Just like their larger siblings, portable generators offer built-in inverters to power sensitive electronics, dual-fuel functionality, and safety features like carbon monoxide (CO) shut-off. This is also a closed-frame inverter generator, which tends to be quieter; the iQ3800 is one of the quietest generators we’ve tested this size. Essentially, anything with a screen or any smart device would be best powered using an inverter generator like the iQ3800. Like most generators, inverter generators provide 120/240 volts of AC power. Fuel OptionsTrevor RaabGasoline Most portable generators are powered by gasoline, the most commonly available fuel.