... lack of electricity in areas. Detail DescriptionsRemark:1) System capacity:1000VAMost output power:800WOutput voltage:220V2) Working ... DVD/VCD,fan,small sound,refrigerator, microwave oven,washing machine ,printer,electrograph and so on4) System extend capacity: If ... longer working hours, it can extend battery capacity, System have external connector back chest5) Alternating current switch funtionwhen ...