... 4.Long life,easy to maintenance The low RPM vertical wind turbine PMG rated power:300W80RPM,500W80RPM,1KW50RPM, ... series:1.Vertical axis wind turbine:300W,500W,1KW,2KW,3KW,5KW2.Vertical low RPM wind turbine generator:300W80RPM,500W80RPM,1KW50RPM ... ,2KW50RPM,3KW50RPM,5KW50RPM,10KW50RPM3.Horizontal axis wind turbine:300W,500W, ...