Use the hand crank to generate electricity and light the three LEDs! Learn about polarity and see what happens when you turn the crank in either direction.
- Online curriculum included.
- 7 total pieces
- Build 7 projects
- Includes three (3) LEDs - Heart (red), Star (blue), and Blue/Red Bi-Directional
- An excellent introduction to Green Energy
- Compatible with other toy brick sets
- No batteries required!
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