Technical parameter: Rated Capacity: 5000W AC Input Voltage: 145~275VAC/75~125VAC AC Input Frequency: 45~65hz Output Voltage: AC215~225V/AC107~113V(battery mode) Output Frequency: 50/60HZ±1%( battery mode) Output Waveform: Pure Sine Wave Efficiency: >85% Battery type: Valve regulated lead-acid battery Battery rated voltage: 48V/96V/192Vdc Self loss (no load): 0.58A(48vdc)/0.3A(96vdc) Show : LCD Maximum ac charging current: 15A Protection: Overload, short, current high and low ac input voltage protection Conversion time: <5MS The capacity of over load: Battery mode (110%~160%, maintain the 30s; over 160%, maintain 300ms then shut down) Communication port: RS-232 Working Temperature: -10~40 degree Working Humidity: 10%~90% Machine Size (L*W*H) mm: 465*245*465mm Package Size (L*W*H) mm: 530*320*530mm Gross Weight (kg): 33KG NB: THIS UNIT USES EXTERNAL BATTERIES ONLY, IT DOES NOT COME WITH BATTERIES INSIDE. Features: 1. Sine wave output, apply to television, refrigerator, induction cooker, electric fan; 2. Household appliances like microwave, air conditioner and so on; 3. Microcomputer control technique with high performance; 4. Wide adjustable range for input voltage, the high degree of accuracy for output, automatically voltage regulation; 5. It has high reliability with a built-in protection function for overload, short circuit,over-voltage,under-voltage, and overheats; 6. LED display and digital LCD display, clear and explicit, easier and convenient to observe the equipment status; 7. The power-on time could vary according to various requirement; 8. Valve-regulated lead-acid battery, intelligent battery management, overcharge, and over-discharge protection with a long life span. NB: THIS UNIT USES EXTERNAL BATTERIES ONLY, IT DOES NOT COME WITH BATTERIES INSIDE.