The NitecoreEA41 XM-L2 U2 1020lm Strong Light Waterproof LED Flashlight provides reliable lighting whenever you need it! The top grade XM-L2 LED it uses gives off blinding bright white light up to 1020 lumens， illuminating up to 335 meters away. Meanwhile， it adopts second generation crystal coating technology for ultimate light reflection. Built with a waterproof housing made of aero grade aluminum alloy， this flashlight is perfect for hiking， camping， cycling and other outdoor adventures. Don’t hesitate to get one!                                    Features             Utilize top grade XM-L2 LED<br> Give off 1020-lumen white light， illuminating up to 335 meters away<br> Adopt second generation crystal coating technology for ultimate light reflection<br> Waterproof， impact-resistant housing made of aero grade aluminum alloy<br> Perfect for hiking， camping， cycling and other outdoor adventures<br> High efficiency circuit board， up to 400 hours continuous runtime<br> Creative dual-switch design offers easy access to all functions<br> Built with a battery indicator and reversed polarity protection circuit<br> Eight brightness modes for you to select from<br> Stainless steel ring adds extra protection<br> Lightweight， easy to carry   <br>                                                            Specifications            Light Source    LED    <br>Power    10 W    <br>Color Temperature    6000 ℉    <br>Working Temperature    33 °C    <br>Tripod Length    0 cm    <br>Life Span    50000 hour    <br>Light Color    White    <br>Light Range    335 m    <br>Luminous Flux    1020 LM    <br>Current    2 A    <br>Power Supply    4 x AA battery(not included)    <br>Working Time    400 hour    <br>Charging Mode    The Charger to Charge    <br>Lighting Distance    335 m    <br>Weight    151g / 5.33oz    <br>Material    Aluminium Material    <br>Voltage    4.2 V    <br>Color    Black    <br>Dimensions    (4.61 x 1.61)" / (11.7 x 4.1)cm (W x Dia.)    <br>                                                            Package Includes            1 x Flashlight1 x Holster1 x Lanyard1 x Spare O-rings