You might want to post this over on the Orchid forum. People over there use light set ups.

I’d be interested in seeing photos of setups.

Here is a simple setup I have now at a corner of the sunroom. The LED red and blue light panels are hung over the top on a wooden rod across the cart. The plants are doing well under these light panels. I decided not to add 2 light panels underneath the top shelf since the blooming sunpatients on the bottom shelf get plenty of sunlight from the glass door.

Here's my set-up; this is an old pic but you get the idea:

Update: I managed to find smaller quantities of both warm and cool T12 fluoro's from some off-beat sellers on A*n. Put them in yesterday and I can tell they are generating more heat than the original bulbs I had in there, which is a good thing. They seem brighter, too, but not sure if it just looks different because of the color of the light emitted. Hopefully the seedlings will grow better this year.

ETA: When I say "better", I mean beefier root growth. Top growth was ok but root growth was skimpy under these Gro Lux bulbs.

I kind of ran into the same problem with my T8 setup, but bought some LED shoplights and they work great. I'm still using the T8 though (because I expanded of course, not just replaced) and was considering replacing the fluor bulbs with fixture compatible LEDs , so @OutsidePlaying if you do find that info on the replacements I'd appreciate it.