The SureFire X400UH-A-RD Ultra-High Output White LED and Red Laser provides pistol owners with the opportunity to incorporate illumination and instant laser-targeting into their defensive system with the installation of a single unit onto their handgun’s Picatinny rail. The SureFire X400UH-A-RD Ultra-High Output White LED and Red Laser uses a bezel that interfaces with the company’s Masterfire Rapid Deploy Holster, locking the light into the holster for secure retention and also enabling users to holster nearly any pistol equipped with the light. Total light output of 600 lumens Uses two CR123A batteries for power Total weight of 5.9 ounces Measures Mfg: Surefire