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I would appreciate any suggestions or comments.

I am setting up an attic grow. My biggest problem at the moment is height. From the floor to the light is only 4’4”. I am going to air cool my lamps. I also am using a light mover in order to keep my plants as close to the light as possible. At this point I need to decide on the type of...

Also, if you can, exhaust into a different room than your intake. You can probably cut a hole and vent into the sealing. Definitely get rid of the humidifier

I would be blowing into 3 600W HPS sealed hoods

In the winter can I blow freezing cold air into my lamps? Or will this cause a POP?

Any other thoughts?

Do you have your ventilation figured out? This is probably going to be your biggest problem, mainly because of the heat.

I knew sealed air cooled lights would let you move the light closer but fuck 4” wow. This is great news for me. If this is the case I have another 6” of growth!! How cold of air can I draw in to cool my lamps? In the winter will I be able to draw air from outside?

I have already bought it. I liked the idea because I could get more coverage of intense light. I also need as much height as I can get. I should be able to keep my canopy a little closer to the light with the mover. I could set it up so it only moves 2 feet or so. Anyone think this is a...

Any thoughts? I am most concerned with my light mover and how I should set it up. How far away from each end should I let my light travel?

I plan on setting up a light mover for my flowering area. I have 3 600W air cooled HPS’s. My flowering area is 3’- x 13’-15’. I am going to put all three lights on my track. Any suggestions on how long I should make it (between 13 and 15 feet)? How far apart should I space the bulbs? I was...

You think they are going to finish taller than 20” even if I started flowering at 6” or under? I hope not as 20” is the tallest they will be able to get. If that is the case I will have to grow less plants and LST.

Thanks for the replies. This is my second real grow. My fist was highly successful. It was also a hydro drip(but with less than ideal air flow and high temps). I have definitely done my reading and shouldn’t have a hard time dialing it in. I also understand that strain is going to be a big...

I am setting up a hydro grow with a drip system. I will have a 600W HPS light over each 3x3’ table. My environment should be next to perfect with C02 generator and AC. I am going to have to finish my plants at about 20” tall. With this kind of a setup can I expect .5 – 1 gram per watt? Or...

With a setup like this can I still expect to get .5-1 gram per watt?

I am setting up a new grow. I will have to finish my plants at around 20”. I will have a 600W HPS light over each 3x3’ tray. My room will have a co2 generator and AC for ideal temp. I am going to use hydro with a drip system. I plan on each plant taking up one sq foot (for a total of 9...

Thats what I thought thanks

I am setting up a new grow. Height control is going to be my biggest problem. I am going to have to finish my plants around 18-20”. I will be taking cuttings from mother plants so I will be able to flower right after they take root. Will I be able to finish a sativa plant? I would start to...

What are the dimensions of the closet? My fist suggestion is to paint it flat white. Flat white paint is almost as good as mylar. The hardest part in closet grows is ventilation. Have you got this figured out? If you aren’t able to get good ventilation you should chose the 250W HPS. Your...

I agree with 0849. Use CFL to supplement your HPS. LEDs are junk. Add as many CFLs as you can, or add another HPS, or both. Rotate your plants regularly for even light distribution.