Despite our criticisms, we found that there is an educational kit

The Instruction:
The manual is well written, is a very good on the extraction of wind energy and also explains some of the background art. Then it goes to the Assembly. The pictures are quite self-explanatory, and the assembly was then done by my daughter in less than an hour. The einizige drawback was the fixing of the LED. This was SO not work really well, but you're creative, and so we have also solved.

Conclusion:
The best thing about this kit was the possibility of my daughter to bring the operation of a wind turbine to generate electricity closer. And that has fully functioning, because it would soon be time to take a real wind turbine in the visits often offered a closer look at and also the interest in alternative energy was awakened it. Who would expect from a kit in this price range, to build a fully functional windmill with an albeit small utility, which you can then also operate outdoor, will be disappointed.
Unfortunately, the 4 other possible buildable models (electric car, electric tricycle, electric helicopters and electric trucks) have met with me and my daughter to no interest, since they are not useful to realize with the existing components.
But despite this criticism, we found that it is an instructive kit.

Rating:
We awarded here quite 4 of 5 wind turbines