Description: This torch uses of a 15x XM-L T6 LED, producing very bright beam of light. Output bright can come to above 38000 lumens [lm] Internal wiring applies the high efficient booster circuit, and can utilize the batteries in the largest extent The 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. Specifications: Emitter Type: 15x XM-L T6 LED Light Color: White LED Quantity: 15 Battery Configurations:4x18650 3.7v ( Battery is not include ) 3 switch Mode: high>middle>sos Brightness:38000 lumens LED Lifespan: 100,000 hours Material :Aluminum Lens: Coated Glass Lens Reflector: Aluminum smooth reflector Casing Color: Black Size(mm):135 x 60(bezel)/52(body) NOTE: 1. Please tighten the tail cap, otherwise it might not work because of a loose battery contact 2. Please keep the tail cap and clean, If the control panel of tail cap is dirty, it may cause the battery to a bad contact, resulting in not lit. Package includes: 1 x Single Flashlight ( Not Included Battery )