i'm planning on using 1x 125w blue cfl and 1x 125w in dual for my hydro grow, i'm growing 2 big-bangs (it's a skunk, northern lights & el nino hybrid) in a scrog setup, about 1.3 x 1.3 x 2foot.

i can't afford to use a hps cos' of the heat issue + ventilation, so i was wondering - will this work if i use them for 24:0 for the first few weeks of vegging, switch to 18:6, then 12:12 flowering?
(i've got all the nutes, timers, air intale + outtake, mylar, ph and ppm issues sorted)

this is the unfinished grow box:

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and what sort of yeild can i expect?

and if somehow i was to use a hps what sort of yeild would that produce. and how would i ventilate it enough in such a small space?

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hmm, i've been looking and it seems like hps's are by far the better option.

if i bought a 200watt one and installed it in the growbox with some killer ventilation, would it be a secure investment?

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tightt!

Yeah i think a 70watt hps would work in that with the prober ventilation.

My space is 1.5'l 1.5'w and 18" deep and ill be sticking a 150w hps in it. But then again i do have 6 120mm computer fans for my vent system... lookin good though. I actually like the high power cfl idea, though they dont have the same intensity, get them close and i would imagine the results can be almost matched to the hps. Just got to get em reall close, so the highest intensity output is utilized.


and yeah, i think your buds will be 75 watts better with the 200w, the higher wattage the better, go for it!! if my space can fit 150ws than shit, anything is possible!

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awesome, i'm looking at this and make my own ventilation system for the light. would that, combined with the ventilation in the growbox be enough?

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'we be 'illin, chillin' at Mike E's house, we be smokin' some ganja in praise of Eek A Mouse'

Woa woa woat there rough rider. Lol. Hold on to your saddle. Did you give me the right link? cause i was linked to a 250w hps?

Ok not anything is possible, but you can do wonders with the proper ventilation. The highest possible hps system id say is 150w hps with a personal guess of about 4 comp fans or a low powered blower fan (150cfm and up), than maby. Hey is noise an issue for you? cause i may have just the fan... This think will rip a peice of paper accross the room like 5 feet, im guessing it has close to 250cfm, but it makes quite the racket, im not going to lie.

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"The creative mind plays with the object it loves." - Carl Jung

hah, would a 150w be worth investing in, i mean would the yield be much larger than if i used cfl's?

taking into account the cost of the extra ventilation as well.

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'we be 'illin, chillin' at Mike E's house, we be smokin' some ganja in praise of Eek A Mouse'

having used both CFLs and HPS... go with the HPS if you can. it makes a world difference.

not just in yield but in ease of growing... moving CFLs around is a daily job.

CFLs are a false sense of economy.

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dissent is the highest form of patriotism

I'd bet that 150w of HPS wouldn't require much more venting, if any, than 250w of CFLs -- especially if you could place the ballast outside the cabinet. In my experience the CFL ballasts get pretty warm, especially with the big 85w+ bulbs.

Looking at eBay, two AgroSun 125w CFLs cost around $120 with shipping. An 150w HPS one-piece unit (lens and enclosed ballast) costs $125 with shipping. The AgroSun lights will give you 15,000 lumens -- the HPS will give you 16,000. So it's a matter of spending more money to get less light and lose more space to another bulky bulb.

not having experience yet with smaller HPS i can only guess... i am guessing kenaz is correct... 150 or even 250 watt HPS cant be that awful to deal with.... seen a lot of micro grows using them.

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wait, let me get this straight... if you fry an egg you can get fucked up?
dissent is the highest form of patriotism