Feature:1. Wind turbine parts are made of alloy steel and plastic materials, which are resistant to high temperatures and can ensure a good power generation rate.2. Using external rotor AC motor, effective current and voltage regulation, with high wind energy utilization rate.3. The motor structure design can effectively reduce the drag torsion during operation and reduce wind energy consumption.4. The good matching characteristics of the wind turbine and the generator make the entire unit run more reliable.5. The wind generator is widely used for charging boats, terraces, huts or mobile houses, etc.Specification:Item Type: Wind TurbineMaterial: Alloy steel + plasticRated Wind Speed: 12m/sStarting Wind Speed: 2m/sSafe Wind Speed: 45m/sWind Wheel Diameter: Approx. 0.9meter / 3ftNumber of Blades: 4.Package List:1 x Fastening Tool Kit4 x Blade1 x Wind Turbine1 x User Manual1 x Fixed Sheet1 x Wrench1 x ControllerNote:1. When assembling, please place the generator, do not drop, knock, or touch, otherwise it will damage the product and affect its use.2. When connecting the controller, be sure to follow the wiring diagram on the controller to wire, otherwise it will affect the normal use of the product, and in severe cases, it will burn the product.3. After assembling, first confirm whether each screw is fixed well before using.