Help question on lighting needed

SublimeOne

Active Member
i have a 1.2 metre X 1.2 metre X 2.0 metre tent. i have 1 X 400w at the mo, i am thinking of getting one more light, SO SHALL I GET A 250W TOTAL=650W
OR
A 400W TOTAL= 800W
OR A 600W TOTAL 1000W
PLEASE HELP ME PEOPLE I WANT THE OPTIMUM LEVEL OF LIGHT NOT MORE THAN NEEDED SO HOW MUCH WILL GROW SOME KICK ASS PLANTS IN A 1.2 SQM AREA???
 
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