at least i found a current thread that is addressing my same questions. although i'm still totally f*(*&^g confused. is it easy enough to install a potentiometer on the xlg? i am inclined to go with the HLG-240 simply for ease of use, but not feeling super thrilled about paying an extra $40 for...
Just busting your chops. :) I have obsessed over every ridiculous detail of my setup. I fall asleep at night problem solving and figuring out details and workarounds for every thing I could potentially encounter. It's a little bit obsessive, I will admit, but my seedlings are only two weeks old...