DX offical video of this product: Normal 0 7.8 ? 0 2 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:????; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} http://www.youtube.com/watch?v=l0SM-tmg5DQ - Rechargeable Focus-Adjustable and Dimming LED Headlamp - Rugged aerospace-grade 6061-T6 Aluminum alloy casing - Turn the head piece of headlamp to adjust the light beam between spotlight and floodlight - Turn the button on back battery-box to dim the light beam between 100% high-power light and 20% weak light - White CREE Q5 LED with rear red LED - Brightness: 170 Lumens - Battery lifetime: 3 hours for 100% high power light - Voltage: 3.7 V - Current: 1000 mA - Power: 3.5 W - Max. Distance: 300 m - Switch function: ON/OFF (dim light from 100% power light to 20% weak light with an rear red blink LED light) - Waterproof grade: IPX-5 - Lens: PMMA lens - Great for Outdoor activities such as the mountain climbing camping hunting survival hiking latent sea etc. - Powered by 1 x rechargeable Li-ion 2200mAh/3.7V 18650 battery pack - Package includes: - 1 x H6 headlamp with battery pack - 1 x AC 100~240V power charger (US plug) - 1 x Chinese use manual