Features 1、High wind energy utilization, small size, beautiful appearance, and low operating vibration. 2、External rotor AC motor, which can effectively reduce the resistance torsion of the generator. 3、Making the wind wheel and the generator better match, and improve the stability of the unit. 4、Using high‑quality alloy steel + plastic materials, ,with good toughness and high strength. 5、It is widely used for charging on boats, terraces, cabins or mobile homes. Specification Item Type: Wind Turbines Kit Material: Alloy Steel + Plastic Color: White Rated Wind Speed: 12m/s Starting Wind Speed: 2m/s Safe Wind Speed: 45m/s Wind Wheel Diameter: Approx.0.9m / 2.95ft Number of Blades: 5 Package List 1 x Bag of Fastening Kit 5 x Blades 1 x Wind Generator 1 x Instruction Manual 1 x Fixed Sheet 1 x Gasket 1 x Wrench 1 x Controller