Keproving Mini Vertical Axis Type Wind Turbine Generator Model for Teaching Physical Power Generation Principle and DIY Science Education Experiment

Blades are VERY fragile. It’s nerve wracking to transport the turbine because the blades are so fragile. the blades don’t come apart easily so it’s not an option to remove the blades during transport. Turbine also does not spin very well in natural wind. It will spin if you point a blow dryer on it at just the right angle.

Works prefectly. Even wired them in series, parallel and series-parallel. Performed flawlessly.

It never spins when wind blowing. I think it only spins while thunderstorms or hurricane coming. Junk item.

Very good. Fan is silly and inefficient. Laughable fan actually with one side resisting wind force. Still works enough for a demo. You can make a better pinwheel type of fan.

Very very difficult to rotate not practical