The SureFire 6P LED Flashlight is a compact high-intensity LED flashlight for tactical, self-defense, and general use. This small flashlight produces a smooth 120-lumen beam; six times the light of a big two-D-cell flashlight. Ideal for self-defense, this is more than enough to temporarily blind and disorient an aggressor. The beam is smooth and focused, thanks to its precision-made micro-textured reflector system and tempered Pyrex glass lens. The flashlight"s hard anodized aluminum body makes it extremely durable. The tactically-correct push-button tailcap switch provides secure, ergonomic activation control: press for momentary-on, twist for constant-on. Lockout option prevents accidental activation during transport or storage.This is a true system type light, with many accessories and options that enhance its ability to suit mission-specific requirements. Its small size, durability, and high output make it an excellent everyday carry light. This is why Surefires are the flashlights of choice of law enforcement officers across the country.- Virtually indestructible LED emitter (no filament to burn out/break); electronically regulated to maximize output and run-time- Precision micro-textured reflector creates smooth, optimized beam- Coated tempered glass window resists impact and maximizes light- High-strength aerospace aluminum body, anodized for durability and to resist corrosion- Tactical tailcap switch--press for momentary-on, twist for constant-on. Lockout option prevents accidental activation during transport or storage- Weatherproof O-ring and gasket sealing- Faceted anti-roll ridge on head/bezel keeps the light stationary on flat surfaces. Textured knurling provides enhanced gripability.- Uses high-energy CR123A batteries with 10-year shelf life