ASP Tungsten 2 LED Lights Tested for durability 5 1/4" overall flashlight. Black aerospace aluminum construction with pocket clip. O-ring sealed. High output Cree LED with 125 Lumen output. Parabolic reflecting chamber produces a brilliant white beam of incredible brightness. Made using the highest quality materials Cree High Intensity LED Three Position Locking Switch Machined High Strength Aluminum Housing Replaceable Pocket Clip 200 Lumens, 2 hour Runtime