Clip to your gear bag or belt or throw ’em in your backpack—these Flashlights are a must-have outdoor survival tool. Lightweight, slim and weatherproof, Flashlights are constructed of rugged aerospace aluminum. O-ring sealed for protection against dirt and water. Lock-out tailcap. Mil-Spec hard-anodized finish. Optically coated, tempered Pyrex® lens. Anti-roll, 1" hexagonal bezel and a removable stainless steel pocket clip. Blue Beamfilter produces a smooth beam of blue light that is perfect for reading maps as it reduces the intensity of light output, sold separately. Diffuser converts the focused high-output beam of SUREFIRE® Flashlights to a softly diffused wide-angle beam for close-up applications, sold separately. No. 106627 Lamp Assembly produces 15 lumens of light with a run time of 90 minutes, sold separately. No. 106628 Lamp Assembly produces 25 lumens of light for 2.5 hours, sold separately. No. 106629 Lamp Assembly produces 60 lumens of light for 1.25 hours, sold separately. Replacement 3V Lithium Batteries sold separately.