Anonymous2 years ago000Can you tell me the polarity of the output plug, please? I need "DC Plug Polarity: inner Positive(+), outer Negative(-)" so inside positive and outside negative.Show in original language (French)1 answerAdrian Betschart2 years ago000 Helpful answerThe polarity of the plug is: Inside is positive (+) and outside is negative (-). So that's what you're looking for.Show in original language (German)