Specification:                Product name:       Nitecore HC60 CREE XM-L2 U2 1000LM LED Headlight           Brand:       Nitecore           Model:       HC60           Emitter Brand       CREE           Emitter Type:       XM-L2 U2           Material:       HAIII military grade hard-anodized aluminum alloy           Mode:       Turbo、High、Mid、Low、Ultralow  + Location Beacon、 SOS、 Strobe           Lumens:       1000LM、420LM、210LM、38LM、1LM           Runtime:       1h、2h、30min、7h15min、25h、680h           Battery Configurations:       1 x 18650(included)\/2 x CR123 (not included)           Switch Type:       clicky           Switch Location:       body side of the flashlight           Peak Beam Intensity:       3、400cd           Impact Resistant       1.5 meters           Range:       117meters           Reflector:       SMO reflector           Color:       black           Weight:       98.8g           Size:       79mm x 18.5mm (lenght x body diameter)   Features:!#!amp!*!bull; A lightweight、 high performance headlamp!#!amp!*!bull; Purpose-designed for hiking、 climbing、 camping and general outdoor recreation!#!amp!*!bull; Utilizes a CREE XM-L2 U2 LED!#!amp!*!bull; Integrated !#!amp!*!ldquo;Precision Digital Optics Technology!#!amp!*!rdquo; provides extreme reflector performance!#!amp!*!bull; High-efficiency regulation circuit provides up to 1000 lumens of output!#!amp!*!bull; Powered by a single 18650 Li-ion or two CR123 batteries for up to 680 hours of runtime!#!amp!*!bull; Innovative single button switch is remarkably user-friendly!#!amp!*!bull; Five brightness levels and three special modes to select from!#!amp!*!bull; Memory function for brightness levels!#!amp!*!bull; Intelligent Li-ion battery charging circuit (via Micro-USB charging port)!#!amp!*!bull; A custom catoptrics-based system produces an extremely wide 100  beam angle!#!amp!*!bull; Features advanced temperature regulation (ATR) technology!#!amp!*!bull; Light housing provides 180  vertical movement to eliminate illumination dead-zones!#!amp!*!bull; Power indicator displays battery voltage (accurate to 0.1V)!#!amp!*!bull; Reverse polarity protection!#!amp!*!bull; Constructed from rugged PC material and aero-grade aluminum alloy!#!amp!*!bull; Rugged HAIII military grade hard-anodized aluminum alloy!#!amp!*!bull; Comfortable chafe-free and breathable nylon headband!#!amp!*!bull; Impact resistant to 1.5 metersPackage included:1 x Nitecore HC60 CREE XM-L2 U2 1000LM LED Headlight1 x NL189 18650 Battery1 x USB charging cable1 x o-ring1 x button cover