Deciding on which light to buy.. Sorta of a drag

Rottedroots

Rottedroots

Well-Known Member
Very cool budski's. The height limitation of five feet is because I'm using a basement utility room and that's all there is. The area I'm enclosing has a HVAC vent to the outside which made temperature regulation a breeze. I can put a grand into the space of 13L x 4W x 5H but to allow some wiggle room I'm trying to properly illuminate an 8 x 4 x5 area. I was intending to go with fixtures instead of my own array because it was the easiest and required less of an understanding of LED'so. I've got 30 plus years of outdoor growing under my belt and have been successful by any standards using CFL'so indoors as a bit of a novelty. My point is simply that I have a good grasp of cultivation. I wish you could check out my 1200 sq ft veggie garden or my Z6 hardy tree and woody collection but I guess that's for another forum. I'm definitely not against doing a from scratch build I was just dumbing it down for myself. If it's just a matter of looping a bunch of standard porcelain light fixtures together I'm all over it. Cheapo Depot and Lowe's have a bunch of Cree bulbs. All I'm lacking is sufficient knowledge of LED to give the plants what they need from vegging to finish. It seems the consensus is that DIY is the way to go so I'd better start educating myself. When I look at the lingo you guys are using its intimidating. I didn't even want to ask what COB was an acronym for....I felt relieved when I Google it. Thanks for the info and I will put it to use. Rock on!
 
Hybridway

Hybridway

Well-Known Member
Rottedroots said:
Very cool budski's. The height limitation of five feet is because I'm using a basement utility room and that's all there is. The area I'm enclosing has a HVAC vent to the outside which made temperature regulation a breeze. I can put a grand into the space of 13L x 4W x 5H but to allow some wiggle room I'm trying to properly illuminate an 8 x 4 x5 area. I was intending to go with fixtures instead of my own array because it was the easiest and required less of an understanding of LED'so. I've got 30 plus years of outdoor growing under my belt and have been successful by any standards using CFL'so indoors as a bit of a novelty. My point is simply that I have a good grasp of cultivation. I wish you could check out my 1200 sq ft veggie garden or my Z6 hardy tree and woody collection but I guess that's for another forum. I'm definitely not against doing a from scratch build I was just dumbing it down for myself. If it's just a matter of looping a bunch of standard porcelain light fixtures together I'm all over it. Cheapo Depot and Lowe's have a bunch of Cree bulbs. All I'm lacking is sufficient knowledge of LED to give the plants what they need from vegging to finish. It seems the consensus is that DIY is the way to go so I'd better start educating myself. When I look at the lingo you guys are using its intimidating. I didn't even want to ask what COB was an acronym for....I felt relieved when I Google it. Thanks for the info and I will put it to use. Rock on!
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Check out Fluence Bioengeniering. Muti-diode lights spread even & wide will allow you to grow close to the plants.
Good Luck!
You'll want to look into the SpyderXPlus
https://fluence.science
 
PSUAGRO.

PSUAGRO.

Well-Known Member
JorgeGonzales said:
Not to be a dick, but prove 70% efficient. Those @CobKits measurements get real dicey on the low end, and that 70% figure is relative to Cree, but Cree has not provided numbers for the CXB3590 below 50W.

It's all bullshit until this stuff ends up in a sphere, which many people have promised, nobody has delivered.
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lol..............70% system efficiency............don't even entertain it, cobkits is really turning this forum into something else

lets get some REAL system efficiency data in for reference(credit nick's sphere):

Kind K5 XL750 19%
Illumitex Neo Sol DS 22%
Spectrum King 400+ 90 degree 26%
Spectrum King 400+ 120 degree 27%
Spectrum King 600+ beast 36%
Gavita Pro 1000e 34%
T5HO 8 tube 13.3%

NextLight Mini 38%
NextLight Veg8 40%
NextLight Mega 46%





yeah 70% seems feasible ATM:roll:..............cobzzzz are good , but not magic
 
CobKits

CobKits

Well-Known Member
take things out of context much? have i said anything other than in the tests the cobs approach 70% below 10 watts where its very diffcult to get accurate measurements? is this debatable? you might want to see who said what before attributing quotes to me.. plenty of disclaimers with the data i put out there.
 
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sixstring2112

sixstring2112

Well-Known Member
i see this high eff talk and i just think about what growmau5 mentioned with his 700ma grow vs his newer 1050ma grow.theres a point were running soft hurts you more than helps you.based on what @PSUAGRO. just posted the gavita aint lookin so bad lol
 
CobKits

CobKits

Well-Known Member
sixstring2112 said:
i see this high eff talk and i just think about what growmau5 mentioned with his 700ma grow vs his newer 1050ma grow.theres a point were running soft hurts you more than helps you.based on what @PSUAGRO. just posted the gavita aint lookin so bad lol
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not sure i follow either of those statements tbh, can you elaborate a little?
 
sixstring2112

sixstring2112

Well-Known Member
yeah if you watched his video results he spoke of eff vs yields and then changed out all the drivers to 1050 ma lol.and my second statement was just saying gavita @34% looks pretty nice going up against ANY led imo,considering you can have one hung and growing for about 420 bucks now.i have been preaching gavita does not put out as much heat as other hid since i got mine.they may be cooler than my 600w cooltubes when you factor all the radiant heat that comes off the cooltube itself plus any piping in the grow space.
 
CobKits

CobKits

Well-Known Member
PSUAGRO. said:
lets get some REAL system efficiency data in for reference(credit nick's sphere):

Kind K5 XL750 19%
Illumitex Neo Sol DS 22%
Spectrum King 400+ 90 degree 26%
Spectrum King 400+ 120 degree 27%
Spectrum King 600+ beast 36%
Gavita Pro 1000e 34%
T5HO 8 tube 13.3%

NextLight Mini 38%
NextLight Veg8 40%
NextLight Mega 46%
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how come this doesnt match your 2.1umol/J mega/1.7 DE post on the front page? on page 1 the mega is <20% more efficient and in the test above its 40% more efficient?

i dunno what the LER is for hps but bugbee certainly tested a gavita, a t5 and illumitex (maybe not the same models), how did those numbers compare?
 
CobKits

CobKits

Well-Known Member
well its certainly diminishing returns 1050 vs 700 mA. costs you 50% more in chips to gain 5% in efficiency. maybe he meant it hurts your wallet ;)

gavitas certianly put out less heat that SEs but not any substantial difference vs the other DEs
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
CobKits said:
@PSUAGRO. you may be going off of this, which is not even close to accurate. in his example 1212s at 30W are around 50-55% efficient. Again not something i said, at all.
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@PSUAGRO. I think that I had I misunderstanding from another post far far away and then I thought @CobKits stated it... but it is in the data sheet and possible... just not at the wattage that was stated. My bad, I could have sworn I saw someone make that claim and I was trying to figure out where.
 
PSUAGRO.

PSUAGRO.

Well-Known Member
CobKits said:
how come this doesnt match your 2.1umol/J mega/1.7 DE post on the front page? on page 1 the mega is <20% more efficient and in the test above its 40% more efficient?

i dunno what the LER is for hps but bugbee certainly tested a gavita, a t5 and illumitex (maybe not the same models), how did those numbers compare?
Click to expand...

Not new de bulb / reflector........ fired less than a dozen times before test (1.5 ppf/w)

1.7ppf/w is from thr utah sphere ?beta team got similar #......
 
C

churchhaze

Well-Known Member
Stephenj37826 said:
Remember guys don't get 100% caught up in umol/j. It matters NO.1 where that light hits the canopy and NO. 2 where in the visible and slightly beyond spectrum those photons are. Mostly NO. 1
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When someone with an "advertiser" tag says something like "don't get too caught up in umol/j" or "don't get too caught up in efficiency", run. Don't let them trick you with mirrors/lenses.

Total output, efficiency, and quantum efficacy of the source are much more important than the optics (smoke and mirrors) they use.
 
cindysid

cindysid

Well-Known Member
Rottedroots said:
Very cool budski's. The height limitation of five feet is because I'm using a basement utility room and that's all there is. The area I'm enclosing has a HVAC vent to the outside which made temperature regulation a breeze. I can put a grand into the space of 13L x 4W x 5H but to allow some wiggle room I'm trying to properly illuminate an 8 x 4 x5 area. I was intending to go with fixtures instead of my own array because it was the easiest and required less of an understanding of LED'so. I've got 30 plus years of outdoor growing under my belt and have been successful by any standards using CFL'so indoors as a bit of a novelty. My point is simply that I have a good grasp of cultivation. I wish you could check out my 1200 sq ft veggie garden or my Z6 hardy tree and woody collection but I guess that's for another forum. I'm definitely not against doing a from scratch build I was just dumbing it down for myself. If it's just a matter of looping a bunch of standard porcelain light fixtures together I'm all over it. Cheapo Depot and Lowe's have a bunch of Cree bulbs. All I'm lacking is sufficient knowledge of LED to give the plants what they need from vegging to finish. It seems the consensus is that DIY is the way to go so I'd better start educating myself. When I look at the lingo you guys are using its intimidating. I didn't even want to ask what COB was an acronym for....I felt relieved when I Google it. Thanks for the info and I will put it to use. Rock on!
Click to expand...
I feel the same way! I can grow plants, but when these guys start talking cob and cree, par, lux, etc...I start to feel a little hopeless...I just can't seem to grasp the concept well enough to consider DIY.
 
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