The Fenix E05R Keychain Flashlight is a compact and robust lighting solution for hiking and camping enthusiasts. It's equipped with a Luminus SST20 Cold White LED that promises a lifespan of up to 50,000 hours, making it your reliable companion in navigating rocky streams or setting up camp after sundown. Apart from its sturdy A6061-T6 aluminum construction, the flashlight also features a high-efficiency lens with a total reflective coating to optimize illumination. Its built-in 320mAh Li-polymer battery offers a maximum runtime of 30 hours and can be conveniently recharged via a hidden micro USB port. Choose from four brightness levels including Burst mode for customized lighting.