Inky's right...NE folk say "you's" (or "youse")...
But I'm not from around here...
I've been using "y'all" forever, even though I might not be "geographically justified" in doing so, growing-up in suburban MD, but then I can't talk like the natives do in Baltimore (and I've actually TRIED ! :o )
Well, I'll get a sample 12-volt LED and see how they work on my six-volt iron...
How about polarity senstivity? Do they care about Positive ground vs. Neg ground?
(Thinking of my old MoPars and GMCs)...