Who has the largest quantum board grow?

BluntSmokerProtein

BluntSmokerProtein

Member
ganjamystic said:
cherry hills by thug pug.. it's black cherry pie x (gdp x appalachia)
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Hey man, (and everyone else on the thread) specing out my first build for a 2x4 tent, just wanted to pick your brain for a second, kind of a two-parter, first, what color temperature your QBs are, and second, based off the color temperature, do you run one 'all-purpose' light or two lights for veg and flower?

Any additional commentary from anyone else is greatly appreciated
 
NanoGadget

NanoGadget

Well-Known Member
Cola from the plant i just harvested a few weeks ago. Weighed 22g dried. Grown under 135w of QB. Plant was topped for 4 mains and yeilded a total of a bit over 4 zips. I know its not a large grow, but i figured it certainly dispells the led/tiny bud theory. *edit* Sorry, i read my logs wrong... that was actually 17.5 g dry. My bad.
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ganjamystic

ganjamystic

Well-Known Member
BluntSmokerProtein said:
Hey man, (and everyone else on the thread) specing out my first build for a 2x4 tent, just wanted to pick your brain for a second, kind of a two-parter, first, what color temperature your QBs are, and second, based off the color temperature, do you run one 'all-purpose' light or two lights for veg and flower?

Any additional commentary from anyone else is greatly appreciated
Click to expand...
A 260w xl qb kit (2 qbs on a triple heatsink with an empty space in between) works perfectly for a 2x4 tent. I use one in a 2x4 and two in a 4x4. Those are the original lights I built and they are 3500K. I also have 4 xw qb kits in 3000K. I currently use the 3500K mostly for veg and the 3000K mostly for flower, but I have vegged and flowered with both. Both color temps work fine for all-purpose lights. Between the two, I actually prefer the 3500K. If I could swap my 3000K boards for 3500K I would, but hlg doesn't make 3500K qbs anymore. In my experience, plants under the 3500K always seem slightly happier. Flowering under 3500K seems to produce slightly more frost as well. I like to throw my almost finished plants back under the 3500K for a week or so to finish when possible. If/when I add more light to my flowering area, I'll probably go with 4000K or 3000K 90CRI..
 
BluntSmokerProtein

BluntSmokerProtein

Member
ganjamystic said:
A 260w xl qb kit (2 qbs on a triple heatsink with an empty space in between) works perfectly for a 2x4 tent. I use one in a 2x4 and two in a 4x4. Those are the original lights I built and they are 3500K. I also have 4 xw qb kits in 3000K. I currently use the 3500K mostly for veg and the 3000K mostly for flower, but I have vegged and flowered with both. Both color temps work fine for all-purpose lights. Between the two, I actually prefer the 3500K. If I could swap my 3000K boards for 3500K I would, but hlg doesn't make 3500K qbs anymore. In my experience, plants under the 3500K always seem slightly happier. Flowering under 3500K seems to produce slightly more frost as well. I like to throw my almost finished plants back under the 3500K for a week or so to finish when possible. If/when I add more light to my flowering area, I'll probably go with 4000K or 3000K 90CRI..
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Thanks for your response, much appreciated. I was looking at HLG products last night and tumbled upon HLG's 320W QB kit, with the three QBs on the hs, do you think ill tap out on PPFD with the 320w vs the 260w? And thanks for the color temp info, Ive read lots of people getting awesome results with the 3500k vs the 4000k or 3000k, sucks they don't sell the 3500 anymore. Im thinking of going 4000k just because of the increased blue spectrum intensity for an all-purpose light.
 
booms111

booms111

Well-Known Member
BluntSmokerProtein said:
Thanks for your response, much appreciated. I was looking at HLG products last night and tumbled upon HLG's 320W QB kit, with the three QBs on the hs, do you think ill tap out on PPFD with the 320w vs the 260w? And thanks for the color temp info, Ive read lots of people getting awesome results with the 3500k vs the 4000k or 3000k, sucks they don't sell the 3500 anymore. Im thinking of going 4000k just because of the increased blue spectrum intensity for an all-purpose light.
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They still sell 304 boards that are 3500k, I'm not seeing kits of them but they do have 2 board 2 heatsinks combos and the 2 boards with one large heatsink combo of them in stock
 
ganjamystic

ganjamystic

Well-Known Member
BluntSmokerProtein said:
Thanks for your response, much appreciated. I was looking at HLG products last night and tumbled upon HLG's 320W QB kit, with the three QBs on the hs, do you think ill tap out on PPFD with the 320w vs the 260w?
Click to expand...
no problem. 320w is too much for a 2x4 for sure.. the 260w kit provides more than enough light for a 2x4. in my 2x4x5 tent, I never even turn it up all the way.. 150-160w is plenty.

(edit: the 320w light turned down would be slightly more efficient though, and you could also mix two 4000k boards and one 3000k board or two 3000k boards and one 4000k... whether or not that is worth the extra expense, I dunno..)
BluntSmokerProtein said:
And thanks for the color temp info, Ive read lots of people getting awesome results with the 3500k vs the 4000k or 3000k, sucks they don't sell the 3500 anymore. Im thinking of going 4000k just because of the increased blue spectrum intensity for an all-purpose light.
Click to expand...
I have no experience with 4000k, but based on my experience with 3500k, I think 4000k would work well as an all-purpose light.. you may get slightly more weight with 3000k but probably slightly more frost and terps with the 4000k, based on my experience.. the thing that sucks though is they are all 80cri, which puts the peak right in the yellow-orange zone at like 600-610nm... I wish hlg made 90cri qbs.. I like 90cri because the peak is shifted over toward red at 630nm.. I honestly think the reason I prefer 3500k (and the plants seem to as well) might be the balancing effect the extra blue has on the yellow peak.. the yellowishness of the light is what I really don't like about the 3000k 80cri spectrum, and maybe it's just in my head, but I swear the plants don't love it either...
 
BluntSmokerProtein

BluntSmokerProtein

Member
ganjamystic said:
no problem. 320w is too much for a 2x4 for sure.. the 260w kit provides more than enough light for a 2x4. in my 2x4x5 tent, I never even turn it up all the way.. 150-160w is plenty.

(edit: the 320w light turned down would be slightly more efficient though, and you could also mix two 4000k boards and one 3000k board or two 3000k boards and one 4000k... whether or not that is worth the extra expense, I dunno..)

I have no experience with 4000k, but based on my experience with 3500k, I think 4000k would work well as an all-purpose light.. you may get slightly more weight with 3000k but probably slightly more frost and terps with the 4000k, based on my experience.. the thing that sucks though is they are all 80cri, which puts the peak right in the yellow-orange zone at like 600-610nm... I wish hlg made 90cri qbs.. I like 90cri because the peak is shifted over toward red at 630nm.. I honestly think the reason I prefer 3500k (and the plants seem to as well) might be the balancing effect the extra blue has on the yellow peak.. the yellowishness of the light is what I really don't like about the 3000k 80cri spectrum, and maybe it's just in my head, but I swear the plants don't love it either...
Click to expand...
booms111 said:
They still sell 304 boards that are 3500k, I'm not seeing kits of them but they do have 2 board 2 heatsinks combos and the 2 boards with one large heatsink combo of them in stock
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Thanks for the info guys, I think im gonna roll with the double 304s @3500k. From what I read the 304s run more efficient at higher wattage, as I am planning on upgrading the size of my tent after my first couple runs with the LEDs. I'll post a thread of the results. The help is much appreciated, cheers guys.
 
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