I have grown autos before but i want a good light that i can fit a couple plants under.the price doesnt really matter their only 25 dollars apart but i was wondering if i would have good yields with a 6 bulb which puts out 30,000 lumens thats 6,000 for each auto or do i need an 8 bulb thats 40,000 lumens which would be 8,000 lumens for each auto? Thank you very much for your time and i really appreciate any help or information especially if you used them before. Thank you very much.