DIY LED grow lights experiences

stardustsailor · May 18, 2013

But I do know that people are growing with only white LEDs just fine and that is just fine with me. However, I still believe you need more white LED wattage to get the same job done that a more defined spectrum(blue:red) or tailored spectrum would need. Also, not to mention the lost energy with the phosphor coating.

Still to see a Blue & red combo led grown plants to flower as fine as a white & red combo grown ones ...
plants speak by themselves ....
Even cheapo asian whites give (almost ) better yields that Blue & red leds do ....

Proof ...
Where's the proof ?

Fonzarelli · May 18, 2013

http://lib.tkk.fi/Diss/2008/isbn9789512295029/article6.pdf

On lettuce, but still worth reading.

This article states a good blue:red ratio of 10% but they also say they have better results with fluorescent light(k temp?) which has a much higher blue %.

Not the best read, but still makes me wonder why floros are more favorable than the LEDs they used. From what I've read lettuce needs more blue light.

stardustsailor · May 18, 2013

Lettuce has nothing to do with mj ....
Neither the "goals" of culturing them are same ...
lettuce needs more blue light ,in order to stay leafy (goal#1 ) and rich in nutrients (goal#2 ) .
As also ultra- compact (goal#3 ) to maximize number of plants per "bed " ...

Fonzarelli · May 18, 2013

stardustsailor said:
This is nicely demonstrated by aquatic plants. Take a look at the absorption graph of most deep water corals. Really really huge violet-blue requirements and very little red because there is an abundance of red light at the bottom of the sea.

? R u sure ?

This absorption spectrum of water (red light absorbs 100 times more than blue light), together with the five-times greater scattering of blue light over red light, contributes to the blue color of lake, river and ocean waters.

http://www.lsbu.ac.uk/water/vibrat.html

My brother ,I'm afraid there's not only that ...
It's plenty of things you have to ...hmmm... "re-evaluate " ...
If not study ...

Lol, got them switched around somehow. Nice catch. Also, the depth is to 164ft so not quite that deep. Didn't quite word it right, but what's your explanation for the higher blue requirements of coral?

What are these "other" things that need to be re-evaluated? How is this helpful if you keep it a mystery? You make it seem like you have unlimited knowledge, but don't really say anything.

Fonzarelli · May 18, 2013

stardustsailor said:
Lettuce has nothing to do with mj ....
Neither the "goals" of culturing them are same ...
lettuce needs more blue light ,in order to stay leafy (goal#1 ) and rich in nutrients (goal#2 ) .
As also ultra- compact (goal#3 ) to maximize number of plants per "bed " ...

Are you saying that chlorophyll has nothing to do with growing cannabis? Because lettuce and cannabis BOTH utilize this process. Not really sure where your argument is going.

Actually it does relate to the veg part of cannabis perfectly. Compactness, health, and leaves all make for a great veg and lead up to flower.

All I was trying to point out to begin with is that increasing the Cyan, Green and Yellow bands is not going to yield as much as increasing Red and Blue would. Not sure how the topic changed, but if you read the cites they talk about the signaling effects that green light has and why you wouldn't want to increase those wavelengths higher than red or blue.

Fonzarelli · May 18, 2013

stardustsailor said:
But I do know that people are growing with only white LEDs just fine and that is just fine with me. However, I still believe you need more white LED wattage to get the same job done that a more defined spectrum(blue:red) or tailored spectrum would need. Also, not to mention the lost energy with the phosphor coating.

Still to see a Blue & red combo led grown plants to flower as fine as a white & red combo grown ones ...
plants speak by themselves ....
Even cheapo asian whites give (almost ) better yields that Blue & red leds do ....

Proof ...
Where's the proof ?

Arent all of your products based on white LED technology. When did you start adding any other colors to the panel?

Btw white LEDs are composed of blue, green, yellow, orange, red wavelengths. You can still create white light w/o using a single white led.

PSUAGRO. · May 18, 2013

Fonzarelli said:
I like the spectrum, but the lamp was strobing really bad so haven't been able to even use it. Over in icmag CMH thread a guy said he uses it with an HPS ballast which contradicts Philips instructions which are M47.

Not sure what to think at this point, but really want to use it. I will be setting up 2x315w Agro in the near future, just got to do the wiring for 220v.

Here's another good cite about spectrum:
http://www.lightinglab.fi/enlighten/publications/internetui_akvile.pdf

Hmmm that's got me a little worried, was planning on buying some(860w allstart) for a side project.......faulty bulb???? have you tried emailing philips or these guys http://dnalightingsolutions.com/ and ask what the recommended mag ballast is, or if in fact its faulty........

edit .... maybe its a possibility that it doesn't play nice with a pulse start ballast, and prefers a probe start.............what the cord length on your remote ballast, that also was an issue with the old retro whites

stardustsailor · May 18, 2013

Fonzarelli said:
Lol, got them switched around somehow. Nice catch. Also, the depth is to 164ft so not quite that deep. Didn't quite word it right, but what's your explanation for the higher blue requirements of coral?

What are these "other" things that need to be re-evaluated? How is this helpful if you keep it a mystery? You make it seem like you have unlimited knowledge, but don't really say anything.

Listen now .....You and some others ...

It is not me the one that has unlimited knowledge ,but the web ,the libraries ,the research centers, universities and other educational/research institutions .....

What I do have is a continuously un-saturated "thirst" for the TRUTH ,behind the fuzz ,the noise ,the gling-glongs ,bam-bams and so on ....

I do like spending my nights studying and reading all sorts of stuff ,usually about Physics,Chemistry,Biology,Botany,Electronics...
but also I 'm pretty fond of Philosophy,Alchemy,Occult ,Mysticism,etc ....

Now for sure that doesn't make my mind heighten to a nearly super human level ,neither I have unlimited knowledge ....

I search for the truth ....

Nothing more ,nothing less ....

Other than that ,I'm an ordinary mortal human ,made out of flesh 'n' bones .

As for my "notice " .....

I was referring to a rather ...weird ..question of yours .....
In another thread ....
Regarding basic plant biology and botany knowledge ...

Say that ,I was not expecting ,such a question ,from you ....

stardustsailor · May 18, 2013

Fonzarelli said:
Are you saying that chlorophyll has nothing to do with growing cannabis? Because lettuce and cannabis BOTH utilize this process. Not really sure where your argument is going.

Actually it does relate to the veg part of cannabis perfectly. Compactness, health, and leaves all make for a great veg and lead up to flower.

All I was trying to point out to begin with is that increasing the Cyan, Green and Yellow bands is not going to yield as much as increasing Red and Blue would. Not sure how the topic changed, but if you read the cites they talk about the signaling effects that green light has and why you wouldn't want to increase those wavelengths higher than red or blue.

Of course I'm not saying " that chlorophyll has nothing to do with growing cannabis" ...
Neither I say that blue is useless ....

increasing the Cyan, Green and Yellow bands is not going to yield as much as increasing Red and Blue would.

Don't be so sure about it .....
Personally ,I'm not 100% sure about that ...
It is not that "simple " issue .....

1) [url]https://www.rollitup.org/led-other-lighting/547085-diy-modular-led-light-12.html#post8224871

2) https://www.rollitup.org/led-other-lighting/547085-diy-modular-led-light-6.html#post8049971
[/URL]

stardustsailor · May 18, 2013

Fonzarelli said:
Arent all of your products based on white LED technology. When did you start adding any other colors to the panel?

Btw white LEDs are composed of blue, green, yellow, orange, red wavelengths. You can still create white light w/o using a single white led.

Here's the answer to that ...

Fonzarelli · May 18, 2013

PSUAGRO. said:
Hmmm that's got me a little worried, was planning on buying some(860w allstart) for a side project.......faulty bulb???? have you tried emailing philips or these guys http://dnalightingsolutions.com/ and ask what the recommended mag ballast is, or if in fact its faulty........

edit .... maybe its a possibility that it doesn't play nice with a pulse start ballast, and prefers a probe start.............what the cord length on your remote ballast, that also was an issue with the old retro whites

Yeah I thought maybe pulse start would be better but I even tried running it on a galaxy 1000w electronic ballast and same thing occurred.

Why would how the lamp ignites make a difference? Pulse vs probe, wouldn't it only be if it ignites or not?

The strobing starts after about 20 minutes of on time. I kinda think it has something to do with being a vertical lamp. Not sure. Yeah, contacted philips and still waiting. Tried 4 lamps all the same.

Have to try a HPS ballast next I guess. Doesn't matter since I'm going to try the CDM elite Agro, should be better anyway. And I don't have a 1000w HPS ballast to try.

Wanted to do a side by side, but it will have to wait. My grow is on hold and under T5s ATM.

Fonzarelli · May 18, 2013

stardustsailor said:
Of course I'm not saying " that chlorophyll has nothing to do with growing cannabis" ...
Neither I say that blue is useless ....

increasing the Cyan, Green and Yellow bands is not going to yield as much as increasing Red and Blue would.

Don't be so sure about it .....
Personally ,I'm not 100% sure about that ...
It is not that "simple " issue .....

1) [url]https://www.rollitup.org/led-other-lighting/547085-diy-modular-led-light-12.html#post8224871

2) https://www.rollitup.org/led-other-lighting/547085-diy-modular-led-light-6.html#post8049971
[/URL]

This is my only argument which is based in science. I don't think the "middle zone" is as beneficial as you do. Please keep in mind that WW mostly consist of 590 and higher, not so much green, cyan or yellow. So they are mostly blue, orange, red, deep red. Kinda fits the answer doesn't it?

PSUAGRO. · May 18, 2013

Didn't know it was firing up fine and starts flickering twenty minutes later, yes your correct then pulse/probe would make no difference then. Is your breaker/line dedicated to just the all-starts or is other equipment running on it????your wiring good/ground/etc....??

edit: sorry for the highjack SDS!!!!, but I'm purchasing these bulbs soon and this kinda bums me out

Fonzarelli · May 18, 2013

No. It's something with the lamps. Very disheartening for sure. Greenwithenvy says he uses a switchable 1000w set to HPS and works fine so you might want to consult with him over in Icmag. Let me know if you get it to work.

Fonzarelli · May 18, 2013

Sometimes I ask someone a question NOT because I don't know the answer, but to find out what THEY think. That way I get an unbiased point of view.

Is that hard to understand?

Btw this is GS thread lol

PSUAGRO. · May 18, 2013

Fonzarelli said:
Sometimes I ask someone a question NOT because I don't know the answer, but to find out what THEY think. That way I get an unbiased point of view.

Is that hard to understand?

Btw this is GS thread lol

Lol your right!!!.............sorry GS, he hates HID talk

......I'm banned from ICMAG, but i'll try to get in contact with him, haven't bought the bulbs yet so I may just wait this shit out. Have you got pricing on the elite agro systems yet??, I hear DNA solutions is a fucking rip though...

mkmll · May 18, 2013

Another documents....

Spectral Characteristics of Lamp Types

i trust them. (Top right corners pictures)

BTW we read too much document like this. But Which type led tested ? 1W, 3W, 5W ? Osram, Cree, Bridegelux, Chinese ? Degree, Canopy distance ? UNKNOWN

its really hard to understand...

:peace:

Fonzarelli · May 18, 2013

Tell ya this much, ya fuck up your soil mixture or nutes and the whole spectrum argument goes to shit. Lol

Ph is going to effect things way greater than slight differences in light quality.

green surfer · May 20, 2013

the 2 C99 plants yielded 40g under 34W of light (fans included)

interesting posts Fonz' (I'm sorry if i don't take part in the discussion, i have to manage my time, but i'm reading interesting things, thanks)

Fonzarelli · May 20, 2013

green surfer said:
the 2 C99 plants yielded 40g under 34W of light (fans included)

interesting posts Fonz' (I'm sorry if i don't take part in the discussion, i have to manage my time, but i'm reading interesting things, thanks)

What was his soil mixture and nute regimen for the C99? I would like to know what is working well for LEDs.

DIY LED grow lights experiences

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