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 Hime
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Registered: 02/16/13
Posts: 172
Last seen: 10 years, 6 months
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 150w HPS small grow 
#662189 - 03/13/13 01:44 PM (11 years, 8 months ago) |
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I had planned to buy 4 3000k t5hobulbs for my fixture to add when I decide to flower. The price for 4 bulbs is roughly 30$.
Should I just say f it and buy a 150w HPS to rep the T5 when it comes to flower time? They are about 30-40$ more. They are small though •Dimensions: 15.25'' x 7.5'' x 4.25'' recommended for a 2' x 2' area. The ballast is vented but doesn't have a spot for air cooling. Would I need extra ventilation to accommodate this? Is 150w worth it for just a couple plants? I'll probably lst them or build a scrog. What do you guys think?
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Livin, learnin, takin it easy 
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 Hawksresurrection
Registered: 12/04/08
Posts: 13,464
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Re: 150w HPS small grow [Re: Hime]
#662198 - 03/13/13 02:59 PM (11 years, 8 months ago) |
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Whether you would need to vent that small of a light would depend on the size of the grow area.
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Dude she isn't as young as she use to be.
-niteowl
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Hime
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Registered: 02/16/13
Posts: 172
Last seen: 10 years, 6 months
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How about 2' x 2' x 63"(20.3cuft) or 36" x 20" x 60"
Could I get away with a small clip on fan or bottom fan inside along with 4" 171cfm hurricane inline fan speed controlled to what best fits the tent/200cfm phresh filter?
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Livin, learnin, takin it easy
Edited by Hime (03/13/13 03:39 PM)
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mhbound
Ballin out at all cost
Registered: 09/22/08
Posts: 8,144
Loc: High 
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Re: 150w HPS small grow [Re: Hime]
#662217 - 03/13/13 04:13 PM (11 years, 8 months ago) |
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No way, an area that small will need some sort of ventilation pushing air in and out, you have to remember its not just the heat you have to worry about its the stale air...Small computer(check the CFM ratings) fans with maybe a homemade carbon filter would work perfect for something like this IMO.
Edit: I didn't read the dimensions correctly, actually you probably could get away with just a fan if you had to.
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Suck my balls America
Edited by mhbound (03/13/13 04:17 PM)
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Hime
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Re: 150w HPS small grow [Re: mhbound]
#662220 - 03/13/13 04:18 PM (11 years, 8 months ago) |
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The 171 cfm dialed into 200 cfm carb filter with passive intake and a fan inside wont be enough? edit: Ok cool didn't see your edit hehe
Also would you think that a light with those dimensions could cover a 2' by 2' canopy? Should I go for something a little bigger dimensional wise?
Thanks for the help guys, truly appreciated 
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Livin, learnin, takin it easy
Edited by Hime (03/13/13 04:19 PM)
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SmokeSomeHash
Littlest pee pee on da block
Registered: 02/26/13
Posts: 1,555
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Re: 150w HPS small grow [Re: Hime]
#662221 - 03/13/13 04:22 PM (11 years, 8 months ago) |
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Mini grows are awesome. A buddy i know has the hydrofarm 175 halide mini sunburst and uses it from start to finish in a 1.5x1.5x6. Temps go from 70-95 at times (its outdoors with no ac). One to two plants scrogged into a 3.5" mesh with 5x5 rows of squares givin him 25 colas.
Needs constant venting though. Running a small pc fan 24/7 but will be upgrading to a bigger one. Tent is bw poly with zip.
When he had it indoors in the 76 ac, the temps were 76-84...so the lights not hot at all...and he had it SUPER close to the leaves. The high temps now are due to somethin else i cant discuss but the plants do fine.
Ive sold a few of the HF 150 HPS mini suns which is the same but in sodium, and i havent heard any complaints yet. Every now and then they throw in one or two cfls but i wouldnt. As long as you scrog youll be fine.
And i wouldnt do more than 2 SMALL plants...youll still get a decent yield.
So yeah, get the HPS and scrog. But constantly vent.
Edit: If youre talking about the ballast im thinking of, then you could also use this flange adapter to convert the reflector into a 4" air cooled through the vent that you mentioned in the OP.
http://www.hydrofarm.com/product.php?itemid=7116
It works badass, just seems a little excessive to run ducting and a 4" fan and all that for such a little light when you could just T5 all the way through but hey whatever works 
Edited by SmokeSomeHash (03/13/13 04:49 PM)
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Hime
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Last seen: 10 years, 6 months
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Great to hear that, I think I may go for it.
So nothing to worry about as far as 18.9L x 8.3W x 7.1H 150w hps covering a 2' x 2' area?
Also what would you recommend for a container size with two plants? I'm thinking maybe some 3 gallon root pouches.
Thanks for the info
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Livin, learnin, takin it easy
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SmokeSomeHash
Littlest pee pee on da block
Registered: 02/26/13
Posts: 1,555
Loc: murica
Last seen: 8 years, 9 months
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Re: 150w HPS small grow [Re: Hime]
#662230 - 03/13/13 05:00 PM (11 years, 8 months ago) |
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the coverage is gonna vary based on how high you hang the light. You could put the light super close but youre gonna lose some area, and in the 2x2 tents ive seen they raise the light a little higher than it needs to be (temp wise) just because the coverage is pretty small on those reflectors. a 2' 4 bulb T5 would probably give you better coverage without as much heat.
if youre thinking 3 gals it sounds like height is not an issue, in which case go for it...but the grows im thinking are SMALL plants, like 2 6x6" square pots because the tent is only 6' tall.
and i would make a tent if you dont have one, i wouldnt use such a small light in an open area
if you had a taller tent could prolly do bigger containers. but at some point you gotta ask yourself if you really wanna do a mini grow or just get a 400w 
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Edited by SmokeSomeHash (03/13/13 05:05 PM)
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Hime
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Registered: 02/16/13
Posts: 172
Last seen: 10 years, 6 months
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Hmm I'm reconsidering just going 8 t5's on it, that's a perfect 2' x 2' cover. I was thinking a couple three gallons or maybe 1 just LSt'd or scroged as best as possible. Maybe a few one gallons is best for something like this? I've just read the growth you see coming out of the soil is about the size of growth that your roots will be, but then again I've seen giant plants in small containers. I just wanted them to be less stressed.
I'm thinking 12-16" of lsted growth and then going 12/12 into scrog if I do T5's.
I've got a lot to learn... so much reading 
I wish I could do a larger grow but my closet is so tiny I'm hoping to at least supply my meds... one day I will bathe in cannabis oil
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Livin, learnin, takin it easy
Edited by Hime (03/13/13 05:25 PM)
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