This torch uses of a T6 LED, producing very bright beam of light.Output bright can come to about 3000 LumenInternal wiring applies the highly efficient booster circuit and can utilize the batteries in the largest extentThe body of this flashlight is built of aircraft-grade aluminum alloy, and it has a very solid construction.Hard-Anodized finish; Anti-abrasive, free-scratch, shock-proof.Ultra-deep trench structures Skid-proof effect is excellent when divingThis flashlight uses a textured reflector(rather than a smooth reflector). The beam from a textured reflector is more even, with a more gradual transition between the hot spot (the center of the beam) and the spill (the periphery of the beam). Specifications: Emitter Type: T6/L2(Shining White color)Light Color: WhiteLED Quantity: 1Battery Configurations: 2x18650 3.7v(not included) Voltage Input: 8.4vSwitch Type: PushLED Lifespan: 100,000 hoursMaterial :AluminumLens: Coated Glass LensReflector: Aluminum textured reflectorCasing Color: BlackWeight: 280g