... , oil and smoke pumping machine, refrigerator, video, massager, fan, light etc. Technical Specifications-1indicationstatusFAULTlamp onOverload, ... onInverter works at city power modeBUZZEROverload , low battery , or inverter failure Technical Specifications-2Power ... 20AMax 30AGeneral ProtectionOutput short, Over voltage, Low voltage, Low battery voltage, Surge protectionOverload Protection100-120% ...