Specification:                Product name:       Nitecore HC30 CREE XM-L2 U2 Headlamp           Brand:       Nitecore           Model:       HC30           Emitter Brand       CREE           Emitter Type:       XM-L2 LED           Light Color:       Neutral white           Material:       Hard-anodlized Aluminum alloy           Mode:       Turbo、high、mid、low、lower    +Location Beacon、 SOS、 Strobe           Lumens:       1000LM、400LM、210LM、70LM、1LM           Runtime:       1h、3h30min、7h15min、15h15min、330h           Battery Configurations:       1 x 18650\/2 x CR123 battery (not included)           Switch Type:       clicky           Switch Location:       on the top of the flashlight           Impact Resistant       1.5 meters           Max Output:       1000lumens (max)           Range:       162 meters (max)           Peak Beam Intensity:       6600cd           Reflector:       Smoothe reflector           Waterproof:       IPX-8 waterproof 2meters           Color:       Black           Weight:       40.3 g without battery           Size:       98mm x 24.2mm(length x head diameter)   Features:--Compact full-metal body provides incompareable portability--High efficiency circuit board provides up to 330hous runtime--Five brightness levels and three concealed special modes to select from direct access to turbo mode.--Integrated "Precision Digital Optics Technology" provides extreme reflector performance.--Feturing Advanced Temperature Regulation(ART) technology to dynamically adjust output performance based on its internal temperature.--Special head switch for quick opeartion with one hand.--Reverse polarity protection prevents damage from incorrectly inserted batteries.--Toughend ultra-clear mineral glass with anti-reflective coating--Robust HALL millitary grade hard-anodized--Comfortable chafe-free and breathable nylon headband--Tail-stand capabilityPackage included:1 x Nitecore HC30 CREE XM-L2 U2 Headlamp1 x O-rings1 x Spare switch cover1 x ClipHere we have English Manual if you received a Chinese Manual you can look at this link:http:\/\/flashlight.nitecore.com.media4studio.com\/html\/uploads\/ueditor\/image\/product\/HC30\/HC30_UM_EN.pdf?498509