monika3 years ago000How can you connect the cooler if there is no cigarette lighter? Is there a USB plug?Show in original language (German)daniel.hacki3 years ago000 Helpful answerNo, unfortunately not, it only works via the cigarette lighter!Show in original language (German)Commentmike08103 years ago000There is a 220V adapter from Dometic. However, you have to buy this as wellShow in original language (German)CommentMarcus Mueller3 years ago000Dometic Coolpower EPS100Comment