Feature: 1. The wind turbine is designed with 4 blades, with good running stability, and the rated wind speed can reach 12m/s. 2. Using high-quality alloy steel and plastic materials, resistant to high temperature and abrasion, and can ensure a good power generation rate. 3. Widely used in wind power generation systems such as ships, terraces, cabins or mobile houses. 4. The structural design of the external rotor motor can effectively reduce the wind resistance and make the entire unit run more stable and reliable. 5. The current and voltage regulation is effective, the wind energy utilization rate is high, and the entire unit runs more stable and reliable. Specification: Item Type: Wind Turbine Material: Alloy steel + plastic Rated Wind Speed: 12m/s Starting Wind Speed: 2m/s Safe Wind Speed: 45m/s Wind Wheel Diameter: Approx. 0.9m / 3ft Number of Blades: 4 . Package List: 1 x Fastening Tool Kit4 x Blade1 x Wind Turbine1 x User Manual1 x Fixed Sheet1 x Gasket1 x Wrench1 x Controller Note: 1. When assembling, please place the generator, do not drop, knock, or touch, it may damage the product and affect the 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.4. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.