I have basically the same size room as your tent. 4 plants will fill that space nicely. By using those enormous pots you may need more room. I went with 3 gallon pots but I’m already seeing I should have gone with at least 5 gallon (live and learn). I’m not sure if you need more light or not (I’m not an expert). I can tell you that I’m using two 300w LED grow lights and it seems to be working nicely for me, check out my grow journal (Amnesia Haze Autoflower - LST ).
Good luck with your grow.