A powerful compact light that weighs approximately 0.6 oz (18.8 g), yet has a maximum output of 500 lumens. USB rechargeable, so you can power it from a mobile battery. Demo Mode/Daily Mode: IP54 waterproof, withstands rain and shock; Updated energy saving design, 280 mAh large capacity battery, equipped with OLED monitor, battery remaining power, light, mode, and runtime display; Easy to use size and brightness for outdoor activities. Equipped with an OLED monitor to display battery remaining power, light intensity, mode, and runtime. Includes key chain parts (hard parts are used to maintain strength. Please be careful when installing. Brightness/Maximum usage time when fully charged/Irradiated distance: Turbo: 500 lumens/15 minutes/89 mHigh: 200 lumens / 45 minutes / 56 mMid: 65 lumens / 2 hours / 30 minutes / 32 mLow: 15 lumens / 8 hours / 14 m Ultral Low: 1 m / 60 m .5mm Weight: 1 8.8g Available in 2 colors: black and gray. [Free Shipping Letter Pack Light] We are an authorized reseller of NITECORE company. ·【2 Years Warranty】 (Applicable to normal failures when used)