Harbor Branch Foundation has been working on the development of Xenon short-arc light for use in submersible based oceanographic research. This light differs from most underwater lights in that it closely matches the color temperature of sunlight (approximately

Kelvin). The light is used aboard both of the JOHNSON-SEA-LINK submersibles to study the deep ocean environment. The arc light helps scientists determine true colors of organisms in their natural environment. It has been successfully used at depths to 2000 feet; and has helped the submersible pilots locate a number of significant research sites.