6000 Series machined aircraft aluminum with black anodized finish. Switch housing: Impact and chemical resistant engineered polymer. High temperature, shock mounted, impact resistant Borofloat glass. White LED produces 500 lumens; 5,000 candela; 141m beam; runs 1.5 hours; user enabled strobe function.Specifications and Features:Attachment Method: Picatinny RailBatteries Included: YesBattery Type: CR123ABattery: CR123Beam Distance: 462 FeetBulb Color: WhiteBulb Type: LEDLight Output High: 500 LumensMaterial: PolymerProduct Model: TLR-7 Sub 1913 RailsRechargeable: NoRun Time High: 90 MinutesStrobe: No