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Offlineragtimewilly
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Registered: 06/14/09
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Starting a new grow
    #245801 - 07/03/09 07:01 PM (7 years, 5 months ago)

Alright guys so my friend is starting a new mini grow in their closet. The dimensions of the space they have to work with are 16" depth, 28" width, and 44" height. He is using cfl's and fluoro tubes right now and plans on using the scrog method. What would be the maximum number of plants you guys would flower in that area. I plan on turning this into a grow log seeing as how my friend is only in the early stages of growth. Thanks.


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Invisibleagmotes165
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Registered: 08/12/08
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Loc: Southeastern U.S.
Re: Starting a new grow [Re: ragtimewilly]
    #245958 - 07/04/09 05:51 PM (7 years, 5 months ago)

i think if you use clones from a mother plant...you can use 6"x6" square pots...so that works out to 8 pots...so 8 clones total...but i have also seen people grow in 2 liter bottle bottoms...which are 4 inches in diameter...so that works out to 28 small clones...and that would fit in without any wasted space...so i would go with that...and the clones allow you to flower a much smaller plant since they are already old enough to flower...so you clone and flower immediately...and keep the height down...since you have a low ceiling...

How many of what type of lights are you using for this...What are the lumen outputs for each type of light?

agmotes165


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“The Universe is under no obligation to make sense to you” -NDT


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Offlineragtimewilly
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Re: Starting a new grow [Re: agmotes165]
    #245962 - 07/04/09 07:18 PM (7 years, 5 months ago)

As of now I have 6 cfl's in 2700k at 26 watts making around 1600 lumens a piece along with 4 20watt fluorescent tubes and 3 15watt fluorescent tubes. I'm thinking very seriously though about getting a used 400 watt MH light from a construction site and trying to make it fit in the grow area. I'm worried I would run into heat problems with a 400 watt if I just used a lower wattage bulb in the lamp would I have to worry about heat issues? Thanks for posts.


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Offlinecannalover
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Registered: 07/21/09
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Re: Starting a new grow [Re: ragtimewilly]
    #252387 - 07/21/09 03:01 PM (7 years, 4 months ago)

thats alot of heat...make sure you have good exhaust i have grown under cfls in a closet of similar size and lemme tell you heat fucking builds up quick, i was getting up into the 90's  id go with a 400w hps depending on how many plants you plan on growing...there pretty cheap at lowes or home depot


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Invisibleagmotes165
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Re: Starting a new grow [Re: cannalover]
    #252531 - 07/21/09 06:13 PM (7 years, 4 months ago)

6 CFLs @ 26W a piece = 156W
4 20W Fluorescent tubes = 80W
3 15W Fluorescent tubes = 45W

Total wattage...281W
im guessing this is giving off about 16-17k Lumens which would result in about 55-60k lux...and normal sunlight is anywhere from 30k to 130k lux (lux is lumens per sq. meter, or luminous intensity)

a conventional 400W MH bulb gives off about 36k lumens, which would result in about 124-125k lux... more than double ur current light intensity, but would also input almost 42% more heat than ur current setup...

a 250W MH bulb puts out around 22k lumens at 4000K color temp...which is a decent all around bulb...and gets you 76k lux in ur area...and would actually lower the amount of heat generated in ur grow cabinet currently, not to mention lower ur electricity usage

now i have heard of anywhere from 1500 lumens/sq.ft. to 10k lumens/sq.ft...so lets go for a happy medium of 5000...now...the 250W MH would give you 7000 lumens/sq.ft. the 400W will give you 11600 lumens/sq.ft. and ur current set up is somewhere around 5000-5500 lumens/sq.ft.

I would say if ur current method is not too hot...use it...you should be fine, but if you have no problem maintaining the temperature...go ahead and try the 400W, and if you want to cool down the cabinet and increase the light, go with a 250W...you just have to remember...that the wattage that is going into the box is not magically disappearing...alot of the light portion of that is going into chemical bonds in the plant...but alot of the other bands of radiation given off as well as all resistance heat is going straight into the temperature rise inside the box...so you will probly see an almost linear increase in heat production as wattage goes up...

I hope this helps a little,
agmotes165


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Cannabis, Marijuana, Ganja & Greens >> Cannabis Cultivation

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