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9 square foot room...

the protege

Member
If you had a space 3ft 4in x 3ft 4in, what size lamp would you want to use? 400 hps or 600? I believe the rule is to shoot for 50watts/ square foot? If so, a 430 son agro bulb would put it darn near where it should be. Me and a buddy will be doing some what perpetual harvest/sea of green deal. I am planning on finding two mother plants to clone from in a seperate space.

In the 9 sq ft space, I would like to constantly have 6+ plants.

that is the plan, just making sure I have a good idea of what I should be doing. Any info would be appreciated.
 
G

Guest

If you can keep the temps down I would use the 600 watter, or use the 400 with a few large CFLS to get a fuller spectrum.
 
G

Guest

50 is what to shoot for. But can go over as long as you can take care of heat. Why not go 600.
 

the protege

Member
The grow area has concrete floors and temps never go above 73-75, not too mention, I can purchase as big a fan as I need to. I just want to make sure that there is no problem with heating.

Isn't greater than 50 watts/ sq.ft. a little excessive, or will I really see greater results per plant? If so, up to an oz+ per grow then it might be worth it.

So, a 440 cfm roughly would do the cooling for me? This thing will be vented directly out the top to a carbon scrubber.

If the 600 is really a good idea, then I need some people to re-affirm. Also, if someone could tell me an equation or what CFM's I need to keep that thing cool, I would appreciate it.
 

jojajico

Active member
Veteran
for the most part more light mean more bud (not always but in most situations it will incraese output). im running at 100 wpsf. go for the 600 watt and cool it with an air cooled hood. that area is small and will heat up fast. good ventilations is key. ive seen people run a 1000 watt hps in the same area but they used a AC unit but their yeils were amazing. about 2 lbs every 2 months from your size area. 25 plants in a SOG, and that was without CO2. add CO2 i nthere and your yeilds will probably be more than you know what to do with. (weed makes a good birthday and xmas present, i promise you no one at the aprty is giving a better present :))
 

jojajico

Active member
Veteran
dont waste light.. if your going to get the 1000 watt get the reflector too. put some CO2 in there and you guys will be swimming in buds
 
G

Guest

600 watts...4x3 = 12 half of 12 is 6 add the 2 zeros = 600= 50 watts per sq.ft..lol im stoned
 
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FOF

Member
i'd grow SOG (1 plant / sq. ft = 9 plants) using a 600W for canopy penetration. You'll yield at least 50% more bud with a 600 than you would with a 400, as lumen output on the 600 is nearly double that of the 400.

Edit: I run two 600's in a 6x3 SOG and yielded 2.5 lb's on my last run with Mountain Jam, which isn't an enormous yielder. 3.25 lbs with SSH previously. 600s kick ass.
 
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jojajico

Active member
Veteran
you can put way more that 1 plant/square foot. ive seen densities as high as 9/square foot. i think the optimal number is around 25 depending on strain. 1 gallon grow bags veg for no longer than a week or two. this is a very productive rapid harvest method. i wouldnt be suprised if you pulled 2.5+ lbs per harvest with somethingn like SSH. but that would be under the 1000 watt. with the 600 expect a bit less. your plants can use an assload more light than 50wpsf. really you can put anything in that space just remember to keep the air cool and packed with CO2. you do those two things and you could put 3 1000 watt hps in there (that would be overkill, but you get the idea).
 
G

Guest

jojajico said:
dont waste light.. if your going to get the 1000 watt get the reflector too. put some CO2 in there and you guys will be swimming in buds


yeah... because there will be soo much light being wasted in a 3x3 room...
 

jojajico

Active member
Veteran
Indica Sativa said:
yeah... because there will be soo much light being wasted in a 3x3 room...
wasted light is wasted light period. dont u want to get the most out of your equipment. dont waste light, dont waste plant potential.
 

the protege

Member
It doesn't matter, the highest I would go is a 600! THis is about a 600 vs. 400 for my roughly 10-11 sq. ft room. 3ft 4in X 3ft 4 in. That is all, and how hard it would be to cool it? Perhaps a Cooltube 600w hps with a 449 cfm inline fan? Would this work?
 

Mr.Jiggyfly

New member
I would do the 600 with a proper a/c hood and the 449cfm vortex. Im using a cooltube in a similar setup a the moment and the cooltube light footprint sucks. I need to get a proper a/c hood.
 
G

Guest

can't help ya if you don't post your room dimensions...

4'3" x 4'3" x ... = proper fan size
 

jojajico

Active member
Veteran
try to find a hood that closely matches the dimensions of your gorw area. your area is square so try to find a square hood so light is reflected evenly in this space when the hood is mounted in the center.
 
G

Guest

ok my cab is 15 sq.ft my 600 watt hps bulb went out and i replaced it with a 1000 metal halide 75 watts sq.ft...it is better believe me i can tell already 75 watts per square is better than 50 especially if you have plants 3 ft tall or more
 

420guy

Member
putting a hid light in there would cause you to have heat issues...putting a t5 high output floro in there and you'll have zero heat issues with just as many lumens per square foot...they work extremely well in small spaces with little to no temp increase...

 

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