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2 comments

  • Admin
    08/09/2017 at 11:32

    Hello! Most likely a black wire with a white stripe is a plus, and a completely black wire is a minus. But sometimes Chinese products may have the other way around, so it’s better to check with a tester.

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  • Vladimir
    11/05/2018 at 06:39

    Is this a plus or minus? With dashes

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