Product: Keproving Mini Wind Hydroelectric Generator for Teaching Physical Power Generation Principle and DIY Science Education Experiment for DC Wind Power Generation
Brand: Keproving
Output voltage: 3V 
 Output current: 100mA
 Rated speed: 100-6000 r / min
 Material :plastic and metal
 Fan diameter:3cm/1.18in
 Note :
 Whether it is used as wind power or hydropower, it must support enough power to the fan rotation fast , then the leds can be bright.To rotate the fan ,you can blow the wind by your mouth , hair dryer or a fan.
Good choice for teaching physical DC wind power generation principle.
As the model is packaged by completely accessory sets ,you need to assemble by yourself ,just enjoy the DIY fun .
Advanced design ,high utilization rate of wind energy, no matter where the wind blows ,it can be powered by the wind.
Small size, no noise,good demonstration effect, is a very good demonstration tool for DC wind power generation and DIY science education experiment.
Great teaching tool to develop children's hands-on ability and develop interests.

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