So I have 200w of CFL lighting going on 4 plants to cover approx. 3 square feet. Question: Would my yield increase if I used a 150w HPS instead to flower? Also, if I went up to a 250w hps would that double my yield for just another 100 watts? Say 6 square feet instead of 3. And how much power do all these different lights actually pull when you include the ballast?