This high quality and durable solar panel was designed to produce the desired power output to power the Dr. FuelCell Reversible Fuel Cell #KO348E. This unit was originally part of the “Alternative Energy Kit” used with older PLTW sets incorporating fischertechnik. It can be used as stand-alone unit, but users must be sure it meets their specific technical requirements. Please review the specifications in detail to determine if this is right for your project.