anything thats not overkill is underkill?

[SatoriSOG]

hello Icmag, i've been researchin and saving for months now instead of starting my project like i've wanted to do months ago, and with much of the great help i've found on this forum i wanted to start my project soon.

I have most factors thoguht about already, but one last thing i've been wondering is if a 400w HPS w/ cooltube would be complete overkill for a 1.5ft [L] x 2ft [W] x 3ft [H]?

I realize more lights the better, but provided i can control the heat and ventilation, could there be any adverse effects?

 

[FreezerBoy]

In that space a 150 would be ideal. A 250 would be overkill. I doubt the 400 would provide any benefit and, in a cab as small as yours, IR levels may be a problem.

 

[SatoriSOG]

yeah, I realized that, infact 150w hps was the original plan...but i came accross a 400 for free...


and what IR issues would I have? assuming you meant Infared

 

[FirstTracks]

agree with freezerboy.

150 would be good.

250 is possible but you'd need a 150-200 cfm fan on a well-sealed cooltube and a 200cfm fan through the filter.

save the 400 for a later day or increase your space my friend

 

[00420]

i ran a 400 in a 2 x 2 x 4h let me tell you it was the best i have had....
<---------my avatar

 

[FreezerBoy]

yeah, I realized that, infact 150w hps was the original plan...but i came accross a 400 for free...


and what IR issues would I have? assuming you meant Infared

Aw crap. Free ain't nuthin' to sneeze at. Can you build the cab taller? I was in fact referring to infared which can burn plants if you're too close. An 8" substrate with 8" of growth prior to 12/12 and 8" sacrificed to the lamp leaves you 12" of grow space for buds, about the distance you'll want between a 400 watt lamp and canopy, which leaves you 0" to grow your buds in.

My cab is 22'x29"x54". I'm running a 250 CMH (56 watts per sf) which is a bit cooler than an HPS and can hang 2" above my canopy. She turned out pretty well. The PVC frame is 29". The cola in the middle rear was close to 24" long, though, she's a sativa. I suspect an indica would be shorter.

 

[maryj315]

that off a 250 nice freezerboy nice.

 

[SatoriSOG]

i ran a 400 in a 2 x 2 x 4h let me tell you it was the best i have had....
<---------my avatar

what meduim did you grow in? and how was your yield w/ how many plants?


as for freezerboy let me start off by saying, those are some beautiful ass cola's in that grow of yours especially from a 250

In previous research, I've been told that a cool tube light can be within 6 inches of the canopy.

the most extra height i can give would be another half foot.
I have satori and white satin seeds ready, and according to the friend who gifted them to me flowering after a week from clone would get me about a 24inch plant in a half gal of coco under a 400.
I haven't ruled a scrog out either, just to control the height.
I've been lookin into CMH bulbs and I definitely dont mind dishing out hte money for a CMH since i get the ballast for free


if you kept that 2 inches above the canopy, how much height you think would be needed if i wanted to run a 400w cmh w/o burning the foliage?

 

[00420]

what meduim did you grow in? and how was your yield w/ how many plants?

i did a 10 gallon rubbermade with a aero setup (150gph pump 1/2" pipe 6 sprayers ) it was 6 plant's 3 white widow and 3 silverhaze on the ww 1.5 oz each and on the SH (low yeild sativa) was 1/2 each just under 1/2 gram a watt if i would have done all ww id been gold but the haze was well worth the yeild lose i all so had root rot...... i used a 265 cfm fan no cooltube the fan was intake from under the house it was in a closet that had a attic hatch that i opened for outtake very simple room....

i lost all the pic's to OG except this one

 

[SatoriSOG]

man, that budshot is sexy man

was that the haze or the widow?

 

[FreezerBoy]

At this point I have to bow to 00420's superior experience. He's dealt with the 400 in a small space and I have not. (though I would add that extra half foot to the cab if possible.) I love my 250 but, the lamp, ballast kit and shipping ran about $125 (that's with an existing hood, socket and ballast enclosure) Stick to the 400 and you have $125 or more for beans. Who says math isn't fun?

Worse case scenario, you fry one plant and go get a 250. Best case scenario, you have more bud than you can handle.

Here's a link to the 400 club. Do a search by Titles Only in Advanced Search. Check out what other 400's are doing.
http://www.icmag.com/ic/showthread.php?t=21967&highlight=400

 

[FreezerBoy]

that off a 250 nice freezerboy nice.

Thanks but, really, I had little to do with it. Before I came here, my grows were sad and puny. What you see there are the IC Forums in action. All I did was follow directions and stay away as much as possible.

Darn you IC. Darn you all to heck.

 

[00420]

man, that budshot is sexy man

was that the haze or the widow?

that was the silvehaze ...... fuck it was good.....

At this point I have to bow to 00420's superior experience. He's dealt with the 400 in a small space and I have not. (though I would add that extra half foot to the cab if possible.) I love my 250 but, the lamp, ballast kit and shipping ran about $125 (that's with an existing hood, socket and ballast enclosure) Stick to the 400 and you have $125 or more for beans. Who says math isn't fun?

experience yes..but not with a 400

that was my first & last grow with a 400 ( other then veg )
after that i went to 1k's and YES i put a 1k in that 2 x 2 x 4h with 6 silvehaze and i lost them to root rot rez just got to hot ... after that i moved to a bigger room and turnd that closet into a veg/mom room

 

[Pharma Geddon]

I managed a 400w hps grow in a 30" x 30" walk-in cupboard. Didn't even have an extractor fan lol.

I fitted plastic louvres/vents to both sides of a plasterboard wall (drywall?) low down for passive intake and cut out the plasterboard ceiling so the heat could drift up into the loft. Had an office fan blowing on the bulb and got a nice chimney effect.

Odour control was with a diy ozone genny.

I have thought that a wardrobe grow could be done like that, have a light trap at the top that gives the warm air as easy an escape route as possible.

 

[SatoriSOG]

whew, this is makin me feel a lot better

but my project is gonna be put on hold...

but with good news, I have yet another project a friend needs help with! but this time i get to try to put 2 400 watters in a 3ft long x 2ft wide and 3.5ft tall cab :]

 

[Whatever]

I was in fact referring to infared which can burn plants if you're too close.

From what I understand there will not be any burning if temps are controlled properly in the hood/cool tube and between the hood/cool tube and tops. You will get bleaching...not burning.

The closest you can keep tops to bulbs without getting bleaching is like:
150 W - 4"
250 W - 5"
400 W - 6"

From what I understand infrared is more an issue in thick canopies where as light passes through there is a greater preponderance of infrared which the plants sense then stretch to compete for light. Indoors I cleaned out underneath the canopy and the thickest I allowed was about 12". I'm not talking about 12" from the light but once the canopy got to the point it was fully filled in.

 

[FreezerBoy]

Again, I'm happy to bow to greater experiance. I admit to erring on the side of caution in most things grow related. We tend to reason according to personal experiance and I went through hell and back with cooling when I jumped from a 150 to a 250 in a larger cab than being discussed here. Then again, I have an obsessive need for uber-stealth which limits cooling options.

 

[SatoriSOG]

so anyone, how effective you think a screen over SOG plants would be? just to control height

 

[00420]

so anyone, how effective you think a screen over SOG plants would be? just to control height

i dont think it's needed with a hdsog theres nowhere for the screen to go except up.... just stick with inda dom plants and you will be fine

urkle @ 3" end's up 5-6"
peak 19 @ 3" end's up 8-10"
white widow @ 3" end's up 12-15"
silverhaze @ 3" end's up at 15-20"

just play with what you got you will find where you want to start to finish what you need .... i had to take a few top nug's to help the plant from burning befor it was fine n i got to smoke a lil early....

budding growth depinds alot on how you feed them and how good of clone's you got some you might need to veg 2-7 days some you can pop right off...

just play homie lose 1 add 2 to make up for it

 

[SatoriSOG]

lol about that haha...i have satori, white satin and mandala 1 seeds

how much did your plants yield flowering that early?