crvz
Team RC
It appears to be stranded THHN wire. Soldering the ends isn't really that labor intensive and that wire pulls through conduit very easily. If I were doing it, I would do it the same way.
Ah, thanks. I've a lot of experience with soldering, but I was intimidated with the number of outlets and cords I'm looking at (probably on the order of 60). You prefer this wire just due to flexibility, yes?