... subjected to the variation of location and illumination condition. PV Power(Wp)Output VoltageMaintenance-free Acid-lead BatteryControllerInverter(Max.)Working TimeContinuously ... ,radio,fan,computer,DVD 2160W 220V 600Ah/48V 45A/48V 2000w Pure Sine Wave 5~7 hrs per day 1~2 ... to the variation of location and illumination condition. 50W~2160W Portable solar home system, solar home kit, solar power system