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LED and BUD QUALITY
- Thread starter Tropical Sun
- Start date
CocoNut 420
Well-known member
It's a Ethos 4430 light meter.They certainly look alright
What light meter do you have? I might be able to convert that 70,000 into ppfd. Then I can get a proper look at what you are doing. You have my interest.
I find the end of the day can be a good visual indicator to how things are going, if there's a bit much light you might see them looking limp.
There's the timing of that aswell, if it's happing just before lights out it's not a issue, on the other hand if it's happening hours before its worth addressing I think.
CocoNut 420
Well-known member
They were harvested soon after, I thought they looked well for 83 days, no?I see a lot of off looking g leaves and plants in this thread being called good looking.........really detracts from any credibility.
I saw the same under led @Boo good luck I am curious to see how it pans out for you.
Hopefully you are smarter than I was about it.
Anyhow they're from a period of learning, there's a steep learning curve moving from hid to led
Now I'm happy with them overall.
CocoNut 420
Well-known member
You're entitled to your view.
Hps, back of my hand temps
Led no detectable heat.
We can agree to disagree
NorCalSkunkLord
Member
My thinking about led is if you have 100 sealed room or live in warm place on air coled room go for it. But its neded to add IR and UV diodes only "full spectrum" want work no mather what.
If you have classic air coled box,room...in temperate/cold climate go with Hids. Led is no sense.
Anyway I dialed completly led plants or at least very succesfull in last few years have near perfect grows with it...and it lack in terps always compared to hids...Im not to much expert on terps but those I call sulphure compounds. Which I talked many posts here and in other threads.
This probably is result of to intense light and high amount of IR...cuz outdoors plant have those terps also very,very high.
(When we talk about the same cutting/cultivar)
Also with leds model of leds play big difference in quality of growth cuz its human made sun or light source in new way. More artifical than lightings from past.
I dint grew under high IR UV led like crooked grow.
If you see his wall colour spectrum it pink just as is mine when I mix more "veg" led boards with higher K with HPS.
So it also need to be taken in account.
Nothing is better,but rather different.
If you judge fish on its ability to climb on a tree....
No one's a loser here. Everyone's bud in amazing in 2024.
Here's your blue ribbon. Take one and pass it down.
NorCalSkunkLord
Member
Let's go over literally everything EXCEPT nutes. And in the end, tell him it's all in his head. He probably has covid that's probably why his led bud has no terps.
NorCalSkunkLord
Member
Then why have I only seen bleaching on larf buds hiding in the shadows.
It's definitely heat or light. Nothing to do with nutes at all. And seeds with holes in them are female too.
Well considering he said he just converted to led, i wanted to know if he had increased lighting by a lot and also know his vpd through his cycle. If he brought up his light id suggest an increase in feed as well. But it sounds like all these new members have it figured out and a friendly attitude to go with it so you guys help him out!
Now youve seen what everyone is referring to. Tops, with the most light, especially lots of red, are the most impacted. If you have bleached buds in the shade then yeah something else is the issue.
Curious why you think we are gaslighting anybody? Literally trying to help the guy out. Have you ever under or overfed a plant and had all their terps disappear? Because ive never seen that. Sure, some quality variance but complete loss of quality, no. Whats your experience been like here? Instead of just down talking people maybe add some insight instead of just negativity, id sure appreciate it.
hillbil
Active member
A few years ago those bleached bud tips were blamed on the high energy blue diodes being too close. They called em “hash tips”, they were actually really worthless.
Edit: probably 10 years ago! I’m old!
Philips with a different perspective to Hawley (Fluence) and Bugbee:
www.lighting.philips.com
That’s why white tips differ from photo-bleaching | Philips lighting
Research by Signify has revealed that there are two types of white tips, and that photo-bleaching is induced by stress and not related to specific light spectra.
I personally used to see photobleaching regardless of strain under HPS unless they were far enough away. And some strains did do it more often than others. Since converting to led it is non existent. Mitch westmoreland did the module on this in bugbees course and they did test this. The plants with more red light photo-bleached at a certain intensity vs plants with a more even spectrum at same intensity did not. Im curious about their research at phillips but im not shocked to see other possibilities here.Philips with a different perspective to Hawley (Fluence) and Bugbee:
That’s why white tips differ from photo-bleaching | Philips lighting
Research by Signify has revealed that there are two types of white tips, and that photo-bleaching is induced by stress and not related to specific light spectra.
This reminds me of trying to decide on a healthy human diet out there these days haha. I can find 10 things that say fruit is good for me or oatmeal, and 10 more that say the opposite. Quite frustrating to say the least. Im confident in the results from USU and Bugbees team just because i saw their work. As far as genetically white tips that started that way, ive never seen it and they didnt have any info on that.
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Something I think makes their position interesting is that they are very late to this market, and the only major grow light manufacturer (as far as I’m aware) pushing pink lights.
Ca++
Well-known member
1400umol
That is on the high side, but in the safe zone. Perhaps you went past 1700umol when you had problems.
That Philips quote, about photo-bleaching not being related to light, is primary school level wrong. They must be having some sort of language breakdown. A misdirection, from them separating the issue into two camps. The language used is wrong.
To me it reads as ‘type 1’ being due to intensity and ‘type 2’ to red quantity, with varietal variations. (Simplified, incomplete summary).
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Weve had our best results with this schedule.
Week 1 - 2 35-55% dimmed
Week 3 - 4 60-90%
Week 5 - 8 100%
Week 9 85%
No real exactness here, i just dial it up every few days by about 3-5% in those ranges.
