... is high in strong wind, controller can load the wind turbine automatically, and charging the battery with low current.4.The wind turbine brake automatically when ... series:1.Vertical axis wind turbine:300W,600W,1KW,2KW,3KW,5KW,10KW2.Horizontal axis wind turbine:300W,600W,1KW,2KW,3KW,5KW,10KW,20KW,30KW ...