FEATURES:-With Integrated red aiming laser this intensely bright virtually indestructible strobing rail-mounted tactical light attaches to almost any gun in seconds-C4 LED technology impervious to shock with a 50 000 hour lifetime-300 Lumens; 438 meter beam distance; 12 000 candela peak beam intensity; runs 2.5 hours-Laser ONLY runs 48 hours-Mounts directly to all MIL-STD-1913 (Picatinny) rails & weapons with Glock-style rails