for example, coming off the ssc, i always use
red for +
green for -
blue for data
The 3-wire pigtails that I have appear to be the "New Ray Wu" color setup, and the wire colors are not as listed above, or as shown in the SSC V2 instructions.
In the attached picture, I show the female end. From the key, going clockwise, it is Blue, Yellow, Brown.
I know I can get the polarity right with my own SSCs and Strings, but if I were to "loan" one of these to YOU, what would match your wiring? (of Blue, Green, Red)