Nitecore HC90 900 Lumen CREE XM-L2 T6 LED USB rechargeable headlamp with Genuine Nitecore NL189 18650 3400mAh Li-ion rechargeable battery, Two EdisonBright CR123A Lithium Batteries
Nitecore HC90 is a USB rechargeable extremely bright lightweight headlamp. Operates on one rechargeable 18650 battery or 2 X CR123A Lithium batteries.Features Purpose-designed for hiking, climbing, camping and general outdoor recreation True variable output with a unique 'infinitely variable' sliding switch USB rechargeable / powered by 1 x 18650 lithium-ion battery Aluminum "unibody" construction is highly rugged and provides excellent cooling performance. High-efficiency circuit provides up to 200 hours of runtime on low Third generation sliding control switch (patented) permits rapid and accurate mode switching / brightness adjustment with the use of one hand. Intelligent li-ion battery charging circuit (integrated micro-USB charging port) A custom catoptrics-based system produces an extremely wide 100beam angle Unique light housing can be rotated wide range preventing illumination dead zones. Integrated temperature sensor and intelligent temperature control ensure stable and safe operation. High-efficiency regulation circuit provides unwavering output as battery life diminishes Toughened ultra-clear mineral glass with anti-reflective coating Constructed from aero-grade aluminum alloy Rugged HAIII military grade hard-anodized finish Comfortable chafe-free and breathable nylon headband Waterproof in accordance with IPX-8 (two meters submersible) Impact resistant to 1.5 meters Tail stand capabilityDimensionsLength: 90mm (3.39")Head Size: 70mm  22mm (1.26")Weight: 135g (4.59oz)(without battery)AccessoriesUSB cable, spare port plug and O-ringThis bundle include Nitecore NL189 18650 3400mAh rechargeable Li-ion battery & 2 X EdisonBright CR123A lithium batteries