... .High efficiency 4.Long life,easy to maintenance The low RPM vertical wind turbine PMG rated power:300W80RPM,500W80RPM,1KW50RPM,2KW50RPM,3KW50RPM,5KW50RPM,10KW50RPMrated ... following four series:1.Vertical axis wind turbine:300W,500W,1KW,2KW,3KW,5KW2.Vertical low RPM wind turbine generator:300W80RPM,500W80RPM,1KW50RPM,2KW50RPM,3KW50RPM ...