This solar cell can be easily connected to the included powerful solar motor thanks to the pre-soldered crocodile clip cables. This allows for quick assembly of simple solar models or conducting experiments with minimal effort. The motor and solar cell are perfectly matched to each other. This high-quality combination of solar cell and motor is suitable for solar models such as solar fans, ship drives, experimentation, and much more. The motor shaft has a diameter of 2 mm and is 10 mm long, making it easy to connect adapters or, for example, propellers and gears with a 2 mm fitting. Cable length at the solar cell: approximately 25 cm, cable color: red (+) / black (-). Solar motor with approximately 15 cm cable. The set is ideal for schools (STEM/STEAM), workshops, crafting, and experimentation.