The HydraCell UT-LT Utility Lantern is a revolutionary LED lantern & charger powered by our proprietary HydraCell fuel cell. Three bright long-life LED provides light to illuminate small rooms, camping areas or any place where bright light is needed away from wired electrical grids. The Beacon also has a single 2.6 mm DC out port for powering small DC lights & devices. The replaceable HydraCell fuel cell can be stored prior to first use for 25+ years and is activated instantly to full capacity simply by dipping in water. Once activated the cell will operate continuously under load, requiring only periodic re-hydration. After 300+ hours, depending on load & usage, a new or refurbished HydraCell fuel cell immediately restores to a like-new condition. Can be used as the base for the UT Power Pack and Downlight models.