof LED emitter, to produce a powerful beam of 1000 lumens focused into a wide center spot with SureFire's own TIR lens. The center spot provides flawless target identification/illumination and can also temporarily impair your target's vision with its 1000 lumen beam. The X400U comes equipped with a laser sight as well, available in a standard 635 nanometer red beam or a 514 nanometer green laser beam. Each of these 5-milliwatt lasers are highly visible to the human eye, and greatly assist the user in quickly and accurately engaging their target, and rarely need to be re-zeroed. Features of the SureFire X400U Laser/Light Mount: Compatible with handguns and long guns 1000 lumen output Light runtime: 1.25 hours Laser runtime: 24 hours IPX4 waterproofing SureFire X400U-A Ultra 1000 LU Black Handgun WeaponLight w/ Green Laser X400U-A-GN