Halcyon's Explorer lighting systems take advantage of the Nickel-Metal Hydride (NiMH) battery technology that emerged nearly thirty years ago from research on the storage of hydrogen for use as an alternative energy source. Several emerging battery technologies promise to offer even greater benefit with increased energy density, resulting in more power with less size and weight. However, these new technologies are not without problems. Recent explosions including injury to some divers are a testament to the careful approach incumbent upon all responsible companies. Halcyon is and has been testing new battery technology for years. However, we remain committed to providing a safe and reliable product and will not release a new technology until we are confident it represents a safe and compelling improvement over existing designs.