Tested safety is important
When purchasing, you should make sure that it is a GS certified inverter. It should also have a thermal overload cut-off, automatic reverse polarity protection and an electronic overload and short-circuit protection. These serve the safety of the voltage transformer.
Additional equipment features
In most versions, inverters have a over- and undervoltage cut-off. Lightweight inverters are not only suitable for use on boats, but also for camping or in the garden shed when no conventional power source is available. A charging converter generates an alternating voltage so that normal appliances can be operated on it. The variety of connections for electrical appliances is much greater with voltage converters. They should never be missing on long journeys.