I'm running 4x 120 in a straight config for 2x4 space.
Looking to up my ppf not so concerned on power bill now.
And of course I can then use 120s to supplement if I I chose and I have a 120 driver I can use for clone/seed too (could even run a single panel in the middle of a triple slate (or I can buy single syncs and hang 4ft apart.
I've got 2 kingbrite 240w quantum boards in a similar space. I use it for vegging usually but sometimes mother plants. I've never cranked the light in such a small space beyond 40% - 50%. It's a lot more light than you need in your space. It only makes sense if you're not intending to crank them and you're more concerned about consistent lighting all the way across the area. I had mine on a shelf unused so it was putting to use something I had already paid for.
Bspecs are heavy on blue light. It's a veg light and not intended for flower. Is this what you're looking for? It's a costly mistake if you're looking for flower lights.