... certificate,ISO9001:2000 2.Lifelong 20 years 3.3-phase PM 4.fiber glass reinforced Wind turbine has high efficiency, credible performance ... ) Suggest battery voltage: DC: 24V, 48V, 96V, 192V, 220V, 360V 4)Start wind speed: 3m/s 5) Servicesa) ISO9001 quality control ...