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Thanks for all the love guys! I'll post some up dates tomorrow on the box and plants.

I'm actually a hvacr tech for a living and just by adding a larger AC might or might not solve your problems. By adding a larger AC you are just adding more cooling capacity to the room so the AC might cool the room faster but cycle on and off even more because you only want the room so cold...

If I where you I'd run a 6 inch duct fan for each light, your loosing a lot of cfm in the y section and also keeping the air to cool your lights seprate from the air in your grow room helps a lot too. Also are you just using the AC air as an intake? Do you have passive air intakes?

Cool man thanks for the info! Was thinking it was related to stress or something. Any chance that could be fan related as in to much air flow? Thought that was more associated with twisting but just wondering?

I basicly copied this for way cheaper and added a/c. I'm currently growing out of it. I'm a certified HVACR technician and have built many grow rooms/boxes these are cool just can't see spending $6400 on one.

. Wasn't being rude. Your talking about pulling 1-2 lbs with 2 plants in 2 months when you would have to veg for at least a month to even get close to that if it where even possible at all under your conditions you listed above. Then in your next post you said something about vegging for...

Clones where just planted in happy frog medium yesterday morning around 10am. I got them from a local club and they are dark heart Atomic Northernlights cuts with nice root base. Clones where also topped when they where planted in dirt. Temps never reach over 78 only gave them a little h20 when...

Also noticed your ballest was inside your box, try moving it outside if possible anything will help with heat.

You where talking about the whole box tho right?

I coated the bottom of my box with white silicone its reflective and water proof

You have a lot of research to do..........

Ya that seems to be the way things go when building a custom box lol. I'm using a 400w and my temps inside the flower box get to 86 with ambient temp being 73deg so I insulated the inside to keep the cold air around longer in the box. Might install a small 3" axial fan at the top just to suck...

Exhaust threw the roof of your closet into your attic. Keep the 6" circle you cut out and use it to patch the hole when your done that's what I did. I also had a window AC unit mounted in the attic with a supply vent coming in as well to cool the whole inside of the closet.

Check my grow box thread out for some ideas.

Cool!! Thanks man. Feel free to ask any questions. I've turned a few closets into grow boxes too, lol

I'm a certified a/c tech where you located? You also need returns like mentioned earlier, something to actually remove the heat out of your room not just mix cool air in. Also maybe install the thermostat inside the rooms so he AC is being turned on and off by the room temps.

Here are a few attached pics of my newly built grow box. It is a/c controlled with an etc and has only two power cords, one for the a/c side and one for the lights/fan side of the box. The a/c unit plugs right into the top of the box and power to that socket is controlled by the electronic...