The new SureFire X400 WeaponLight builds upon the success of the battle-tested SureFire X300 which has become a favorite in the tactical community because of its overwhelming 110 lumen output and its legendary durability. We decided to add a world-class laser into the mix the X400 was born. Its integrated red laser, which sits poised and ready beneath the LED, features a 5 milliwatt power output, at 635 nanometers wavelength, making it nearly twice as bright as the nearest competitor and it rarely needs re-zeroing. The X400's versatile beam is a stand out too; it surges deep into the darkness yet provides enough surround beam for close-quarter combat and longer-range engagements too. The LED emitter and the TIR lens also make the X400 virtually immune to recoil since there's no filament to burn out or break. And the X400 can be mounted to a long gun, as well as a pistol, since it comes standard with Universal and Picatinny rail adapters that can even attach to rails that are out of spec. (The X400 accepts optional SureFire switches to fit almost any need. See below.) A hard-anodized aerospace-grade aluminum body, O-ring seals, and ambidextrous switching round out to make this the finest light and laser combination around.