Feature: 1. Premium Conversion Rate: This wind turbine has low starting speed, low operating vibration and outstanding wind energy utilization. 2. Nylon Fiber Material: Made of nylon fiber material, the blade is waterproof, corrosion resistant and lightweight. 3. Automatic Adjustment: The rear wing is designed according to the principle of aerodynamics, which can automatically read the wind direction and position, adjust the rotor position, and capture the maximum wind energy. 4. 8 Blades: With 8 lightweight blades, the wind turbine can easily moved by the wind, and harvest wind energy easily. 5. Easy to Install: Comes with complete mounting accessories, the easy installation can be quickly completed. Specification: Item Type: Wind Turbine Rated Voltage: 24V Rated Power: 400W Maximum Power: 410W Start Wind Speed: 2.0m/s Rated Wind Speed: 13m/s Safe Wind Speed: 50m/s Diameter of Wind Wheel: Approx. 1m/3.3ft Number of Blade: 8 blade Blade Material: Nylon Fiber Generator Type: Three Phase AC Permanent Magnet Generator Braking Method: Electromagnetic Wind Direction Adjustment: Automatically Adjust the Windward Direction. Package List: 1 x Fan8 x Blade1 x Controller1 x Instruction Manual2 x Hex Wrench1 x Blade Mounting Plate1 x Iron Plate4 x large Hex Screw4 x Hex Nut8 x Large Washer4 x Large Washer Circle26 x Small Screw27 x Small Washer