Question about aging LED lights

Samwiseman420 · Apr 16, 2025

I have noticed over the last few grows that the frost on my plants is less and less. Same clones but different outcomes. I'm starting to think it's my lights. I have a few HLG Scorpion Diablos and a few Chilled Growcraft 600 watt. They are all 5 plus years old.

I called HLG and asked he same question and their reply was that they can last 10 years no problem without diminishing returns. That does not seem to be right IMO. I still get the same par readings but the frost has diminished over 50% at end game. Same food, same clones and same lights.

I'm thinking about replacing 1 out of the 4 lights just to see what happens. Opinions?

Rocket Soul · Apr 16, 2025

Could be the clones just as well, even though the the genetic is same there could be some epigenetic drift: genetics losing their magic.

If it was any other lights id be inclined to say go for it but dem sum expensive and really good lights. If par levels are the same my suspicions would not be the lights.

Why not try playing with other factors instead? Cold finish? Or a little bit of UV? Though if i were adding uv to the scorpion spectrum id try to balance it with a little more red light inorder not to get any yield loss from blue response.

Samwiseman420 · Apr 16, 2025

My tents are way too hot all thru the grow. I have no way of cooling them any better than I can do atm.

BongChoi · Friday at 11:03 AM

Do you reuse soil? Some people describe losing punch overtime if not perfectly balanced

Samwiseman420 · Friday at 4:52 PM

BongChoi said:
Do you reuse soil? Some people describe losing punch overtime if not perfectly balanced

Na, always fresh :cool:

GBAUTO · 2025-04-22T19:40:46-0600

All of the fixtures I built 9 years ago are still killing it. I've got a run going currently with some auto's and they are loving life.

Wastei · 2025-04-22T22:04:36-0600

My Meijiu 635w LED has been putting out the same output since 2019. It's pretty easy to measure and good genetics will show good expression even under less optimal lighting conditions.

You need adequate light but without the genetic potential you won't get where you want to be. I've seen diminishing result from taking a clone of a clone for 5+ years. Cuttings loose vigour after years of cloning. Then you typically cross it to a close relative to get vigorous growth back.

Rocket Soul · 2025-04-22T23:24:26-0600

Wastei said:
My Meijiu 635w LED has been putting out the same output since 2019. It's pretty easy to measure and good genetics will show good expression even under less optimal lighting conditions.

You need adequate light but without the genetic potential you won't get where you want to be. I've seen diminishing result from taking a clone of a clone for 5+ years. Cuttings loose vigour after years of cloning. Then you typically cross it to a close relative to get vigorous growth back.

Tissue culture is supposed to be able to reset a cut but i have no personal experience with it.

go go kid · 2025-04-23T00:12:16-0600

soils change over time, what you get one year, wont be the same as another year. so bear that in mind,

go go kid · 2025-04-23T00:16:09-0600

Wastei said:
My Meijiu 635w LED has been putting out the same output since 2019. It's pretty easy to measure and good genetics will show good expression even under less optimal lighting conditions.

You need adequate light but without the genetic potential you won't get where you want to be. I've seen diminishing result from taking a clone of a clone for 5+ years. Cuttings loose vigour after years of cloning. Then you typically cross it to a close relative to get vigorous growth back.

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compassionateExotic · 2025-04-23T00:54:42-0600

hlvd def can degrade all that , shitty part is ur plants will be okay till mid flower and results are 25-50% leas thrich and yields

Rocket Soul · 2025-04-23T01:06:36-0600

compassionateExotic said:
hlvd def can degrade all that , shitty part is ur plants will be okay till mid flower and results are 25-50% leas thrich and yields

True but unlikely if its allways the same clones of the same mother with no influx - not sure but thats what it seemed like in first post

Rocket Soul · 2025-04-23T01:51:15-0600

compassionateExotic said:
hlvd def can degrade all that , shitty part is ur plants will be okay till mid flower and results are 25-50% leas thrich and yields

Im by no means an expert but ive heard hlvd has a specific pattern of affecting old growth more so if it was that there should be a pattern of less trikes the lower you go. Cant confirm though, also seems to be the natural pattern of trike

Question about aging LED lights

Samwiseman420

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Rocket Soul

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Samwiseman420

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BongChoi

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Samwiseman420

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GBAUTO

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Wastei

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Rocket Soul

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go go kid

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go go kid

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Creating Your Own Tissue Culture Lab at Home! - Plant Cell Technology

compassionateExotic

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Rocket Soul

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Rocket Soul

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