... , no noise. 3) Low start wind speed (1 m / s wind speed start), anti-typhoon, anti-corrosion ... DC output, without risk of electric shock. 7) The life of more than 20 years, the ... levitation technology, no mechanical friction, long life 3000w wind turbine parameters Rated Power: 3000W Dimensions (height / ... Material: Aluminum Number of blades: 3 Minimum start wind speed: 1m / s Minimum power speed: 2. ...