H-500 Horizon Fuel CellHorizons H 500 PEM Fuel Cell System is a very light and compact system. It is applicable for various small projects with its 500 Watt air fed air cooled, hydrogen fuel cell. The biggest advance of H 100 fuel cell is being air cooled; meaning that there is no need for water cooling systems with complex structures. Our standard systems are modular, simple, efficient, and feature some of the highest power densities available in the world opening new