Specifications:Led Type: Cree XP-G (R5) LEDMax Lifespan: 50000 Hours Max Output: 100 Lumens Max Runtime: 70 Hours Adjusting Level: 3 Levels Switch Type: Push-button Tail Switch Battery Type: 1 AA Operation Mode:TurboStrobeSOSFeatures:Digitally regulated output - maintains constant brightnessMade of durable aircraft-grade aluminumPremium Type III hard-anodized anti-abrasive finishWaterproof to IPX-8 StandardAnti-roll slip-resistant body designCapable of standing up securely on a flat surface to serve as a candleToughened ultra-clear glass lens with anti-reflective coatingIn the box:HolsterLanyardSpare O-RingsRubber Switch BootPocket ClipDimensions:Length: 3.93 " / 9.98 cm Diameter: 0.84 " / 2.13 cm Weight: 1.9 oz / 53.86 g ANSIpliant Notice: The above parameters are approximate and may vary between flashlights batteries and environments. Battery Not Included