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Stirlingkit
Solar Power Powered Toy Mini PumpJack Car Diffuser
- Regular Price
- $4.39
- Sale Price
- $4.39
- Regular Price
-
- Unit Price
- per
These motors run on light alone. Place one on a sunny windowsill and it starts to spin, with the rotor floating on magnets so there's almost no friction to slow it down.
They're quiet, need no batteries and make a calm, fascinating desk piece for anyone interested in science or renewable energy.