Brand UItraFire Model 15XT6 Color Black Quantity 1 Material Aluminum Alloy Emitter Brand Cree LED Type XM-L Emitter BIN T6 Color BIN Cool White Number of Emitters 15 Brightness 8500 lm (manufacturer rated acutal 6000lm) Working Voltage 7.2~16.8 V Circuitry 2800 mA Number of Modes 5 Mode Arrangement Hi>Mid>Low>Fast Strobe>SOS Switch Type Reverse clicky Switch Location Tailcap Mode Memory No Runtime 2~3 hours Beam Range 250m Lens Glass Reflector Aluminum Smooth Battery Configuration 4 x 18650 or 4 x 26650 (not included) Strap Included No Clip Included No Other Feature Hard anodized Packing List 1 x Flashlight 1 x Extension Tube 4 x Battery Holders