LED grow lights... input please.

I found this earlier in the thread...

Quote:

---

Originally Posted by turtle420

I've got in my grow notebook the following quote from a post:::
<<<<<<<<<<<<<
for good growing you need blue, red and deep red spectrum. for clorophile A you need 400-430nm of blue and 650-670 nm of red. for clorophile B you need 420-470 nm of blue and 620-650 nm of red.
peak absorbtions are at A: 425 and 660 nm, and at B: 450 and 630.
the power of spectrum should be stronger in red spectrum (arround 85-90%), others arround 5% of each. i did some test grows, but i only used 470 and 630 spectrum and the plants looked just fine. if you give them all the spectrum (for A and B type), they will grow even better.
>>>>>>>>>>>>>

---

Jesus guys! This thread has grown unbelievably! :) THAT'S GREAT!

I need to catch-up on all the posts, but everything looks super interesting. I need to read the super-post by LEDgrower... sounds very informative.


My thoughts on the LEDs:
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.

Now we've got to see if they're more, um, "better" for growing weed... ;)

Again, I trully want to give input and comments, but I haven't had a time to read everything... I'm running out the door today pretty early (sun still hiding), but later today I'll be here.

Peace, love and good chronic to all, ;)

-turtle420 :cool:
.

forgot toanswer the question on sizing.....those bars are about 22 inches long and 3.3 inchs wide and only being only a cuple of inchs thick...

I was searching my files, and found this...

It's a time-lapse video of a LED grow... don't ask me where I got it... no idea... You might find it interesting. :)

Hope you enjoy,

-turtle420 :cool:
.

ha.. im telling ya man..its the future....but u see there those lights there are purple....think about it... what 2 colors make purple....red and blue primarys,, they just mixed the lights.... of the 2 colors..it would be interesting to see the spectrum of that light...s..thats why those work but there not even using the rit mixure for optumum growth... u still can add green soo the plant looks good..

I believe the LED's would work for small closet growers but I still feel the sulphur lamp would be a better alternative for large scale growers.

LEO must be shitting themselves trying to figure out a way to detect these lights! LED's are the ultimate stealth light source, no doubt.

ha... thats rit..finnally some agrees with me... and with a 8 bar array system for leds.. you can project the same amout of light equivant to a 1000 hps setup on a 3 by 3 or 4 by 4...however sulphur lamps?? your out of your mine...lol..they produce like 2 times the light of the SUN...how would u use those...unless u were to hang that up from like 10000 feet in the air...lmao..look for my website coming out soon

www.ledgardening.com I have a temp page up but in the next week or soo illl have it up and running with full product/ reviews,actual testamonies, and press releases of the upcoming future of led in growing... takecare

that time lapse clip was from the nuturelite website.. however it can't necesarily be compared to the growth to a mary jane.

Quote:

---

Originally Posted by ledgrower

what 2 colors make purple....red and blue primarys,, they just mixed the lights.... of the 2 colors..it would be interesting to see the spectrum of that light

---

the way i see it, thats wrong.. u can't make the spectrum because you mix two colors.. purple has a specific spectrum, look at the scale.. THATs why the plant is growing so well.. there is another contingency on the scale that ppl neglect (even I had, before I saw it)... in addition to the blue, u should also add the purple spectrum LED to it, to get that extra push in there, u can see how well its performing on that plant without the blue..

Quote:

---

Originally Posted by ledgrower

u still can add green soo the plant looks good..

---

adding green is a waste of money.. its not as much of a potency factor as the others..

Quote:

---

Originally Posted by ledgrower

you can project the same amout of light equivant to a 1000 hps setup on a 3 by 3 or 4 by 4

---

with LEDs? no, u can't.. LEDs are based on spectral intensity, not illumination..

as for sulfur lamps.. how much heat output is given off??

saying that that 1000 watt hps is giving off 75 % heat and 25 % usable spectum as compared with a led setup where its giving 99.9% usable spectum yes u can..and also u wont burn the plants..

OOOOOOOOOOOh, yeaah yeah

The sulphur lamps give off very little heat. NASA developed both the LED grow systems as well as the sulphur lamps so they could find indoor plant lights that give off little heat. It seems they have a problem in space losing heat inside the space craft once it's generated so they needed something more efficient than HID.

Either of them will grow cannabis no problem. There is a LED grow movie that I found but the director had just been arrested for creating it. I'm trying to get the company to post it on file transfer software so we could get it even though they obviously can't sell it any more. I saw some still shots from the movie though and they had some very definite fat ass buds. Will keep you posted.

The reason I believe sulphur lamps are better for large scale grows is that with all the extra PAR the difference in yield from one crop would make up for the cost of the light. Also, not having to compensate for the heat from the lamps would make up for a lot of savings as well, not to mention a better security profile.

Neither of the systems will burn your plants as they generate almost no heat. IMO, LED's would be for small scale closet growers and suphur lamps for commercial grows.

By the way, the LED seller said it would take about $3500 to match PAR with a HID. I quote:

"Yes, they are AWESOME! However, to replace 1 1000 HPS, it takes 20 Red and
10 Blue Lights which translates to around $3500! WHEW! It is good to make
the one time investment, but not for the faint in the pocketbook."

End quote.

dependin on where u go for ur stuff, yeah it could be like that.. i say just get the bulbs and fuc the fixtures/ballasts.. waste of money, u can build that ur self and save a few..

I'm still waiting for the sulphur lamp... and actual pictures of a cannabis plant being grown with LEDs.

That's what I'd like to see...

Me too, turtle420. For me it's just an academic interest as I don't grow but I definitely will if it gets legalized for medical or recreation in my state. I will have some pics from a grow operation in Europe using the sulphur lamps in about 1 1/2 months so I will post them as I get them.

As for the LED grows, until I get that movie from a grow movie using LED's my hands are tied. However, NASA knew they worked and if their claims are false it's a massively detailed scam, to the point of improbability. I think they will grow cannabis just fine. The main question I have is potency. Cannabis plants produce resin to protect their leaves from UV rays and from drying out. Without that heat stress I'm just not sure if resin production would be as high. Just like weed grown outdoors is stronger because of the sun compared to indoor weed.

Interesting question but one I would not be able to answer.

Turtle420, this is a link to the site that made a movie about growing cannabis with LED's. The producer got arrested and they will not release any copies but just the pic on the website says a lot.


http://www.americanmarijuana.org/

well that movie would talk alot about temps.. hps and heat producting lamps made the novice grower succeed in pretty good %'s b/c of the heat they created with the lights// with the use of leds there is little to no heat discharge to keep the plants warm soo u most provide a sutible eco system for proper growth... with the root temps beening off on a led setup your pretty much screwed as in possiblity of success..u still need a able inviroment..this can be solved with like a 20 $ heating pad if your area is not the warmest....

lets get a few things strait.... for that quote...


"Yes, they are AWESOME! However, to replace 1 1000 HPS, it takes 20 Red and
10 Blue Lights which translates to around $3500! WHEW! It is good to make
the one time investment, but not for the faint in the pocketbook."

End quote. """

thats a freakin rip off... i wouldnt touch that with a 30 foot pole....... and lets make it clear theres MORE then just one led system out there ( copy catts) ... deffinately soo when your comparing a product that has gone through 4 years of R and D by specialist and scienctist to come up with the most usable spectrum for plants and patent there findings to that of the guy saying that its going to take 3500$ worth of tracfic light leds (thats a crap load by the way...(over 30 little things dangling above you...).. to buy a similar set up.thats bs ( thats theres not ours) that shows how poorly it preforms or how much there ripping you off...with our systems an 8 bar aray puts out the equievent of 1000 watts hps...and that 8 bar aray the light is focused down to a 3 by 3 or 4 by 4 area..depending on distance away...( thats a whole lot of light for a small area) ....yea it cost a bit more money roughly 1500 or soo .....but the benifits out weigh the price...cool/ no noise operating, low electrical consumption ( less then 20$ a year) and 7 to 10 years of bulb life or 100,000 hours...can hsp beat that> good luck...

You just cant keep us all hanging?:confused:

I dont know if this helps but I have spoke with Phillips in the Neitherlands a few times and for balanced plant growth as different vitamins are produced and broken down at different wave lenghts, the proper spectrum consists of 5.3%red 36.3% blue, and 58.3%yellow light to get a proper average. Nanometers can be converted into Hz. I was working on a project to try and grow using acoustics a while back as Hz are the direct opposite of Nm. Say if the pure light of the visible spectrum of the rainbow starts at 375Nm and ends at 750Nm then 750Nm = 375Hz and 375Nm = 750Hz. It is all about the wavelenghts.
One love
c

I know, ledgrower. There are other companies that sell LED grow systems for less. Believe me I'm not endorsing his products over anyone elses as I haven't done a cost comparison. It was the technology working that I am interested in.

I guess it doesn't matter who sells the LED's as long as they emit in the correct PAR spectrums. After that would come cost comparison and quality.

Leds, 10 day month, free power, wind power, solar power. None of them have happened to save money with out Federal support
Free wind power cost $0.14 to produce, sells for $0.09 (The poor people pay the differance)
Solar is almost the same, But take like 15 years to break even on the polution to produce the cells.
Pot month is still 30 days long +-1.0003
Wind power and solar power as yet to make ONE Cent.
The new hybr, cars require gas to get to $10.00 a gallon for the SAVINGS ti take place. Also you must drive them 60,000 miles a year.
IN There life time they use up, more epa stuff than a standard car
Now Leds NASA has a unlimited budget to grow in space.
They use florsent panels ,,, flat florsent panels.
The sulfur lamp cost <$3200 and produces a little more than a 1400 watt bulb , but requires more power than a 1500 mh. After what 12 years its going to be comming out soon,(as of 1995)
Save time dig a hole in the back yard 6 ft deep and 1 ft wide and plant you Fairy god muther.
She is a whore and charges for her favors.

ahh w/e u say mr...lol....

lol yeah, wat he said..
w/e u say mr lol

Quote:

---

Originally Posted by oldsanclem

Leds, 10 day month, free power, wind power, solar power. None of them have happened to save money with out Federal support
Free wind power cost $0.14 to produce, sells for $0.09 (The poor people pay the differance)
Solar is almost the same, But take like 15 years to break even on the polution to produce the cells.
Pot month is still 30 days long +-1.0003
Wind power and solar power as yet to make ONE Cent.
The new hybr, cars require gas to get to $10.00 a gallon for the SAVINGS ti take place. Also you must drive them 60,000 miles a year.
IN There life time they use up, more epa stuff than a standard car
Now Leds NASA has a unlimited budget to grow in space.
They use florsent panels ,,, flat florsent panels.
The sulfur lamp cost <$3200 and produces a little more than a 1400 watt bulb , but requires more power than a 1500 mh. After what 12 years its going to be comming out soon,(as of 1995)
Save time dig a hole in the back yard 6 ft deep and 1 ft wide and plant you Fairy god muther.
She is a whore and charges for her favors.

---

ha yea...i think hes in the wrong forum...

:what: :what: :confused: :what: :what: :confused: :what: :what: :confused: :what: :what: :confused: :what: :what: :confused:

I'm back :dance: oldsanclem is also not taking into account the full data available for those statistics but like you said wrong forum. So I'm designing my own LED system to take advantage of certain cannabis traits that current models available do not exploit. Also, wavelength is being tailored to cannabis. I have the preliminary schematics drawn up now. I need access to AutoCAD to do the final version though. Actually I have an older version I just need a PC to run it on. I don't think my silly box diagram is enough for manufacture.

Fermentnation ;)

Sooooooo....

Anybody has any LED-grown plants yet?

yeah what turtle said. somebody DO IT!!!!!!

: )

Guess what.. I got 2 48-LED blue spectrum 470nm bulbs on the way :)

Way to go sheist :thumbsup:. Your going to need some reds to though. The only thing stopping me is a total lack of money. I have a good design, although it will probably have to be manufactured. When I do go ahead with this I will have my production schematics completed by the power of autoCAD.

Sheist: Do you know the specs for the individual bulbs? What is the degree of projection? Supposedly a 15º bulbs light will penetrate to lower parts of the plant much better than a 30º bulbs light since the beam is more focused.

When they show up take some pics of the bulbs and scan any relevant info that comes with them and post it here, please. I would really like to see all that.

What was the cost? Where did you get them?


FERMENT

yea i have seen some plants being grown with leds..the guy did a full 2 month grow diary... He was very amazed on how fast they grew and the THC formation. Although he did have a case of root rot but thats what from his own doing...still it worked very well.. Fermentation and sheist Pm for info regarding construction of a setup..Im only telling a few and you look like the peps that want to get this ball rolling...i just got off the phone with individual who practically told me everything how to do it. ialready know but this cleared a whole lot up... ( not mentioning names nor company)... spacing, the rit NM....total bulbs, setups and times... aight...im outa here...

ok guys heres a pic i snaged of a guy thats flowering under leds...take a look...

Hey LEDGrower!

I like the Pot dog shot... I'm sure I'll do it in the future with one of my pups... ehhehehe....

As to the LED growing, please post all that you've gained... correct NM, spacing, etc...

This is very interesting.... to say the least.

Yeah was that guy flowering under LEDs using the Solaroasis product?

Any good news on the LEDs?

Man, I'm starting to think that LEDs are a goverment conspiracy...

Everyone always "blah blah blah" about LEDs... and no fucking plants grown with LEDs...

Just wait a few weeks ;-)

LED CAUSES CANCER WHEN IN YOUR BODY!!!!


/enough bullshit..

I've read a test on hennepdesk.nl and it doesn't really bring anything extra to the table cause led's only look brighter cause of the frequency of the lightpulses. the biggest advantage is that you can choose your own colors and color spectrum by mixing all kinds of colored leds.

@ the end of the line it's not worth the investment. Maybe you should look out for plasma-lighting instead...

Why is everyone complaining about cost? I have been searching for about a week for some good LED's I could use to try a grow. I live in the SW and temps will seen be over 100 every day. I have my cabinet in an oustide shed and it has perfect temps 8 months of the year. During the summer months I have to run an AC unit to keep the cabinet cool. Add up the cost of electricity, and replacement HPS bulbs and LED's pay for themselves within a year.

Here is an order I just placed recently.
1,000 of KTL053AxI-T, 632nm, 7800mcd, 120 degree angle, $38.33/K
2,000 of KTL051AxI-U, 660nm, 5800mcd, 25 degree angle, $35.38/K x 2 $70.76
500 of KTL050BUCI, 464nm, 4000mcd, 30 degree, $116.54 for 500
Shipping by EMS, $30.00
Total $255.63

Before I did more research, I had picked up some 400nm Violet, and 470nm 10mm blue with 40000mcd 15 degree. I will also throw in some Green for the hell of it.


That's $.07303 per LED, sounds good to me. Or should I just get 3K of the 660's?

I know I still have to buy the breadbord or PCB to solder them. But a good 400w HPS is about $200-400. I will save more than $200-300 this summer alone if I can grow with these.

What do you feel about my spectrum.

Here is a link with others I have been talking to,
http://www.icmag.com/ic/showthread.p...6&page=4&pp=15

Damn 5 minute timeout!

Here is some more info on the LEDs.
KTL053AxI-T, 632nm, 7800mcd, 120 degree angle, http://www.kouhi.com/pdf/114KTL053.pdf
KTL051AxI-U, 660nm, 5800mcd, 25 degree angle, http://www.kouhi.com/pdf/114KTL053.pdf
KTL050BUCI, 464nm, 4000mcd, 30 degree, attached JPG

pearl..your goin to need some higher nm ranges for the 600s...email for further [email protected]///