Streamlight PolyTac LED Flashlight with R.A.M. Rifle Rail Mount - Weapon Light C4 LED 2-3X brighter than High Flux LED! 4,800 candela peak beam intensity; 120 Lumens Attaches to any Picatinny /Mil Spec or Weaver Rail Run time up to 3 hours Tailcap push button provides one-handed momentary or constant "on" operation. High impact super tough nylon polymer for exceptional durability and a sure grip