Good teaching tool of wind power generating. It can also be used to make science models. It can be used as a model water-wind-light complementary grid- generation system. Need yourself to assemble the wind turbine generator model kits, you can enjoy the fun of DIY. Features - Color: Assorted color. - Material: Plastic. - Size: 13.70X1.60X1.60cm/5.38X0.63X0.63in - Output voltage: 0.01-15V. - Output current: 0.001-0.2A. - Wind speed: /s. - Rated turning speed: . - As the model is packaged with 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 - Output terminals are easy for LED installation. Just Package list: 1 x Wind Generator