As I understand it, both uva and uvb work to increase potency and terpenes, but uvb is much more potent and harmful, so can only be on for a few hours per day, whereas uva can be left on constantly. In my setup I prefer to have the reds and blues built-in and have the uva separate, as I think the reds and blues are more important for general growth.
Invisible Sun feed
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Re: Invisible Sun feed
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Re: Invisible Sun feed
UVA is for root production mainly, its great at seedling stage , in later stages increased root production leads to increased nutrient uptake and t terpenes, it also has the benefit of mold and insect hindering,
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For further information on our products please visit our website www.invisiblesunled.co.uk
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Re: Invisible Sun feed
This is all interesting, food for thought.sybarite wrote: ↑Sun Feb 27, 2022 12:38 pmAs I understand it, both uva and uvb work to increase potency and terpenes, but uvb is much more potent and harmful, so can only be on for a few hours per day, whereas uva can be left on constantly. In my setup I prefer to have the reds and blues built-in and have the uva separate, as I think the reds and blues are more important for general growth.
The panel for my flower room will mainly be used for flowering but I’ll probably supplement it with a royal blue while scrog’ing.
Apart from that I just want a panel that’s going to be perfect for flowering. I don’t really know what the best combination is but have a vague understanding of what each of the supplementary panels do.
Things like seeds/ clones/ veg is taken care of in a separate tent so will have there own panels for them.
At the moment running 2 x 4ft t5’s and they are actually quite expensive to run so looking forward to replacing them with dimmable led panels.
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Drugs and Alcohol are never the answer! Unless the question was “what am I doing tonight”.
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Drugs and Alcohol are never the answer! Unless the question was “what am I doing tonight”.
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Re: Invisible Sun feed
I`m really not sure or convinced uva does help with resin production, it might help with rootzone and uptake, i just don`t know about that, I've never really looked. But uva is wrong wavelength for any real extra noticeable potency unlike uvb which i read is an ideal wavelength of 280-285nm for extra resin production. I mean in theory running or adding any blue light last few weeks of bloom would work to increase resin production ie: summink like changing a red hps bulb out to a mh bulb should help increase resin production tis just is it gonna be a noticeable difference like it would be if your running a uvb at correct wavelength, i think not personally speaking.
I`m pretty sure uvb can`t be produced at wavelerngth i mentioned (285nm) atmo in LED`s, then again I've not looked for a long time so shit might have moved on a wee bit since, but generally tis why most growers use cfl, t-5 or t-8 if they`re wanting any noticeable extra resin production for a few or more hours daily last 2 or 3 weeks of a grow.
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Re: Invisible Sun feed
Yes what i was always told was uvc for killing spores and shit like that, uvb for extra potency and uva does squat. Now i was told this a very long time ago pre led age and longer, so i do understand things have moved on lots nowadays what with testing this that and other. But cheers nice one.Invisible Sun wrote: ↑Sun Feb 27, 2022 12:58 pmUVA is for root production mainly, its great at seedling stage , in later stages increased root production leads to increased nutrient uptake and t terpenes, it also has the benefit of mold and insect hindering,
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Re: Invisible Sun feed
Yes, I read that too and posted about it here: viewtopic.php?f=28&t=173282-Scoops wrote: ↑Sun Feb 27, 2022 1:19 pmI`m really not sure or convinced uva does help with resin production, it might help with rootzone and uptake, i just don`t know about that, I've never really looked. But uva is wrong wavelength for any real extra noticeable potency unlike uvb which i read is an ideal wavelength of 280-285nm for extra resin production. I mean in theory running or adding any blue light last few weeks of bloom would work to increase resin production ie: summink like changing a red hps bulb out to a mh bulb should help increase resin production tis just is it gonna be a noticeable difference like it would be if your running a uvb at correct wavelength, i think not personally speaking.
I`m pretty sure uvb can`t be produced at wavelerngth i mentioned (285nm) atmo in LED`s, then again I've not looked for a long time so shit might have moved on a wee bit since, but generally tis why most growers use cfl, t-5 or t-8 if they`re wanting any noticeable extra resin production for a few or more hours daily last 2 or 3 weeks of a grow.
I thought Bruce Bugbee in his video was saying uva and uvb had an effect on resin production, but uvb much more so, although it's highly likely I was stoned out of my tiny mind and misunderstood
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Re: Invisible Sun feed
I didn`t watch video but i did read the thread. I will watch the video after ive had a spruce up in a bit though now, nice one.sybarite wrote: ↑Sun Feb 27, 2022 1:33 pmYes, I read that too and posted about it here: viewtopic.php?f=28&t=17328
I thought Bruce Bugbee in his video was saying uva and uvb had an effect on resin production, but uvb much more so, although it's highly likely I was stoned out of my tiny mind and misunderstood
As said this is all old stuff in my head now and summink ive not really looked into for a long time now and as said any blue light used later in bloom should also help with added resin production in theory.
Basically i think its all about stressing plant out to produce extra resin and uvb stresses it cock on for maxing that out, but im not 100% sure on that last bit but it sounds about right in my head .
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Re: Invisible Sun feed
Interesting read. Their research suggests UVA doesn't provide much benefits within the flowering period.
https://www.frontiersin.org/articles/10 ... 25078/full
https://www.frontiersin.org/articles/10 ... 25078/full
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Re: Invisible Sun feed
Our UVA slightly hinders mold and insects. Its not a cure/solution. The reason being is that in our UVA fixtures we use 3 nano meter wave lengths 405nm, 395nm and 385nm, the 385 nm is "crossing" the UVA / UVB threshold so it has a limited effect on mold and insects.also again with terpenes. UVA is in daylight all day long. Plants get an abundant source of it throughout the day.2-Scoops wrote: ↑Sun Feb 27, 2022 1:28 pmYes what i was always told was uvc for killing spores and shit like that, uvb for extra potency and uva does squat. Now i was told this a very long time ago pre led age and longer, so i do understand things have moved on lots nowadays what with testing this that and other. But cheers nice one.Invisible Sun wrote: ↑Sun Feb 27, 2022 12:58 pmUVA is for root production mainly, its great at seedling stage , in later stages increased root production leads to increased nutrient uptake and t terpenes, it also has the benefit of mold and insect hindering,
Must be clear though, UVA is not for increasing resin , it helps with root production, nutrient uptake which leads to improved , flavour, fragrances and potential yield if the roots are improved.
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Re: Invisible Sun feed
I see, so I was wanting it for the wrong reasons then really, I was thinking uva was like a boost you use near the end but it actually improves plant health through a healthier root system instead.
Still good to have in there I guess
Still good to have in there I guess
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