Just the adults..
I knew to keep the seedlings at the corner, for the introduction. But, the previous panel must have been a LOT less PAR/PPFD because the girls were shrinking from the initial blast.
As soon as I reduced the output to around 50%, they perked back up, and I just put them at 100%, an hour ago, and they're acclimated, I reckon.
The difference in the color temp of the T4-2100 is WAY different than a typical panel. It really looks more like sunlight in a desert, just a touch of jaundice yellow tint, but "hard" light!
Certainly does and I think it's just the initial shock of wtf there's so much light that they will adjust over time.... A little stress, but as you've stated they all seem to have stabled out.