How far can "ripeness" be pushed?

[Rurumo]

I have one of these myself, but don't always use it:

AgroMax Pure UV T5 Bulb – AgroMax

I've got two of these, and two of the very basic reflector less fluorescent fixtures for them but I've been hesitant to try them out. I'm just not sure if I should use them with my LED bar light. I could easily mount the fluoros in between the bars, but since there is no reflector, I'm worried some of the UV light will spill up on the LED, which seems like it would be terrible for the diodes. Any idea how I could get around this? I'd love to try these things, but it was easier with my CMH hood in the tent.

 

[PJ Diaz]

I've got two of these, and two of the very basic reflector less fluorescent fixtures for them but I've been hesitant to try them out. I'm just not sure if I should use them with my LED bar light. I could easily mount the fluoros in between the bars, but since there is no reflector, I'm worried some of the UV light will spill up on the LED, which seems like it would be terrible for the diodes. Any idea how I could get around this? I'd love to try these things, but it was easier with my CMH hood in the tent.

I use a T5 fixture that has a very small reflector: https://www.bayhydro.com/lightech_t5_strip_2_24w

 

[CheGueVapo]

Well despite the absorbance spectrum of THC peaks lower for UVB and even when it absorbs deeper UVA better, the resin secretetion and production seems to increase best with the photons right around the edge of the visible spectrum. The luminus chips perfectly fit in.... 405 can be attached to the regular light, while 375, 385 and 395 can move to an extra channel, to increase then manually in the riping phase an just tiny wattage per chip. Keep an eye on bugbee an kosuma, they are elaborting the usefullness.

Bet they are. The UVB :UVA ratio is about 1 : 10 for sunlight.... the Bs do the severer damage, but the As energy trigger the enzymatic repair processes... what in our case, means: more resin secretion! It's photolyase, a well documented process.

 

[PJ Diaz]

Any light source puts out far less net radiation in the respective spectrum than the nominal power intake. Even LEDs radiate most of the power away as heat.

We would have to look at the LED numbers, too, here.

In any case, that light bulb is oversized and most likely very dangerous to handle. Not recommended.

All light is ultimately converted to heat anyway. My point was that you have a 300w lamp, which only 5% of it's energy is emitted in the UV range. You could take a different lamp which only outputs in the UV range for a more efficient fixture. The 300w lamp you linked to appears to be incandescent (although it could be some sort of halide), which is the least efficient of all lighting types.

 

[ComputerSaysNo]

The 300w lamp you linked to appears to be incandescent (although it could be some sort of halide), which is the least efficient of all lighting types.

Yes, I was just looking quickly for the affordable UVA lights with a high power rating. This is probably not the right choice for a growing application in any case.

I'm wondering if "black light" flourescents are suitable, they seem to be the easiest to get, and cheap. I've also seen that there are flourescents with a special plastic coating so they won't splinter all over the place when broken. It sounds like a good idea, since breaking flourescents are toxic.

 

[CheGueVapo]

Bugbee explicitely mentions the efficiacies of the chips and compares it to the royalblue, which are very good. Listen carefully... i marked the timestamp wherehe begins about that topic, just click play.

Note: "the peak heights are proportional to their efficiacies, this is the standard blue"

Ya fixture manfactures already use them by years, we dont need bugbee to prove it or to show it to us, he is the last man connecting the dots for everyone who demands the stochastic proofs. But in fact, in reality... IT WORKS! Need proof?

How the fuck such things somehow suddenly be possible....

Captain Future (Anesia Seeds) Feminized Seeds | On Sale!

Buy Captain Future seeds by Anesia Seeds now. Fast and discreet shipping within 24 hours. Best Price Guaranteed. Freebies on all orders.

oaseeds.com

After our Future # 1 was tested several times for over 37% THC and became a hit among dispensaries, it was clear to us that the journey could not end here.

Cross-Breeding? You believe that? No. These chips turn the strains into higher secretion of resin and therefore more THC per gramms biomass grown! They can reproduce it.... move their hole sortiment to a higher level and get the laboratory proof... thanks to the lights. Doi they tell everbody their secrets... they must be stupid! The other bereeders wanna know too.... so it's secret. You must find out yourself. Right dose about the noon in the riping phase, having your microscope at hand to work out what works best, what length, when to start, how intense, best combination of those 365,385, 395... what do i know, find it out yourself! Im experiencing it myself!

These fluorascendet peak to low too..... the LED fit better.

 

[CheGueVapo]

Check the luminus homepage, under the category "UV" you dont find the chips... but click on "horticulture" there it lists them:

Luminus : Horticulture LEDs

Luminus horticulture LEDs offer industry leading performance in terms of PPF [photo synthetic photon flux] and PPF/W metrics and come in a variety of package types ranging from mid-power to high power LEDs.

www.luminus.com

Why does luminus list these under horticulture?

Product Image	Product	Color	Package	Max Drive Current	Optical Output	Links	Status
	SST-10-UV	365 nm	SMT 3.45 mm x 3.45 mm	1.0 A	0.7 W - 0.9 W	Ecosystem Datasheet	Active
385 nm	0.9 W - 1.2 W
395 nm	0.9 W - 1.2 W
405 nm	0.8 W - 1.0 W

Maybe because they grow resin pretty effectively At least the price of the chips seems to "proof" it, if they worth it, i would charge the highestprice on the led-market too. You dont find any expensivierchips than these.... well, juuuust coincidence

Im out with some fitting music... i gave enough hints

You succeed at last, i know it, do not show it, don't give up now, keep on trying

 

[CheGueVapo]

All light is ultimately converted to heat anyway.

The chemical splitting of 2 hydrogen from 2hydrogene with1 oxygene, called "water", via light, called "photosythesis" is NOT a conversion into heat, but a conversion of energy into accumulation of complex molecules in an organical beeing, called "growth"..... the bud is only ultimately converted into heat if i burn it. So long I don't do it.... it is not yet light converted into heat Dont say every light is ultimately converted into heat, thats not true.You made the calculation without the chloroplasts! Theres a lot of them in our world So theres a lot of light ultimativly NOT converted into heat, but into growth! Thats COOLs: photo-chemical conversion, is exactly NOT heat! Except you insist the photo-chemical excitation of the reaction center is a "heat transfer", and the center is "an oven"... but it's not,, the reaction is not exthermic, its chemical USE of that energy to construct structures of carbon.... its electric impulse, chemical energy... not thermic energy (heat)! Only the photons that are not catched for photosythesis are absorbed turning thermically into heat. Just wanna say...

 

[PJ Diaz]

Yes, I was just looking quickly for the affordable UVA lights with a high power rating. This is probably not the right choice for a growing application in any case.

I'm wondering if "black light" flourescents are suitable, they seem to be the easiest to get, and cheap. I've also seen that there are flourescents with a special plastic coating so they won't splinter all over the place when broken. It sounds like a good idea, since breaking flourescents are toxic.

While blacklights have a spectrum within the UVA range, it coes not encompass the entire range of 315 to 400 nm. It's actually quite a narrow spectrum, only between 350 and 400, peaking around 370. Personally I am of the opinion that you want uvb in addition to uva.

 

[phrygian44]

Plus zerozero-sieving the tumbled twisla with a 200 mesh turn ...
... It might boggle their mind if they could try that

Hey, man. what a wealth of invaluable information. it's greatly appreciated. <three thumbs up>

there's so much to learn if you're starting from scratch and have never done this before (i always hate learning something new, because i know that I'm going to run into all kinds of problems on the fist couple of runs, and I over-analyze everything to shit - and this bothers me until i can wrap my head around the concepts of what I'm doing. but after a couple of runs, and i've worked out most of the kinks, I'm then happy and confident and start tweaking things to death to get the process down to perfection. that's when i'm happiest - and then i get bored. lmao), and your post points out so many of the pitfalls and problems that i would encounter along the way, to which you've already learned from and shared this information.
so, so many thanks for this knowledge, and for the information with the growing lights, too. I may get into indoor, eventually, but right now I have a garden greenhouse for seedlings that i start in early March, and then out in the ground they go on the May 24 long weekend (pronounced two-four, or two-fer if you're a French Canadian, eh? ). 24 came from the case of beer you got for the long weekend, which contains 24 beers, so the name has stuck for 50 years, now.

PS I can't contribute much here in way of making hash or indoor tent growing, but if you need to know anything about compost or composting, check out my series of articles in Forums>The Grow Room>General Marijuana Growing>DoItYoursef

and don't hesitate to ask if you have any question. i enjoy helping others (and would never not appreciate you giving me a blast of your primo, and then not paying you back in kind)

PPS there were dick-heads in my day too back in the 70's, so nothing much has changed since then, other than now you have this weird thing called FaceCrap, that sucks the time and life outta everyone.

 

[CheGueVapo]

Personally I am of the opinion that you want uvb in addition to uva.

I have somethiong for you to think about....
You need an umbrella for the rainy days, correct.
But theres not always rain at the moment.
How do you detect if it could be rainy day and you would need an umbrella.....
Right, only the dark clouds is what you look for to decide!

If it suddenly starts raining out of clear sky (switching the UVB on for no reason)... you get wet... the plants get damage, thats all!


You dont need the rain, for the plants the recognize the dark clouds and prepare..... because they are evolutionary programmed like IF THERE WAS that UVB under the real sun over millions of years, it's hard wired programmed inside them... you dont actually need the real UVB causing the damage.... only to trigger the photolyase..... google this word, it may help to find out what that means!

Photolyases (EC 4.1.99.3) are DNA repair enzymes that repair damage caused by exposure to ultraviolet light. These enzymes require visible light (from the violet/blue end of the spectrum) both for their own activation[1] and for the actual DNA repair.[2] The DNA repair mechanism involving photolyases is called photoreactivation. They mainly convert pyrimidine dimers into a normal pair of pyrimidine bases.

THIS grows resin, believe it or not! Not UVB! It's a myth! Photlyase is the trigger! The efficient LED-chips are just right there... the RESULTS are there! People tried it with UVB bulbs since 30 years and NEVER succeeded You dont need them for 25thc strains.... but you need these UVA chips for +35thc.... just realise it! More and more people find out! Im not making this up!

Personally I am of the opinion

Dude, im not stating my opinion.... im presenting to you facts that you can check or let it be... your decision!

 

[PJ Diaz]

The chemical splitting of 2 hydrogen from 2hydrogene with1 oxygene, called "water", via light, called "photosythesis" is NOT a conversion into heat, but a conversion of energy into accumulation of complex molecules in an organical beeing, called "growth"..... the bud is only ultimately converted into heat if i burn it. So long I don't do it.... it is not yet light converted into heat Dont say every light is ultimately converted into heat, thats not true.You made the calculation without the chloroplasts! Theres a lot of them in our world So theres a lot of light ultimativly NOT converted into heat, but into growth! Thats COOLs: photo-chemical conversion, is exactly NOT heat! Except you insist the photo-chemical excitation of the reaction center is a "heat transfer", and the center is "an oven"... but it's not,, the reaction is not exthermic, its chemical USE of that energy to construct structures of carbon.... its electric impulse, chemical energy... not thermic energy (heat)! Only the photons that are not catched for photosythesis are absorbed turning thermically into heat. Just wanna say...

I wasn't referring to photosynthesis at all. I was referring to the fact that when short wave radiation (visible light) hits an object, it is converted to long wave radiation (heat).

 

[PJ Diaz]

I have somethiong for you to think about....
You need an umbrella for the rainy days, correct.
But theres not always rain at the moment.
How do you detect if it could be rainy day and you would need an umbrella.....
Right, only the dark clouds is what you look for to decide!

If it suddenly starts raining out of clear sky (switching the UVB on for no reason)... you get wet... the plants get damage, thats all!


You dont need the rain, for the plants the recognize the dark clouds and prepare..... because they are evolutionary programmed like IF THERE WAS that UVB under the real sun over millions of years, it's hard wired programmed inside them... you dont actually need the real UVB causing the damage.... only to trigger the photolyase..... google this word, it may help to find out what that means!


THIS grows resin, believe it or not! Not UVB! It's a myth!


Dude, im not stating my opinion.... im presenting to you facts that you can check or let it be... your decision!

While you make some good points, there is also evidence and studies which suggest that short blasts of uvb light can increase thc production as a result of the plant protecting itself from perceived damage. The key is short blasts, which aren't long enough to cause real damage, but are ample to trigger the "repair" process. I can find some documentation for you if you are interested.

 

[CheGueVapo]

Anesia didn't reproduce 37% thc with short blasts of UVB..... if that would work... you would have that results in the 1980s man....
You seem kindo blocked and too much into UVB.... you dont WANT to give it up.... people try it so looong... IT DOES NOT WORK... no matter in the laboratory short bvurst do this or do that.... wtf...

So I give up!

Try this thread:

UVA to Increase Potency?

Found this from the Black Dog site; "From our own research grows, Black Dog LED has demonstrated that UVA light alone can increase THC and CBD production in Cannabis plants. The combination of UVA and UVB light (from a standard "reptile bulb" fluorescent light) also increases THC and CBD...

www.rollitup.org

Black Dog LED has demonstrated that UVA light alone can increase THC and CBD production in Cannabis plants. The combination of UVA and UVB light (from a standard "reptile bulb" fluorescent light) also increases THC and CBD production, but the inclusion of UVB in the light has noticeable detrimental effects on plant growth compared to only UVA.

So much proof everywhere, even the blackdog pink cold craplights feature it nowaydays

Again whats the reason for UVB at all, when UVA can raise THC and have better growth same time, isn't that more THC in total on totally more buds??

 

[PJ Diaz]

Anesia didn't reproduce 37% thc with short blasts of UVB..... if that would work... you would have that results in the 1980s man....
You seem kindo blocked and too much into UVB.... you dont WANT to give it up.... people try it so looong... IT DOES NOT WORK... no matter in the laboratory short bvurst do this or do that.... wtf...

So I give up!

I've seen side by side tests which suggest otherwise. The jury is still out of this, and the science is still young. Here is something for you to read:

UV and plants – UV4Plants Association

www.uv4plants.org

 

[PJ Diaz]

Also how UVB affects cannabis is largely strain dependent..

https://onlinelibrary.wiley.com/doi/10.1111/j.1751-1097.1987.tb04757.x

 

[CheGueVapo]

Maybe it increase because the UVB decreased the biomass by beeing bad for the growth of the biomass, just the resin is fine with it.... whatever. I wanted to be out... have fun with experiencing UVB and believing in it..... but in the end, the UVA LED emitters mentioned work fine out. increase THC AND promote growth AND are safer than UVB, so I dont care whatever you bring up with UVB... UVA is just better in achieving the goal.... i just wish you well, take care your eyes during your grows.

 

[PJ Diaz]

Maybe it increase because the UVB decreased the biomass by beeing bad for the growth of the biomass, just the resin is fine with it.... whatever. I wanted to be out... have fun with experiencing UVB and believing in it..... but in the end, the UVA LED emitters mentioned work fine out. increase THC AND promote growth AND are safer than UVB, so I dont care whatever you bring up with UVB... UVA is just better in achieving the goal.... i just wish you well, take care your eyes during your grows.

"maybe" so, and maybe not. maybe a bit condescending for sure.

I actually don't typically add UV these days, as my current fixtures already have ample UV. As mentioned I do have a UVB lamp, which I don't really use, but I plan to test it out in a local greenhouse who is having issues with their red lettuce getting properly red due to the UV-block on the double-walled poly roof. I'm fairly confident that I can get their lettuce to redden up with the right amount of additional UVA/B.

 

[CheGueVapo]

The claimed evidence for the UV-B perception sounds interesting... but i see no reference on that side you posted. Its just a claim.... and they say a lot about UV-B... but only few sentence about UV-A , that it is regulatory and high amount damagers, sorry this is no valuable informationi to me... there are no sources for the claims, there is'nt even an impressum. This is not a scientific source.
" International Association for Plant UV Research "

And im the international associated wizard of talking bullshit in forums....
Same scientific quality...

Please dont quote the international association of the wizards of oz next.... these are not authorities to take serious! It's just some webmasters...

International associatation that are scientifically studying UV for plants are called "universities"

In fact there is lot of evidence for UV-A perception, what the side doesn't mention with a word, maybe they mistyped UV-B for UV-A in that text... its called "PHOTOLYASE" and its UV-A-perception, not UV-B, i still recommend you to learn on that. Because that perception really exists in plants

Lighting Strategies for Higher Terpene and THC Content in Cannabis

The type of ultra-violet light you use makes all the difference for getting the most out of your plants.

www.greenhousegrower.com

Cannabis plants have their own similar system of blocking damaging UVB: increased trichome and cannabinoid production (CBD, THC, and many others) coupled with increased terpene production. These natural sunscreens are produced with exposure to both UVA and UVB light, although only UVB damages the plants’ DNA. UVA is the safest and least likely to cause adverse damage in plants while still triggering this photomorphogenic response.

Exposing plants in indoor cultivation facilities to UVA light can, therefore, increase terpenes, antioxidants, flavonoids, THC, CBD, and vitamins, without causing excessive damage to plants or inducing skin cancer in workers. This makes it the best form of UV light available for indoor cultivation, which is why it is the only form of UV in the Phyto-Genesis Spectrum by Black Dog LED.

What you want with UVB the environmentthat you, the gardenerer regularly step up...thats not sane IMHO, when UVA does the trick alone! There is no extra need for UVB except you like tod amage your plants and yourself when you forget shutting it off.

 

[PJ Diaz]

And im the international associated wizard of talking bullshit in forums....

I don't disagree with you there.

I gotta run now, but I'll try to find some evidence for you later. Colleges and Universities? Yes, I have heard of them. Oh hey look I'm employed by one.