RATO R2500iS Inverter Generator Ideal for generating high quality pure sine wave electricity, to power your computer, air conditioner or other electrical devices. With a rated output of 2,500 watts, this quiet and lightweight generator can run for up to 5 hours on continuous 1/2 load operation. Product Details easy access maintenance door with parallel-in function, two inverter generators, with the same specifications or not, can be in parallel with each other 50Hz lightweight and low noise level USB port 80cc / 3.5hp