This kit includes two styles of wind turbine blades and a gearbox with three different gear ratios for experimenting. You can adjust the angle and number of wind turbine blades to make best use of the wind, to make the LED light up brightly, and to charge the rechargeable battery as fast as possible. Let’s explore this amazing, free source of renewable energy!
● Build 2 giant wind turbines of almost 1 meter high!
● The energy generated by wind can turn a diode on or recharge a battery!
● Full color 40-page instruction manual with explanation of concept and models.
● Requires 1 AA/LR06 battery or a rechargeable battery – not included.