LED Lighting

Alexio

Active Member
Ok, so just a simple question...

Is it possible to grow with white/blue light LED lighting? Has anyone tried it.. I mean, is there goin to be enough light for a small vegging room? Its quite power efficient, trying to source out an inexpensive solution

:confused:
 

bigballin007

New Member
I have read where nasa is expeirmenting with using leds for growing and they have gottin results with other plants than MJ. I would love to see someone expeirment and I have considered trying this method but as of yet it would be very expensive to purchase enough Leds to even try it. Leds prices must fall before this will be researched by me.
 

Seedlessone

Well-Known Member
Among the adantages of LEDs:
-Very little heat (CFLs are pretty hot, compared to LEDs)
-very efficient (if have 400W of LEDs... Jesus! You'll have a mini-sun!)
-They produce narrow frequencies of light, instead of many colors of light
Compared to HID's intensity/lumens, they suck... BUT, because their produced photons (light) are on a specific range (not all over the place), they're more efficient.
 

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bigballin007

New Member
Among the adantages of LEDs:
-Very little heat (CFLs are pretty hot, compared to LEDs)
-very efficient (if have 400W of LEDs... Jesus! You'll have a mini-sun!)
-They produce narrow frequencies of light, instead of many colors of light
Compared to HID's intensity/lumens, they suck... BUT, because their produced photons (light) are on a specific range (not all over the place), they're more efficient.
are these yours? If they are where did you get the leds? How much were they?
 

funkdabassman

Active Member
they are really expensive, and too new and unproven for an ethical everyday solution. though, i do admit when the price comes down and the tech advances they could be a pot growers paradice. it is definitly something to keep an eye out on!
 

Seedlessone

Well-Known Member
they are really expensive, and too new and unproven for an ethical everyday solution. though, i do admit when the price comes down and the tech advances they could be a pot growers paradice. it is definitly something to keep an eye out on!

its here and usable
 

funkdabassman

Active Member
they are here but not worth it. not till the tech catches up with the price. i worked with plant leds in the lab and they are not worth it.
 

Alexio

Active Member
They are here but you can buy a nice 400-600W HID light for the price of one of those LED light bars.
But the energy/electricity used by the HID would be far more than the LED, right?

Well, thanks for all the feedback.. Tis one of my grow curiosities settled :roll:
 

beyonder

Active Member
"They are here but you can buy a nice 400-600W HID light for the price of one of those LED light bars."

yes but ONE led will last you 7 years of conitnued use.. not to mentionall the money you will save on electricity, power for cooling.. all teh unneccesary cooling equipment.. heat heach ache..

how long does a puny hid last for?? riight.. shit for shit..

think about it .its not complicated..

hid = full spectrum and heat exchange while doing it..

its been scientifically proven plants for the bulk of the time, only are using max 35% of the full spectrum for photosynthesis, that means right off the bat, 65% of all the "intensity" every hid lover raves about is lost..

so now after you have mopped up all the tears of wasted money and electricity.. hid's are like heaters.. that entergy has to come somewhere.. it doesnt just magicially appear.. so if you are starting with 100watts..

a good 20% conservativly is probably wasted on the excess heat it creates
then the remaining 80% the plants are only requiring 35% of..

so when you take 100watts, x .8 x .35 you are only left with 28 watts of real energy converted to plant use. a good high powered led that can produce the same 30 watts will save you all the fuss of heating issues, and power bills and not bother with all the wasted energy and almost useless spectrum oflight.. and it will last 7 years.. wanna know where to get the best ones and which ones rae the best ? go here..

Don's LED Main Page

for those still doubht full... pick up a calculator and ask your self how many pathetic hids youll have to waste yoru time buying.. calculte how many bills ..calcule added risk for having high bills, calculet how much extra energy is wasted on cooling.. then also add the cost of buying all the equipment for cooling.. then once you have that figure. compare it to leds..

for more info.. check out..

WHY LEDs MAKE BETTER PLANT LIGHTS
 

beyonder

Active Member
Led is the future of growing.. I will welcome the day HID joins the dinasours..

=============

Osram has developed a small light-emitting diode spotlight that achieves an output of more than 1,000 lumens for the first time. That’s brighter than a 50-watt halogen lamp, thereby making the device suitable for a broad range of general lighting applications. The Ostar Lighting LED, which will be launched on the market this summer, can provide sufficient light for a desk from a height of two meters, for example. Its small size also enables the creation of completely new lamp shapes. Source: Siemens

Powerful Little Light: LED With 1,000 Lumens
 

videoman40

Well-Known Member
WoW, that's some fancy math you got yourself there buddy.
28watts from my HID? Hmmmmm

You go on to tout LED's as being here and now?

Your thinking is all wrong dude, sorry. Both about HID's and LED's.

Have you ever done, or even seen an led grow first hand?

If you had, you'd know that most of the stuff they say about LED is marketing hype, the technology will get here, but it isnt here yet.

In fact, most LED growers simply give up on the LED's and "upgrade" to CFL's to finish there grow, go figure.
Peace

"They are here but you can buy a nice 400-600W HID light for the price of one of those LED light bars."

yes but ONE led will last you 7 years of conitnued use.. not to mentionall the money you will save on electricity, power for cooling.. all teh unneccesary cooling equipment.. heat heach ache..

how long does a puny hid last for?? riight.. shit for shit..

think about it .its not complicated..

hid = full spectrum and heat exchange while doing it..

its been scientifically proven plants for the bulk of the time, only are using max 35% of the full spectrum for photosynthesis, that means right off the bat, 65% of all the "intensity" every hid lover raves about is lost..

so now after you have mopped up all the tears of wasted money and electricity.. hid's are like heaters.. that entergy has to come somewhere.. it doesnt just magicially appear.. so if you are starting with 100watts..

a good 20% conservativly is probably wasted on the excess heat it creates
then the remaining 80% the plants are only requiring 35% of..

so when you take 100watts, x .8 x .35 you are only left with 28 watts of real energy converted to plant use. a good high powered led that can produce the same 30 watts will save you all the fuss of heating issues, and power bills and not bother with all the wasted energy and almost useless spectrum oflight.. and it will last 7 years.. wanna know where to get the best ones and which ones rae the best ? go here..

Don's LED Main Page

for those still doubht full... pick up a calculator and ask your self how many pathetic hids youll have to waste yoru time buying.. calculte how many bills ..calcule added risk for having high bills, calculet how much extra energy is wasted on cooling.. then also add the cost of buying all the equipment for cooling.. then once you have that figure. compare it to leds..

for more info.. check out..

WHY LEDs MAKE BETTER PLANT LIGHTS
 

beyonder

Active Member
http://www.ledtronics.com/ds/plantled/Commercial-Growing-Analysis-Recommend-s.pdf

if you dont believe me on how much of glorified hid energy is wasted read this Technical document.

this details exctly how to compare a hid to a led.

1,000 watts total rated output
-730 watts output in IR range (heat)
270 watts yielded as plant grow light
wavelengths
(i was way off, hid are way more ineffiecient than i could have ever dreamed..)

162 watts of light yield is in white light components
(primarily yellow to green wavelengths) inefficiently
used by plants (8-12% plant absorption)
108 watts of light energy are
supplied for general plant growth
on high efficiency wavelengths
16 watts light yield available for plant
growth in white light components
Total growing energy of 124 watts per bulb
(108 direct energy + 16 watts low efficiency)
Yields 10.79 Mol/m​
2 per 18h day of actual plant
growth energy per grow chamber 4.1’ x 7’ plot
(Based on measurements of 87 Mol/m
2 per 18h

day per 6K watts of HPS)


enjoy all led doubters.

its worth atleast dedicating a portion of your crop to try.
 

videoman40

Well-Known Member
I am enjoying, your quoting marketing hype.
It's nothing more, they are trying to get you to buy LED's.
I realize that there is wasted output on HID lighting, although it's not anything near what you claim though. Your 730 watts while it is a bit high also, it is not totally unusable either as you seem to imply.

You can read, and post all you want, until you've seen it work, keep it to yourself. I've seen it done, and it dosent work yet.

Rather than trying to get someone else to "dedicate" part of there grow, waste several months on plants that will never bud, why dont you volunteer yourself? Step on up to the plate.
Peace
 

beyonder

Active Member
videoman 40

"I am enjoying, your quoting marketing hype.
It's nothing more, they are trying to get you to buy LED's.
I realize that there is wasted output on HID lighting, although it's not anything near what you claim though. Your 730 watts while it is a bit high also, it is not totally unusable either as you seem to imply."

im not claiming or implying anything.. that technical journal is.. i conservativly estimated 80% loss due only to heat.. but whether one can believe that source material which i agree i cant verify its as high as 75%..

again, im not implying anything, im merely quoting research, since when does a plant need heat to grow? we've all seen how much heat hid's put out.. honestlythat 75% may seem high.. but to me honestly.. its believeable.. but it defenitly merrits more research. Am i going to sit here and claim plants only need red and blue wave light.. no.. infact the only operation i have seen that has worked.. used 80% led and 20% hid.. its the perfect mix.. as plants need probably very little of the rest of teh spectrum..

"You can read, and post all you want, until you've seen it work, keep it to yourself. I've seen it done, and it dosent work yet."

if you don tlike it.. dont read this topic.. this topic is for people interested in tossing their hid's to change for something better..the very nature of this topic is to explore that alternative no matter how ridiculous you may think it is. and I have seen it, and I have seen it work.

"Rather than trying to get someone else to "dedicate" part of there grow, waste several months on plants that will never bud, why dont you volunteer yourself? Step on up to the plate."


im not trying to get anyone to dedicate anything. Use hid's till your house turns into a sauna..and the po-po crash your door down.. All im saying is what i have seen, and what i have seen work. and I am currently setting up my own which i will post pictures and a log.

peace.
 
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