hybridway2
Amare Shill
Most true Horticultural Leds have IR, granted most are only fiddling with 740nm. But ive heard of going higher to 780ish.Id rather my plants get the ir....
Ppfd :-)
- Thread starter Kingrow1
- Start date
hybridway2
Amare Shill
Try more like 3-4 yrs. Not many pass up upgrades. Its nuts.
hybridway2
Amare Shill
These guys use the most complex spectrum thus far that i know of & are merging into UVA+B , RN.The temperature difference between red and blue isnt that much and all colours are hot unless you have invented cold lasers and such.
Light is what its always been and was hoping you would see a complex spectrum not just the overview leds used and failed with
Far cry from 35k-4k w/ just 660nm.
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hybridway2
Amare Shill
Laks in 470nm. Of course UVA, tiny B, & last but not least 740+nm.How has the cree 3590 chip failed as far as spectrum?
To much green too.
A that artificial green is why i feel many suffer from Defficencies.
Artificial light & Sunlight are progected onto the plant differently no matter what your spectrometer says. And it says big difference.
So till we fill it enough my opinion is they can only receive so much artificial full band (400-700) light w/o cramping up or requiring something i don't understand yet.
Minimizing some green sound about right. Not burple, just minimize.
Theory of course.
hybridway2
Amare Shill
Compare the 2 hand in hand (especially a good enhanced white led) oh boy, youd be like what a difference. Led prevailing in density, terps, colors, ect....You cant handle the discussion, ive given answers - Start with why led spectrum makes hps spectrum look shit but yet hps does pretty darn well.... Explanations please??????
Its all good trolling and copy pasting led rubbish but if you ever hope to deal with higher discussion then you will address the stuff thats already at hand and not revert back to.led troll default.
Kassiopeija
Well-Known Member
true, but what about the night temperature once lights are out? plants store sugar ahead so they can grow in the night. if the roots get too cold, below 17°C it'll stiffle that. Temperature drives chemical reactions. MOs also replicate faster. And you cant just isolate everything and hold daylight temps in cause plants needs fresh air as well.
Heating plate under pots that auto-regulate temps during the night is an ok solution. Here, most heat transfers to the pot and stays instead if being lost
Kingrow1
Well-Known Member
Actually this is trying to restart the led hps debate and so far none have accounted for why hps works so well yet lacks the spectrum of led - I do know the answer just waiting for you to give it before hyping ledsover hps. The ppfd data was welcome though
Kingrow1
Well-Known Member
Still id just create the right air temps rather than work around a simple to fix problem indoors - ive tried a lot and this is the winner by miles
hybridway2
Amare Shill
Leaf temp must higher be then room temp. For proper transportation whereas leds generally leave you -2• below ambient instead of 5-7• higher.Actually this is trying to restart the led hps debate and so far none have accounted for why hps works so well yet lacks the spectrum of led - I do know the answer just waiting for you to give it before hyping ledsover hps. The ppfd data was welcome though
Kassiopeija
Well-Known Member
also electricity costs in the US is borderline cheap. a good LED setup still has a high cost and only justifies for professionals, not homegrowers...
Kassiopeija
Well-Known Member
brilliant points. so either multiples in a rack or a single in a tent is going to create an even distribution
hybridway2
Amare Shill
Eh, idk i agree.
Was referring to plant health consistency, strain dependent, nutritional balance yet to be completely figured out.
hybridway2
Amare Shill
Those are not the #'s i got on a 220w ,2x2' T'5 in 65k.This is the par of 4 x 24 watt t5's ATI'S no less.
So explain how if seedlings need 100-200umols of par why we arent hanging these at 24 inch and over
bk78
Well-Known Member
so is this just based off a sketch you found? What’s the actual par readings you are getting with your par meter?This is the par of 4 x 24 watt t5's ATI'S no less.
So explain how if seedlings need 100-200umols of par why we arent hanging these at 24 inch and over
hybridway2
Amare Shill
Im using 840-880w to cover a 6x5 with an approx of 800 ppfd. Even coverage.
This is giving me an average of 600g plants in a 4-5'x2.5'-3' area. Strain dependent.
Good g/sq' & g/w, while getting quality ive never had from hps. Ran hps/mh for 3.5 yrs non-stop.
My problem is dialing in the plants. More picky n finicky under led. Thing is, with a 75% health plant i can still crunch the hps. So ima keep dialing in seeing how I've hit that 2gpw mark last grow & its like gambling. Addicted to getting those results again n again.
Switch nutes just recently to see if tgat helps my early fading leaves.
This is giving me an average of 600g plants in a 4-5'x2.5'-3' area. Strain dependent.
Good g/sq' & g/w, while getting quality ive never had from hps. Ran hps/mh for 3.5 yrs non-stop.
My problem is dialing in the plants. More picky n finicky under led. Thing is, with a 75% health plant i can still crunch the hps. So ima keep dialing in seeing how I've hit that 2gpw mark last grow & its like gambling. Addicted to getting those results again n again.
Switch nutes just recently to see if tgat helps my early fading leaves.
Kingrow1
Well-Known Member
Well thats the crux - dialling it in.
I and others formed scenarios to explain the increase from hps to led growers see - less light from the led favoured them more than the brighter hps and less stress equalled more yeild - its fairly apparent in many threads.
Sometimes hps can be a bit of a beast with a whacking great hot spot underneath if too close, one pro of leds in that like t5's they spread light more even, downside is hps spreads light everywhere that downwards pointing leds really suck at.
I and others formed scenarios to explain the increase from hps to led growers see - less light from the led favoured them more than the brighter hps and less stress equalled more yeild - its fairly apparent in many threads.
Sometimes hps can be a bit of a beast with a whacking great hot spot underneath if too close, one pro of leds in that like t5's they spread light more even, downside is hps spreads light everywhere that downwards pointing leds really suck at.
hybridway2
Amare Shill
A dialed led grower can grow 1200+ umol.Well thats the crux - dialling it in.
I and others formed scenarios to explain the increase from hps to led growers see - less light from the led favoured them more than the brighter hps and less stress equalled more yeild - its fairly apparent in many threads.
Sometimes hps can be a bit of a beast with a whacking great hot spot underneath if too close, one pro of leds in that like t5's they spread light more even, downside is hps spreads light everywhere that downwards pointing leds really suck at.
One of my plants is getting 2200+ in places under 96 elite 320's with nothing but Happy Happy Joy Joy. The total ppfd on that plant is prob low tho as it only covers some of the plant.
Its the plain white boards & Cobs i have a hard time with. To dense are most. White 3k kills me too under most strains.
Idk why...
So its just so damn hard to say.
Once i thought the plants interrupted the par differently. Like 30% less led par equalled the higher hps par. Hence why i grow around 750-850 ppfd. But now I'm not sure. Jist me n my issues.
I see others growing 1000-1200 ppfd with no problems.
Kingrow1
Well-Known Member
Ya led is anything but clear cut yet.
Consider this though - not many plant species go past 1000umol indoors according to most data ive read.
Outdoors at peak sun they may push 1500+ but that is for a short time and much lower values either side for many hours. Indoors 1000 gives a respectable daily light integral dli like any good outdoor spot for flowering.
I find mj not such a high light plant as we think and those in very bright hot places use much thinner leaves than say your afghan variety.
More speculation for me atm but i hope to dial.in light and see increased results eventually
Consider this though - not many plant species go past 1000umol indoors according to most data ive read.
Outdoors at peak sun they may push 1500+ but that is for a short time and much lower values either side for many hours. Indoors 1000 gives a respectable daily light integral dli like any good outdoor spot for flowering.
I find mj not such a high light plant as we think and those in very bright hot places use much thinner leaves than say your afghan variety.
More speculation for me atm but i hope to dial.in light and see increased results eventually