... -8m/sRotor diameter2.5mBlade materialFRPSwept area8m2 Start-up wind speed3m/s Work wind speed3-24m/sRotation speed160r/minNumber of blades7Turbine weight127kg ... 8pcsService life20-25 yearsProduct Description:Our 3,000 watt vertical wind turbine can supply power for small gas stations, small toll stations ... conditioner, washing machines, TV, lighting, etc. Renewable Energy Vertical Axis Wind Turbine