L.E.D. grow lights?

wackymack

wackymack

Well-Known Member
get it through ur mind,leds will not work.they do not meet the lumen output for a plant.b4 u say lumens dont matter,well they do,thats what determines if the plant will pretty much grow.higher lumen output,the more a plant will grow and yeild.enough said,just sign off and quit trying to market leds.they are only good for techno and shit.
 
ganjagoddess

ganjagoddess

Well-Known Member
Buddy (LED GROW) talking to you is like trying to teach arithmetic to someone who thinks there a physicist.

Step off your high horse.

I will make a Thread titled:

"MATHEMATICAL PROOF LED's ARE SHIT"

look for it.
 
ganjagoddess

ganjagoddess

Well-Known Member
He's not marketing nothing, he is a die hard believer that it will work.

I have seen him at other websites, standing on his soapbox, shouting the world will end if you dont believe LEDS are better than HID lighting.
 
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40acres

New Member
ledgrow said:
Right, because all LED grow lights are the same and if one doesn't work then they are all crap.

it wont work because plants need red and blue to develop properly

Eh? Go ahead and post the math. You can't make absurdly broad and sweeping statements like that... it doesnt even make sense. What 2 lights are you even comparing? Even if the LED does put out slightly less usable light (and im not sure it does), its taking only 105 watts as compared to a 400watt HPS and achieving similar results. If I had a 400 watt LED light it would put out usable PAR light equivalent to a ~1200watt and far more than your 400watt HPS. You do understand that light = energy right?

I dont really care to argue with you because you are saying stuff that shows a complete lack of understanding about how light, energy, and electronics work. It would be like trying to explain algebra to somebody who doesnt know arithmetic.

Wow, I sure am with you on that one. But in your case, maybe thats because you are not qualified to give advice on a topic you do not fully understand?

LEDs are growing and achieving similar and sometimes greater yields than an hps. And dont worry I will have more videos and pics to prove this soon.

You guys can be willfully ignorant if you choose, just like the old grandma technophobes who think their old methods are better than new science. Instead of being open to new concepts you just conclusively reject them because you fear change.
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Show us some more pics of your super fat yields with the leds. Those pics you posted earlier of all that good solid buds made me want some led's
 
blinkykush

blinkykush

Well-Known Member
Although LED grow lights have shown promise through plant research by NASA and many universities, it is unknown whether the results are applicable to Cannabis cultivation.
Traffic lights
* Automotive lighting
* Stage lighting
* Bicycle lighting
* Electric torches (flashlights)
* Domestic lighting
* Billboard displays
* Floodlighting of buildings
* Display lighting in art galleries to achieve a low heating effect on pictures etc.
* Train lights (Now common on nearly all modern and most older MU's and Loco's in the UK)


those are the uses for LED lights that wikipedia has listed.
growing plants isn't one of them.

i dont think it would be like an incandescent and not work at all, actually i think it would work i'm not sure how well , compared to fluoros and HPS/MH
not to bash led's but there is not enough data and way to much speculation to justify shelling out that amount of fundage to be a guinea pig.
 
Pidgeon

Pidgeon

Well-Known Member
maybe thats because you are not qualified to give advice on a topic you do not fully understand?
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Or maybe you are just clinging to a stupid decision and are too proud to admit you don't know what you are talking about? It is funny how you are one person saying that LEDs are better grow lights, when I have seen no evidence of it. I have even grown with a 400w led. Quit trying to convince people the world is flat, man.
 
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Lozt

Active Member
L.E.D.'s are the future of indoor cultivation with almost no heat to deal with you dont need allot of ventilation also the enegry draw is about 13% of a typical HPS or MH. They are light weights and the bulb hours are in excess of 5 years not 6 months like typical HID's. I have read allot on L.E.D's though i havent used them my self I truely feel that they are the way of the future. There are some drawback's for instance the light is unable to be reflected and keep its intensity there for the cover a less of an area for example the LED UFO only covers a 2'x2' space with adaquate density so u would need more fixtures. The cost is pretty high this is due to the cost of production of LED's the technology has been arround for a very long time but just recently have they started to be used in things like cars, and stoplights. The problem is that u need soo many little guys if they could make them bigger they would be brighter they are currently workin on that over seas and hopefully soon they will have bigger and brighter ones soon.
 
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Lozt

Active Member
p.s. Hightimes tested LED's VS. HIDs in a march 2008 issue the led lights produced a higher yield though it took 5 days longer to finish I dont know where u guys get your research from but you should deffinately do some befor u get on here and try to pass of your OPINION as actual FACTS. get some facts .. also the april 2008 issue had even more detail.
 
4

40acres

New Member
Lozt said:
p.s. Hightimes tested LED's VS. HIDs in a march 2008 issue the led lights produced a higher yield though it took 5 days longer to finish I dont know where u guys get your research from but you should deffinately do some befor u get on here and try to pass of your OPINION as actual FACTS. get some facts .. also the april 2008 issue had even more detail.
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Keep reading our high times, find out its all ads, become a real grower, and then come back and speak. Why dont you show us some pics of your beautiful buds grown by led?
 
ganjagoddess

ganjagoddess

Well-Known Member
Lozt said:
p.s. Hightimes tested LED's VS. HIDs in a march 2008 issue the led lights produced a higher yield though it took 5 days longer to finish I dont know where u guys get your research from but you should deffinately do some befor u get on here and try to pass of your OPINION as actual FACTS. get some facts .. also the april 2008 issue had even more detail.
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You have to be kidding me right?
 
Pidgeon

Pidgeon

Well-Known Member
Lozt said:
p.s. Hightimes tested LED's VS. HIDs in a march 2008 issue the led lights produced a higher yield though it took 5 days longer to finish I dont know where u guys get your research from but you should deffinately do some befor u get on here and try to pass of your OPINION as actual FACTS. get some facts .. also the april 2008 issue had even more detail.
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Give us a link to this article so we can know how full of shit HT really is. Do you also believe the advertisements that claim that you can get high legally from cat-nip and oregano? Unless we get some PICTURES of high yielding bud grown by LEDs then all of this is just hearsay. Don't try to say that a grower is wrong when you yourself have absolutely no experience when it comes to growing. Otherwise you are just speculating without any hard evidence. Also when you say we have no research, does that include where I say I have grown with a 400w led? I have used LEDs to grow (and just to clarify: they were located 2-3 inches away from the plant the entire grow) and was sadly disappointed in the results. I am not the only one claiming these results. So, how about YOU do some research instead of reading a magazine and pretending to know anything about growing hydroponicly (or even growing period).
 
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indes

Active Member
hmm, I had to get in on this one because I have a degree in Electronics Engineering... ;-)

as far as LED output goes, yeah, of course it outputs light that'll work to grow ...

BUT... Look at the specs on the LEDs used in your light .. (BestHongKong.com Cree, High Power LED, XLamp, XRE )

First off, Color Temperature..
Corelated Color Temperature (CCT) @350mA rated 80lm - 5000k Typical, 10000k Max.

For vegging, you want something more... something around daylight? Higher in the blue wavelength.. The T-12s I use are 65000k... well more than 10000k.. this would be great for flower time though.. no?

Next is the actual rating of Lumens....

Lumen Rating @ 350mA lm - 80 Typ // 100.4 Max
Lumen Rating @ 700mA lm - 136 Typ // 167. Max
Lumen Rating @ 1000mA lm - 176 Typ // 221 Max

Notice how there is no minimum stated.. Isn't that somewhat odd.. ? I mean, with the 'intensity' knob on the side, does the light go completely off when its on its lowest setting.. ? (That knob is called a rehostat or variable resistor - it drops current) or do they not really care about minimal values.. ? In any case, thats per LED...

The hitch here: Your lamp states on the side it only uses 1.5 AMPS of power, which, is a little over your lumen rating on its highest level.. What happens when you drive 50 LEDs with 1.5 AMPS?

Each LED gets 1.5 AMPS / 50 LEDs, which leaves 30mA (without loss) for each LED. What kinda lumen rating is that.. ? Probably below 80 PER LED. Oh, this doesn't include losses (which you can't avoid - you don't have room temperature superconductors.) and it doesn't include the power running the fan....

I think efficency wise, I'd be better off to spend my money on other products, but if it works - it works.. In the end, you shouldn't see any light for the smoke if all goes well :joint::hump:

And those are my $0.02 from an engineering standpoint.

Note: I'm not bashing your setup, I find it odd you get so angry at someone who may or may not know the little details behind it all... Mearly stating facts. :peace:


Edit: There are 56 lights, not 50. Lowering my current per LED estimation. Also, for info on which LEDs are used please see LED Grow Lights - LightBlaze 400 which states "56 CREE XLamp High Power LEDs" -- you can't win arguments without references and true facts unless your last name is "Bush" ..
 
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ganjagoddess

ganjagoddess

Well-Known Member
I say fuck it, Lets all stop trying to help these people, let em grow with LEDS and think they are doing something great, it only makes our grows all that more immpressive.
 
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Lozt

Active Member
Becom what u want Im just informing u of the info that I read like it or not its a fact that led light is more efficent, less stress full on plants and perfectly suitable for cannabis growth in both veg and flowering itrs not my fault u fail to read in to things befor u start takin shots at people I personally do not grow with LEDès not because they are inadequate but because the ammount of Leds needed to light a space that 4 1000 w cover would run me arround 20000 dollars its just not worth it. I hope I dont know what a real grower is supposed to be Im just a guy who has a hobby But I do have a degree in Horticaultural engineering so maybe that might qualifiy me to be a real grower. I think my friend u should concentrate less on being an internet tough guy and more on reading and doing research and maybe u wouldent find the need to be so hostile. I hope you do some reading from what ever sources u see fit and quit being such a dick .. Dick . Have a good night of watching internet porn and tryin to piss people off. Take care sweetheart
 
4

40acres

New Member
Lozt said:
Becom what u want Im just informing u of the info that I read like it or not its a fact that led light is more efficent, less stress full on plants and perfectly suitable for cannabis growth in both veg and flowering itrs not my fault u fail to read in to things befor u start takin shots at people I personally do not grow with LEDès not because they are inadequate but because the ammount of Leds needed to light a space that 4 1000 w cover would run me arround 20000 dollars its just not worth it. I hope I dont know what a real grower is supposed to be Im just a guy who has a hobby But I do have a degree in Horticaultural engineering so maybe that might qualifiy me to be a real grower. I think my friend u should concentrate less on being an internet tough guy and more on reading and doing research and maybe u wouldent find the need to be so hostile. I hope you do some reading from what ever sources u see fit and quit being such a dick .. Dick . Have a good night of watching internet porn and tryin to piss people off. Take care sweetheart
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Still no pics, and the guy with a horticultural engineering degree cant quote so we dont know who he is talking to.
 
4

40acres

New Member
Lozt said:
Becom what u want Im just informing u of the info that I read like it or not its a fact that led light is more efficent, less stress full on plants and perfectly suitable for cannabis growth in both veg and flowering itrs not my fault u fail to read in to things befor u start takin shots at people I personally do not grow with LEDès not because they are inadequate but because the ammount of Leds needed to light a space that 4 1000 w cover would run me arround 20000 dollars its just not worth it. I hope I dont know what a real grower is supposed to be Im just a guy who has a hobby But I do have a degree in Horticaultural engineering so maybe that might qualifiy me to be a real grower. I think my friend u should concentrate less on being an internet tough guy and more on reading and doing research and maybe u wouldent find the need to be so hostile. I hope you do some reading from what ever sources u see fit and quit being such a dick .. Dick . Have a good night of watching internet porn and tryin to piss people off. Take care sweetheart
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Bet that up led boy. You have 4 1000w lights in your grow, but you feel the need to take up for led's. Send in just a pic of your lights, along with your screen name on a piece of paper next to them. Thats all I want, just one pic of your 4000w setup.
Quit trying to feed these people a bunch of shit and stop the madness. You go and lie to your friends, and I'll lie to mine, but lets not lie to eachother allright? We all know you dont have shit but 2 cfl's and a litbrite someone sold you after you read that they were able to grow a peachtree in a week and a half.
Maybe you should build a cube out of the litebrites,and put the tiniest plant you can find in the middle of it and see if you can get an 1/8 of an ounce.
Your a mutt. Walk on home son.
 
ganjagoddess

ganjagoddess

Well-Known Member
Lozt said:
Becom what u want Im just informing u of the info that I read like it or not its a fact that led light is more efficent, less stress full on plants and perfectly suitable for cannabis growth in both veg and flowering itrs not my fault u fail to read in to things befor u start takin shots at people I personally do not grow with LEDès not because they are inadequate but because the ammount of Leds needed to light a space that 4 1000 w cover would run me arround 20000 dollars its just not worth it. I hope I dont know what a real grower is supposed to be Im just a guy who has a hobby But I do have a degree in Horticaultural engineering so maybe that might qualifiy me to be a real grower. I think my friend u should concentrate less on being an internet tough guy and more on reading and doing research and maybe u wouldent find the need to be so hostile. I hope you do some reading from what ever sources u see fit and quit being such a dick .. Dick . Have a good night of watching internet porn and tryin to piss people off. Take care sweetheart
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Hes talking to me... haha

And buddy you may have passed whatever courses to get a Hort Degree.

But you sure as hell didnt pass math.

If YOU calculate THE INTENSITY OF LEDS, they dont even come close to CFL's.

YOU have to understand that intensities do not directly ADD together no matter how many leds you cram into something, yes they can create a higher reading between two sources of lights but NO MATTER HOW MANY POINTS OF LIGHT YOU HAVE the general output is the same as the one point of light for the whole fixture.

THIS IS why CFLS are crap and Flouro tubes can barely get by, and are barely adequeate for Veggin.

If you understood the basic fundamentals of light you would get that.

A HPS is a single point of light, that puts out all that red and blue.

Your Leds are tiny little points of red and blue.

GETTING THROUGH YET.????

Comon this isnt rocket science.
 
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