For those who are searching hard for a reliable headlamp， we highly recommend this Nitecore HC30 XM-L2 1000lm White Light LED Headlamp with Clamp! Utilizing top grade XM-L2 LED driven at maximum power， this headlamp produces blinding bright white light up to 1000 lumens. Optimized 100° wide-angle coverage is perfect for outdoor applications. Plus， 90° rotatable head eliminates illumination dead zones. With a sturdy aluminum alloy construction， it is tough enough to resist water and impact. Don’t hesitate to get one!                                    Features            Utilize top grade XM-L2 LED driven at maximum powerProduce blinding bright white light up to 1000 lumensOptimized 100° wide-angle coverage is perfect for outdoor applicationsInnovative Precision Digital Optics Technology (PDOT) for higher reflector performance90° rotatable head eliminates illumination dead zonesAdvanced temperature regulation technology， effective cooling fansErgonomic head switch design for convenient one-hand operationTwo-way clip transforms HC30 to a handy flashlightSturdy aluminum alloy construction， waterproof and impact resistant                                                             Specifications             Brand     Nitecore    <br> Model     HC30    <br> Emitter Type      LED    <br> Bulb Quantity     1pc    <br> Battery Configuration     1 x 18650 Battery / 2 x CR123A Batteries (Not Included)    <br> Input Voltage     4.2V    <br> Power     10W    <br> Luminous Flux     1000 Lumens    <br> Switch Type     Tail Switch    <br> Charger     No    <br> Light Color     White    <br> Color     Black    <br> Dimensions     (3.86 x 0.91)" / (9.8 x 2.3)cm (L x Dia)    <br> Weight     1.45oz / 41g       <br>                                                             Package Includes            1 x Headlamp<br>1 x Clamp<br>1 x User Manual<br>