... 2, Meglev Technology 3, High Power Efficiency 4, CE,ISO9001,Patent 300W/600W/1KW/2KW/3KW vertical axis ... Such as scientific appearance, applied consideration, electrical engineering, power machinery, Atmospheric Science, wind tunnel experiment, magnetic levitation ... Encountered turbulenceReduce the efficiency Efficiency is not affected Power stability Change by wind directionWithout any wind ...