How does a fuel cell work and how does it generate hydrogen? The Fuel Cell Kit brings this technology of the future directly into the classroom and provides answers to these and other questions! With the fuel cell and the additional solar module, even more fascinating and instructive models can be built in connection with the Oeco Energy construction set. Includes instructional activity booklet. Contains 20 components, including a reversible fuel cell with integrated hydrogen storage unit, and a solar module (1V; 400 mA). Requires either the Oeco Energy set (#520400) or Oeco Tech set (#505284) to build all models and perform all activities.