Function: Rated power: 0.55W. Output voltage: 0.01V - 5.5V. Output current: 0.01mA - 100mA. The rated wind speed: 5.5 m/s. Rating speed: 100 - 6000 A no matter what the wind direction, this vertical wind turbine can work. Compared with the traditional horizontal wind turbine, vertical generators can work in light wind, but the power in strong wind is small. Professor's good choice for physical principles of wind power. Small size, no noise, a good demonstration effect, a very good demonstration tool for wind power and DIY science experiments. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia