LED grow lights... input please.

Fuck, you are really a ppromoter ;-)

Well, I'm using only 10 Luxeons (forget the additionally High-Power LED's), and my plant is raising extremly! I don't need eight bars (and I don't have space for them), and I've paid only 60$ for my Luxeons.
And I know the SolarOasis-Growing-Thread, and if I compare the pictures (OK I know, the plants are in a different growing stadium), I really believe that my results could be better. But currenly I'm looking for comments or a solution for my climate problems!

my plant today. It isn't growing faster, but it is growing (light on time: 4,7%)!
I will increase the light on time and the frequency!

I'm thinking about picking up some LEDS what would be appropriate for something bout 10'x'10 room?

Use Blue and Red Luxeon's!
Attached you will find an actual image where you can see what they did with my plant ;-)

is it just me or do those plants looks shitty???

i wouldnt bother with LED its just not comparable to other lights

grow bar plus + 2ft T5.

Guess I have to keep my posts PG here. Got all deleted. Damn censorship. Anyhow, these pics out of sequence and are a week older than the ones i posted before it. I have started training the plants by tying them down. I will post some picks of that soon. Macro lens comin in the mail.

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Originally Posted by invision

is it just me or do those plants looks shitty???

i wouldnt bother with LED its just not comparable to other lights

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Most of these grows are done with 100 watts or less. Speaking of which, I wanna see a grow that matches the wattage of these other lights. Any growers out there with deep pockets that wanna contribute something back to the growing industry? Use the same amount of plants in a plot and compare a 1000 watt HPS with 1000 watts of red and blue. Since blue isn't up to spec maybe 800 watts of red LED + 200 watts of blue CFLs, or whatever ratio is optimal. Maybe 200 watts is more then the plants can absorb, maybe it's not. I don't know. A small amount of UV in there as well. Not to much though, and not focused in one area.

apologize if already noted (no time 2b thorough) but an excellent thread (some 50 pages long) exists on uk420 that chronicles a full blown led grow with 23watts. amazing. good luck. some of y'all (turtle) are REALLY informed about led's, eh?

porgy

edit: just noticed, it's my (almost) one year anniversary!!!

hi i think this led thing is great and want to give it a try.

i heard the recommendations were luxeon's but noticed
there were few types.
any recommendations?

and about pulsing. i hear pulsing increases the growth.
is there a simple way to pulse the lights?
i'm not really good with this high tech science gadget...

Default
Here are some updated pics as of 09/29. They are still under only 2 small arrays that you see above. I have 3 & 4 almost done, just been lazy. In the comparison photos, the ones in the large pots were transplanted about 4 days before the photos ~09/25. I will be transplanting the LED one's soon.

I must tell you the the 400w mh ones are growing much nicer, but they do have a better environment to grow in. They temps are better and the light is much stronger. But I will admit the LED ones look pretty good to.

I will take more photos tomorrow.

road runner>>> where did you get the machine to pulse?
and i read through japanese study that the pulsing is best at
200~400(400 being the best)μs.
so why don't you give it a try when you have time.
it increases the growth by 20% or so. :)

if anyone is kind enough to hit me with the info for the LED and Pulsing machine
e-mail me!!! [email protected]

I read this whole post and was worried....at first about the liddy-biddy LEDs the original guy was thinking, then it got worse with the grow/joke shop novelty LED bars, o-ghay-sis liddle array things - which are cool as supplements, or for that hightech application next to the office fish tank.

Some ghuy even said the only LED horticulture patents were owned by the toy company. HUNDREDS of LED horticultural patents exist - in the US alone!

Then people started talking about the Luxeons, which is the here and now of the LED horticultural edge (until the new Cree ones are out). First, for the completely ignorant and/or dogmatic, you're right. LEDs (as we knew them) aren't particularly great for growing.

But Luxeons, technically LEDs - Actually CLASS II LASER DEVICES - are completely suitable and are WAY (not "whay") better than the toy factory lights

Yes the Luxeons do work, and awesome. Sure you need a combination of blues (royal and regular) and reds (mostly reds, maybe a couple of red-orange, but more amber than red-oranges) to get the whole thing down, and the wiring is easy. Just practice some quick soldering.

UV ones only have NEGATIVE connotations to growth.

Just to buy the lux. stars, wire, and put on heat sink (as structural component) isn't so expensive. And if you compare the up front cost with the cost of ballast, bulb A and conversion bulb B, then the heat/ventilation issue.... and driving to the grow store, ordering through the mail...

Well, if you were cloning and using HID over LED, you' be plain stupid. Like dial-up versus broadband stupid.

I KNOW there are people who use LEDs such as Luxes, with awesome results, that's already a fact. Anything less than the Luxes really isn't worth doing, from a practical do-it-yourself view.

But I'm sure it's fun.

You should see what these things do with Masterlow and Lowryder strains!

And remember the code, never show pics of your finished LED grow! Ever!

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Originally Posted by maik

And remember the code, never show pics of your finished LED grow! Ever!

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Why is that?

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Originally Posted by maik

axAnd remember the code, never show pics of your finished LED grow! Ever!

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Originally Posted by stinkyattic

Why is that?

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Um, yeah... why no pictures?

Pictures make us happy... happy people.
Just ask Garden Knowm.... he looooves pictures.
Heck, you could put a picture of a seaLion in the middle of some hydro pics, and he'll love it!

<><><><>
RE: LowVoltageNerd, roadrunner, and PearlJamFan
THANKS for the updates!!!
Very inteteresting to see these experiments. :)

Peace everyone,

-turtle420 :cool:
.

Yea we need pictures..

or is it just bat guanno. . lol :rasta:

i agree with everyone else, if you dont have pictures to prove what your claiming then your full of shit.. ( no offence ) but proven methods should always be shown, one to spread knowledge and help new growers and experienced alike, and second to prove that your not just making it all up.. cause i dont believe you untill i see a setup and a plant growing under it..

although i think exploring LED growlights could be very important and cost effective, but with no information or good reviews obviously either not enough people have tested it (which i doubt, people seem to test anything that would even yield a .5 gram more than what they are using), or it just doesnt work.. please prove me wrong if this method is so great

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Originally Posted by Moose101

Most of these grows are done with 100 watts or less. Speaking of which, I wanna see a grow that matches the wattage of these other lights. Any growers out there with deep pockets that wanna contribute something back to the growing industry? Use the same amount of plants in a plot and compare a 1000 watt HPS with 1000 watts of red and blue. Since blue isn't up to spec maybe 800 watts of red LED + 200 watts of blue CFLs, or whatever ratio is optimal. Maybe 200 watts is more then the plants can absorb, maybe it's not. I don't know. A small amount of UV in there as well. Not to much though, and not focused in one area.

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Dude idk man...your still not getting the picture..the whole idea of using leds it to cut down on power..a 1000 watts of leds...oh shit that would be a ton...u wouldnt have enough space...unless your running high watters ....the whole idea is too keep power down and wasted heat/light and plant intake of needed NM's up...

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Originally Posted by ledgrower

...your still not getting the picture..the whole idea of using leds it to cut down on power..a 1000 watts of leds...u wouldnt have enough space...

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Some people seek maximum yield for their current power use. They are not seeking to reduce their power use.
If a 1000W HID gets you 2lbs....we want to hear some miracle statement like "1000W of LED can give you 4lbs". If it took more plants and more floor space to do so, I'm sure many a grower could accommodate it for the extra yield:)

Okay, could someone give me some guidance here.

I have extra time and no real life so this sounds like something I would like to try.

If you were going to start experimenting with LED's where would you begin?

What kind on Red and Blue led's should I get? What are the spec's of these lights and how many do I need?

I would like to make this simple. What would be the cheapest way to experiment with LED growing.

I would like to try this but links to NASA and technical papers fries my brain. Make it simple people. Kinds and spec's of lights needed for a experimental grow. How would you do it?

Any news about led grow lights?

i am still waitin for some proof that these things work.
We growers use hps bulbs cause they do the job and we show results here all the time.
come on dudes less talk and more results :smokin:

all the way through------last time I researched led techonology the INTENSITY is very lacking.

Intensity of natural sunlight is around 10,000 fc (foot candles), clear summer day at noon.

A 1K hortilux produces that intensity about 18" directly below the fixture----another 18" is only 2500 fc (in the shade relative to sunlight).

Alaric

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Originally Posted by Alaric

all the way through------last time I researched led techonology the INTENSITY is very lacking.

Intensity of natural sunlight is around 10,000 fc (foot candles), clear summer day at noon.

A 1K hortilux produces that intensity about 18" directly below the fixture----another 18" is only 2500 fc (in the shade relative to sunlight).

Alaric

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I will try to explain what I know (since I'm a physics person). If I'm wrong, anyone can correct me - I certainly wonâ??t take offence.

Basically, an LED is potentially the most efficient way of making light (pn-junction); itâ??s a diode. As some people on here are rightly pointing out, although light radiation can be given in intensity, it doesnâ??t mean anything to talk about the whole intensity of a source like the sun, if your including wavelengths that are unusable - one must concentrate on those particular colours that are (whatâ??s the intensity of blue and red in the white sunlight you mentioned?). Eg - take the sun, for example, say itâ??s about 1000w per M squared (power per unit area) on a good clear day. But plants are GREEN, which means that they reflect all that green light (they arenâ??t going to use it so we canâ??t compare it to the LEDs intensity). The suns spectrum is made of loads of colours.

So, now you have to take away all that green light (green and yellow and others, because plants only use red and blue right?) from the total intensity donâ??t you, because itâ??s meaningless to your plant to include things like yellow light intensity. But hey - itâ??s great to us humans because our eyes are really sensitive to that colour/wavelength (with me so far?).

So in order to make ANY comparisons to do with intensity, one must determine the intensities of the particular wavelengths of light (in a spectrum of emitted light from a source eg fluorescent/LED/sun) that our plants need.

With this in mind, I could see it is highly likely that a low intensity of 7W of LED's light (just the stuff our plants like) could outperform a 100W HID (because the HID gives out loads of light that the plant isnâ??t going to use).

It would be great if there were more reviews of this product online. I'm not saying itâ??s definitely brilliant, but it could be.

well.... this is the first time ive read this thread, and its pretty cool, i was thinking of looking into it myself a while back, but never got round to it, now ive read this board, it made me think of using LED's for side lighting, only like, 10 per light, i think if a company found out the right mix of LED's, for good vegg. and flowering spectrums, and a way to keep it simple and tidy, they could sell pretty well, i mean, think about it, any grow could benefit from a few LED light boxes just sat in each corner, it wouldnt get too hot, and your plants would love it, even if you just had a couple as boosters for a cfl set-up, ready to be switched on for flowering... its definately something i would pay for, if it existed...

my reasoning behind going LED was the total waste of electricity that even my highly efficiently bright wing fluorescent was making (110W), and not forgetting the highly suspiciously orange/yellow glow I'm forced to have emanating from my wardrobe. Lol - Itâ??s a nightmare!

IF these LED lights do what they are claiming to do (http://www.solaroasis.com/grow_shop....0Professional), then I'll be willing to convert some pounds to dollars and purchase from the US, but I cant understand why there arenâ??t any UK distributors yet.

If I go online looking for good and honest personal reviews by customers about LED grow lights, there arenâ??t any, just a lot of speculation - which, although more is always welcome, is no substitute for a real trial.

I'm not going to put these things down right away, because I have studied LED tech and know about what is poss. If these are good/get good enough (which is inevitable really), then all other grow lights will be obsolete, making all those ballasts and other things obsolete too; all those air cooled HIDS and all those range of products will go. It will mean grow projects can happen more out in the open in a house, rather than confind to some sellar, or spare room (in could be in the corner, behing a curtain), because the light the plant absorbs, we humans are not sensitive to (unlike the onslaught of light given off by flouresents and HIDs) and thatâ??s why Iâ??m really interested!

http://www.uk420.com/boards/index.ph...ic=62193&st=40

Cheers for that; itâ??s quite interesting! I think I'll go and buy an LED array. They (solar oasis) are claiming 100W HID's/250W fluorescents worth of useful plant light from one ruby bar (that is possible, because most a HIDs light is wasted, whereas no LED light is wasted). If thatâ??s true, thatâ??s enough light output for my small grow!

The grow shops (in our country) are claiming that LED lighting is not being looked into, as it isnâ??t productive enough; someone is not quite right; I just guess it'll cost me 130 quid and a fare amount of hassle to find out.

The bright red tail light is a very narrow spectrum. I have tried to use a white hight output leds in a tail light. Installed it in to the tail light. Put power to it , and no light came out the red lens. Reason a White led does not produce a spectrum of reds. NOW all the leds red, blue, green etc are all that way. Now if you look at the spectrum of growing its a smooth arc. NOT (freq's or angstroms )
IF leds worked it would be all over the internet and in every industral user would jump on them faster than a duck on a june bug.
O WELL back to using 30 year old florsents 4 ft bulbs and a 30 year old Mh ballast and a new bulbs.
O lord I see the light, zaaaaap , darn its a bug zapper.
Now think if LED did work effeciently industy would use them in a heart beat. After all its only a few Billion dollars saved each year.
Do pot grower know something industry does not know.
Bottom line my fairy godmusther is a whore and charges for her favors. :pimp:

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Originally Posted by oldsanclem

The bright red tail light is a very narrow spectrum. I have tried to use a white hight output leds in a tail light. Installed it in to the tail light. Put power to it , and no light came out the red lens. Reason a White led does not produce a spectrum of reds. NOW all the leds red, blue, green etc are all that way. Now if you look at the spectrum of growing its a smooth arc. NOT (freq's or angstroms )
IF leds worked it would be all over the internet and in every industral user would jump on them faster than a duck on a june bug.
O WELL back to using 30 year old florsents 4 ft bulbs and a 30 year old Mh ballast and a new bulbs.
O lord I see the light, zaaaaap , darn its a bug zapper.
Now think if LED did work effeciently industy would use them in a heart beat. After all its only a few Billion dollars saved each year.
Do pot grower know something industry does not know.
Bottom line my fairy godmusther is a whore and charges for her favors. :pimp:

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The reason why you donâ??t get a red from what is called a white LED is that there is no red light in the spectrum (hence your filter cannot filter it out as it isnâ??t there to begin with). Its really a blue LED with yellow phosphor (thatâ??s what I've learnt). Interesting experiment though! I donâ??t see how that could affect the chances of LED plant lighting succeeding? LEDs usually donâ??t emit a wide spectrum because of the way they make light. That is an advantage in plant lighting, as plants only use certain bandwidth of light energy, so what you said is actually an advantage for plant lighting and is not a problem at all really.

Quote:

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Originally Posted by oldsanclem

The bright red tail light is a very narrow spectrum. I have tried to use a white hight output leds in a tail light. Installed it in to the tail light. Put power to it , and no light came out the red lens. Reason a White led does not produce a spectrum of reds. NOW all the leds red, blue, green etc are all that way. Now if you look at the spectrum of growing its a smooth arc. NOT (freq's or angstroms )
IF leds worked it would be all over the internet and in every industral user would jump on them faster than a duck on a june bug.
O WELL back to using 30 year old florsents 4 ft bulbs and a 30 year old Mh ballast and a new bulbs.
O lord I see the light, zaaaaap , darn its a bug zapper.
Now think if LED did work effeciently industy would use them in a heart beat. After all its only a few Billion dollars saved each year.
Do pot grower know something industry does not know.
Bottom line my fairy godmusther is a whore and charges for her favors. :pimp:

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The reason why you donâ??t get a red from what is called a white LED is that there is no red light in the LED's spectrum (hence it doesnâ??t appear the other side of your filter). Its really a blue LED with yellow phosphor (thatâ??s what I've learnt). Interesting experiment though!

I really donâ??t see how that could affect the chances of LED plant lighting succeeding? LEDs donâ??t emit a wide spectrum because of the way they make light. That is an advantage in plant lighting, as plants only use certain bandwidth of light energy, so what you said is actually an advantage for plant lighting and is not a problem at all really.

if you want red light on your car's break lights, I would use red LED's that emit red light. With ordinary lighting, your having to filter out all those colours apart from the colour you want (i.e. red) - highly inefficient! with LEDs you just get that one colour you wanted emitted right from the source itself â?? no need to filter.

Hope this helps.

ooooops seems I posted twice by mistake!

http://ledsmagazine.com/ :thumbsup:

www.led-grow-master.com sells world wide and they have the bars that u can put in a corner grow...look them up....pc

L.E.D. lghts work very well in my opinion. i have a couple green star grow bars and some red l.e.d. panels for side lighting. they cost some xtra money but they work incredible for vegging (greenstars) and the red panels make an awesome side lighting for fat lower buds when used with my 430 hortilux i have gotten the fullest buds from top to bottom when usually my bottoms were quite stretchy in the past. all of the under branching thickens up amazingly adding about a 10%-15% overall yeild to my plants. wich is quite a bit. i would reccomend using leds bottom line.

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Originally Posted by chron-chron

L.E.D. lghts work very well in my opinion. i have a couple green star grow bars and some red l.e.d. panels for side lighting. they cost some xtra money but they work incredible for vegging (greenstars) and the red panels make an awesome side lighting for fat lower buds when used with my 430 hortilux i have gotten the fullest buds from top to bottom when usually my bottoms were quite stretchy in the past. all of the under branching thickens up amazingly adding about a 10%-15% overall yeild to my plants. wich is quite a bit. i would reccomend using leds bottom line.

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I was thinking of incorporating LEDs with CFLs. LEDs for side and bottom lighting due to there low heat. CFLs up top.

look at this it might help a little.. tech notes. Eco Green Star Grow Bar

this bar is supposed to be equal to a 250 watt but uses 12watts i got 2 and 2 red 25 bulb panels for side lighting that use like 15 watts or somthiing, with my 430 watt hortilux so my flower room uses around 460 watts but i get around an 800 watt light output. i think if you have the extra cash you should buy a few just so you can see..

I am going to be ordering LED lighting from Hong Kong.

I need specks on what requirements the red and blue lights need to grow tomatoes.

What would be the ultimate LED lighting system? How many red and blue lights and what kind of specifications on the LED output? Bulbs or light strips?

Looking to do a 4 plant cabinet system for smaller plants.

Would love your ideas. The sooner I figure this out the faster I will make it happen.

I am willing to share results here. I know LED is the future of growing.:jointsmile:

There is a company that makes a grow bar with leds it is called Oasis google search Plant grow lights led or led Light bar plant growth I dont know how to add the link