600-600-600 VS. 400-600-400 IN COOL TUBE

[CLOSET KING]

you would probably be fine running 3 400's but dont think you are ventilating your lights enough, you light system is sealed from the grow room right both intake and exhuast exits the grow room?
more powerful ventilation system on the lights would probably help alot more.
interesting grow room do you have plans on making an 8 tier one in the future?

THANKS YES THE LIGHTS ARE SEALED A NDVENTED OUT MY CHIMMINE TO THE 4TH FLOOR ROOF NEXT TIME I'LL TRY 2 6" CANS THANKS FOR THE HELP