How many plants

How many plants could be grown in a 1.2x1.2x2m grow tent with a 600w hps?

It depends on how you want to grow, One giant plant ScrOGed, or maybe as many as 9 smaller plants. It all depends on what you want to do, and potentially plant count limits in your state.

I hope you are planning to add ventilation and exhaust/ Or; AC.

Thanks. Dont no much at all about indoor growing but im going 2 learn as im sick of buying crap weed. It wont be overnight but this week im getting a 1.2x1.2x2m grow tent then save 4 light. Think I want 2 get a 600w hps digital ballast with cooling hood then will go from thereā€¦ what u think. Here 2 learn