This type of portable generator invariably uses inverter technology. The models are much quieter than their traditional counterparts because their smaller engines are usually, but not always, enclosed in a suitcase-style housing - the heavier, and more powerful, WEN GN400
is, by comparison, an example that uses an Open Frame structure. Very few have a dual fuel capability.
They are purposely designed to be more compact and light for the maximum in portability and ease of use. This is what people usually want so that they can really enhance their enjoyment of recreational activities, be it for camping or tailgating. But others also buy them for a bit of basic and essential power when the grid goes down, as well as for other emergencies.