Features:1. Low wind speed start-up(2m/s), high wind power utilization, light,cute, low vibration.2. Human-friendly design,easy to install and maintain.4. Blades using reinforced glass fiber, helped with optimized structure and aerodynamic shape, it enhanced wind power coefficient and power generating capacity.5. Using patented permanent magnet generator and special stator, it effectively reduces torque resistance and guarantees the stability . Specifications:Color: WhiteNumber of blades: 5Rated voltage:12/24VBlade length: 58cmRated power: 400WTop net weight: 6.8kgWheel diameter: 1.3mRated wind speed: 13m/sSurvival wind speed: 50m/sStart-up wind speed: 2.0m/sBlades material: Nylon fiberGenerator case: Casting aluminum alloyControl system: Electromagnet/wind wheel yawSpeed regulation: Automatically adjust windward directionGenerator: Three phase permanent magnet ac synchronous generatorWorking temperature: -40в„ѓ-80в„ѓPackage size: 75x28x19cm Packaged included:1X Wind turbine generator5X Rotor blades1X User manual1X Mounting accessories bag