Investors or converters electric current of 12 VDC to 220 VAC, for use in cars that have electric burner or terminals (depending on model). This range of converters are connected to the car cigarette lighter, and provide the user with one or more plugs 220 VAC, ie those for connecting small electrical low power we want to use in automobile. This device isbasically a classic Universal apdatador devices we use every day: mobile phone chargers, laptops, electric shaver, etc.. Forget having an adapter/charger for each device. Model in which the 220 VAC output waveform is corrected. These models do not allow wave rectified devices requiring high peak loads (micro waves, refrigerators, etc.).