I run 250 watts in a 2x4 and I think an upgrade is due for me. Only because I would like to add more separation between the tops of the plant to my light. I’m able to hit 850 PPFD with my light being 14-16” up. I would like to hit that with it being 24” up though.
If you are at 200 watts then I think you will be very happy going to a 300 watt fixture.
I hope this helps.