I am also converting my tree from 5v strip to to 12v strings that was my motivation for the original purchase. My 5v 400w meanwell was over $400 NZ and a 12v 1200w HP (2nd hand) was well under $100. I checked out the PS model number and breakout board for compatibility, I'm not a guru on the electronics so I rely on the sellers recommendations some do seem to be able to be used across a wide range though.Just looking at them now.
Would I be right in assuming any of these HP power supplies prefixed with DPS takes the same breakout boards ?
These power supplies look like a winner, even used if I got a spare it should still be pretty good value.
Looking like my mega tree will be 12v one now.