This 600w wind turbine uses a 5-blade design with smart blade aerodynamics braking and electromagnetic speed limitation function. Patented aerofoil 5 blades design with true symmetrical and twisted aerodynamic feature which ensures rotor capture maximum power from wind and operates in amazingly low noise and minimal vibration. Our 600w wind turbine with minimal vibration and low noise could be mounted on rooftop safely and its operation won't affect resident.