i'm using a cheap glixer in my 2x2x3. had to attach it directly to the top supports to get it high enough. think it'd be perfect for a 2x2x4. i've got a bunch of mars hydro, but generally a bit much for a small tent. you can check out the ts1000 though, or these if you nasty
I like info dumps 😁 whenever I do things I do them 100% and want to know everything so this was very helpful. https://www.amazon.com/gp/aw/d/B07HFC7HV5?ref=ppx_pt2_mob_b_prod_image I ended up buying one of these. I think it's overkill for my setup though. I have a 6 tier rack with small 10x20" shelves so I was looking for multiple quality lights but I'm not finding any that's not too big for my space. I already have these which work great for my microgreens but they don't seem to be cutting for my other plant starts. https://www.amazon.com/Barrina-Equivalent-Bright-Spectrum-Sunlight/dp/B082ZL1Q63/ref=mp_s_a_1_4?crid=336O4DZ5U4ENA&keywords=2ft+grow+light&qid=1677719057&sprefix=2ft+%2Caps%2C130&sr=8-4 Same for the one I pictured in this post. It works great for starts but struggles to grow anything past 2 inches.