The assembly was still relatively easy. The fun begins at but unfortunately at the point where it can be seen at that the work has paid off. Unfortunately, the little bulb lights only for greater application of force by hand. The energy to be generated with a fan, nowhere near enough to the wheel with aggregate and consumers to set in motion. Conclusion: It is a toy which frustrated and gives the impression that wind power generation is not working properly. I'll send the crap back!