1.CREE led with lifespan of 50.000hours;2.Highly efficient reflector for flood beam and focused beam;3.Made of aircraft-grade aluminum;4.Hard-anodized finish/Black;5.Click on/offpush button tail cap switch.6.Anti-roll,slip-resistant body design.7.Waterproof to IPX-6 standard;8.Accessories: holster, lanyard,two spare o-rings and spare switch. ModeVoltagePower/BatteryLumen(Max)Runtime(Max)Distance(Max)One(High)3-18V1*18650/2*16340/CR123A150200min200mRemark: Two/Three/Five mode are also available. Measurements: Length:185.5mm Head Diameter: 47.5mm Tube Diameter: 25.5mm Tail Diameter: 28mm Weight: 225/260g Package: Neutral Packing/White box.