Feature: 1. These wind turbine accessories are made of alloy steel and plastic, high temperature resistance, and good environmental adaptability. 2. After installation, the wind turbine is lantern vertical axes type, which reduces the energy consumption when the wind wheel is facing the wind. 3. The external rotor motor design can effectively reduce wind resistance, ensure a good power generation rate, and improve wind energy utilization. 4. Suitable for home, ship, surveillance, street lighting and more solar and wind power hybrid systems. 5. 12V/24V/48V 3 styles to choose from, you can choose the right one according to your needs. Specification: Item Type: Wind Turbine Set 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 Wrench1 x Controller Note: 1. When assembling, please place the generator, do not drop, knock, or touch, otherwise it will 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 the product will be burnt in severe cases.3. After assembling, first confirm whether each screw is fixed well before using.