In this regard, is positive black or red?
Which color wires are positive and negative?
|Positive (of a positive grounded) circuit||N||white|
|Negative (of a positive grounded) circuit||L-||black|
|3-wire grounded DC Power System|
What color is positive in electric wire?
|Protective ground||PG||bare, green, or green-yellow|
|2-wire ungrounded DC Power System|
|Positive||L+||no recommendation (red)|
|Negative||L-||no recommendation (black)|