re: Permanently installed LED "Christmas" lights.

quote:

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At this point I’m just trying to figure out if it’s easier to run power to the very end or put the 2nd psu there.

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I remember reading a weird thing about running an additional ground to tie each PSU together, so it seems like it would be easier to piggyback a single pair of wires along the whole run, because you’ll have to run an additional ground from PSU to PSU anyway, so it works out to basically the same for you I think (though you could run a single wire instead of a pair, but that’s a dumb thing to have lying around anyway).