I know I am going to appear particularly thick with this question but electrics just leave me with a bruised mind! We have a 22 plate MH on a Ducato chassis. On the dashboard to the lower left of the central screen are two cigarette lighter type sockets, side by side. The left one is marked 12v and the right hand one, according to the FIAT manual, is 220v. Does this mean the RH one is only powered when on EHU? Generally, what sort of appliance would run off a cigarette lighter style plug (is there a more modern name for these) which is not 12v?