Aluminum CREE MCEFlashlight VP-HR818 Light Source: Cree MCE lumens/run time: 800lumen Size of Torch: Head Diameter:53mm, Total Length:235mm Net Weight(battery excluded):385g Durable aluminum alloy casing The newest aluminum alloy reflector Water Resistant , Shock Resistant Tail button switch 3 Lever Switch( 100%, 50%, 20%) Powersources:2*18650