Features 1、Resistant to high temperatures, thereby ensuring the power generation rate 2、The current and voltage regulation is effective, and the wind energy utilization rate is high 3、Widely used for charging boats, terraces, cabins or mobile homes, etc., very versatile, practical and convenient, 4、The good matching characteristics of the wind wheel and the generator make the entire unit run more reliable. The external rotor AC motor design effectively reduces the drag torsion 5、Good quality alloy steel and plastic material is used by this product, durable and possess corrosion resistant 6、Wind turbine genertor provide you with stable structure, excellent performance and long service life Specification Item Type: Wind Turbine Kit Material: Alloy steel + plastic Rated Wind Speed: 12m/s Starting Wind Speed: 2m/s Safe Wind Speed: 45m/s Wind Wheel Diameter: Approx. 0.9meter / 3ft Number of Blades: 4Pcs Package List 1 x Accessories Package 4 x Blade 1 x Wind Turbine 1 x User Manual 1 x Fixed Piece 1 x Wrench 1 x Controller