ShangHai Roco Magnetics CO., Ltd, which is located in BaoShan urban industry park of ShangHai with the most favorable location,The newly developed product is Rare Earth Permanent Magnet Generator. Which has the following features: 1, Compact Structure,Small Bulk,The weight is 30% lighter than the regular. 2, Without Field Winding , Exciter, AVR,brush.etc. High reliability.Maintenance-free, without Electromagnetism disturn.simply to operate.its the main advantage than the regular generator.