Use this kit to construct a hydrogen fuel cell car and teach the principles of fuel cell technology. Explore how the PEM (Proton Exchange Membrane) fuel cell converts the chemical energy of hydrogen and oxygen into electrical energy to power the motor. Once constructed, the car uses a steering mechanism to drive around obstacles. The 14 page user manual provides background information into fuel cell technology and full assembly instructions. Contents:. Reversible fuel cell. Car chassis and wheels. Electric motor. LED lights. Water vessels. Gas collectors. Connector cables. Syringe. Battery pack. User manual.