If that's all you need and have the environment the way you need it,leave you be
to be able to fill a whole room is costly and most likely have fires, I have seen a few from others that showed me their pics, I grow 4 at the most b/c I harvest plenty, and 1 batch can last me 6 months non-stop when summer was here I rented out a house that had a privacy fence I asked the tenants if I can grow some photos out there and I did, not including the NL I had growing in the tent, 18 plants, for sale or personal, that's a lot of plants I noticed a lot are growing more plants b/c it's not enough, then you add more plants, I learned growing indoors and learned how to get the most out of your yields,