6 11/16" overall length. Non-reflective, corrosion resistant 6061-T6 aluminum and 1045 steel construction. Xenon Halogen bulb charged with a peak output of 150 lumens on fresh batteries, and the reflector is aluminum for durability. High temperature Borosilicate glass lens which is resistant to scratching, easy to clean and will not deform like Lexan. Lens retainer ring with window breaking capacity. Recessed switch offers momentary or constant run modes. Battery case is machined with a 30mm stepdown which will allow weapon mounting with use of A.R.M.S. Throw Lever Scope Rings and also features an integrated lens retainer removal tool. Removable belt clip that acts as a solid stand to prevent rollover when the light in layed on its side. Weighs 11 oz. Waterproof. Use (2) 123 series 3-volt Lithium batteries or (1) 6-volt Lithium battery stick. 1 hour of run time.