Features 1、Effective current and voltage regulation, high wind energy utilization rate is, resistant to high temperatures, thereby ensuring the power generation rate 2、Widely used for charging boats, terraces, cabins or mobile homes, etc., very versatile, practical and convenient 3、External rotor AC motor design effectively reduces the drag torsion. The good matching characteristics of the wind wheel and the generator make the entire unit run more reliable 4、The product is made of good quality alloy steel and plastic material, durable and possess corrosion resistant 5、Wind turbine kit possess stable structure, excellent generation 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: 5Pcs Package List 1 x Accessories Package 5 x Blade 1 x Wind Turbine 1 x User Manual 1 x Fixed Piece 1 x Wrench 1 x Controller