perfect led grow light? [Archive] - Green Grass Forums

Nikg92

04-13-2009, 04:17 AM

I'm not wanting to burst anyone's bubbles, but that technology already exists. :( I remember reading an article on it in a High Times Magazine a couple months back(Along with some sweet pics of crops):hippy:. But I believe it would be impressive to work on a led light, in combination with a light that emits a lower violet-blue color(440nm to be exact) which no LED can do.:wtf:
I have been interested in this topic for quite some time, I have more information on my blog: Smart-Hygro (http://smart-hygro.blogspot.com/)

ayhoung

04-14-2009, 02:27 PM

Right now, we are working with high power LED and no, they are not cheap. its not so much the leds are expensive (which they are), but also we our heatsinks/drivers add the majority of the price. That's what we're working hard on reducing the price of .

Our company tends to provide few high power leds rather than many many low watt leds, because it improves stability.

Maybe this would be a better question: What's wrong with current led grow lights like procyon and lightblaze 400? do you guys tend to build your own or buy preassembled ones like these?

Thanks!

luciddreamer

04-15-2009, 01:37 PM

Basically you just need to make it cheaper, that's all. Last time I checked you can spend up to $2000 and that's just not viable for many people.

Also a lot of them are only good for one or maybe two plants as far as I've seen, maybe if possible make them able to light 5 or so?

I'd be happy to test it for ya when ya done! :jointsmile:

the image reaper

04-15-2009, 03:08 PM

I'm not wanting to burst anyone's bubbles, but that technology already exists. :( I remember reading an article on it in a High Times Magazine a couple months back(Along with some sweet pics of crops):hippy:. Smart-Hygro (http://smart-hygro.blogspot.com/)

sorry, friend, but I can't consider 'High Time's as a legitimate source of much anything ... they're whores, that pimp whoever spends advertising money with them (their Cannabis Cups, are a prime example) ... I repeat, I have seen not ONE impressive plant grown SOLELY under L.E.D. sources ... when they do, I'll try to buy it ... :smokin:

filo6942

04-15-2009, 08:51 PM

sorry, friend, but I can't consider 'High Time's as a legitimate source of much anything ... they're whores, that pimp whoever spends advertising money with them (their Cannabis Cups, are a prime example) ... I repeat, I have seen not ONE impressive plant grown SOLELY under L.E.D. sources ... when they do, I'll try to buy it ... :smokin:

This is not impressive? LED ONLY

http://boards.cannabis.com/attachments/grow-log/183082d1206654529-led-growing-instructional-grow-log-dsc00563.jpg

oldmac

04-29-2009, 09:58 PM

... I repeat, I have seen not ONE impressive plant grown SOLELY under L.E.D. sources ... when they do, I'll try to buy it ... :smokin:

hey IR,

Here's about 50+ plants that are soon to be impressive.
That's 660watts of LED, lighting abt 4'x4'.

funiman111

05-04-2009, 03:28 AM

I would love to see one

killerweed420

05-04-2009, 04:29 PM

I think there has been ample evidence that led's will work. Just have to get the lumens up comparable and the price comparable to HPS. The systems I've seen are just too expensive to consider right now.
A system that would put out 100,000 lumens for about $400 would be a good price.

headshake

05-04-2009, 04:32 PM

how about DIY kits that will keep the price down? at least as an option for the technically inclined?

-shake

MadSativa

05-05-2009, 06:52 PM

I agree all those pics need more time, and then you will see LED's are not up to par with a good HPS.

**Some one show pics of the final week so every one can see the problem.

I recommend just trying to mimmic a HPS in lumen output, then add some UVB to the mix as well. Unless the entire ceiling is covered in LEDs I dont see the LED happening to soon. Cost for high out put LED's is expensive then you need thousands of LED's for just one grow room. when faced with a 30 dollar a month light bill for a 1000W is far more less considering the amount you gain in harvest

DreadedHermie

05-07-2009, 09:47 AM

what would be a reasonable price? we will do our best, but just as long as quality is priority

I apologise; I am unable to find on your website any specifications for your emitters: voltage, current, wavelength, manufacturer, binning, etc.

I am also unable to find documentation of implementation of your products in horticultural applications. Specific information in that area is welcome.

How competitive with units of this type can you be?

Product Description
Output Power of lamp: 50 or 100W
Wide beam angle: 120
Rated Voltage range: 100-265V
LED bulb: 80 units 1.33W per unit
Light wavelength Blue: 450nm, red: 650nm (for growing only)
Ratio of Red and Blue light 8: 1 (we also could change the ratio according to your special requirements)
Dim R: 270mm, H: 80mm, Round style
AV. Life: 60000h
MOQ.: 10units
Master carton size 565*470*310=0.09stere
Retail packaging size 555*295*115=0.002stere
Warranty 1 year
N. W G. W 5.0KG/unit 5.5KG/unit
Sample prices of 50w FOB WUHAN: USD85.00
Prices (50-300units) of 50w FOB WUHAN: USD78.00
Prices (301-500units) of 50w FOB WUHAN: USD75.00

Sample prices of 100w FOB WUHAN: USD135.00
Prices (50-300units) of 100w FOB WUHAN: USD118.00
Prices (301-500units) of 100w FOB WUHAN: USD108.00

Thank you for your interest,

Dr. Herman

Bubbleblower

05-08-2009, 01:15 AM

I suggest to be stubborn and not take the RQE curve for your spectrum.
That is only based on how leafs of just a few crops react and other effects were never taken into account.
Most things we have no idea about really and only one thing is absolutely sure: no light beats the sun so far!

You can take that spectrum to start with and run controlled experiments to see if any other configuration can beat that. These experiments are very important to get specific know how and market your product.
The more tests you run the more chance you get ahead of the competition.

You have to hand your sets to the very best and most respected growers.
They can give you the best input and are opinionleaders in the market. Meanwhile you have the results published in the magazines and forums and get a strong and trusted name. Very important after so many people got ripped of.

A good (water)cooling system would be very important.
Also you'd need a timer for the far reds and a little extra moonlight.

How much for a 200W light?

ForgetClassC

05-17-2009, 02:27 PM

Not to be a dick, but there is a typo on your companies website. Homepage, pole, it says, "Would you switch to LED's if they were ony a little...."

Just thought I would let you know.

hearseking

05-22-2009, 05:44 AM

oldmac

05-22-2009, 03:23 PM

someone post pics of plants at end of flowering not vegitative that does not mean shit to me ,ufo is pure junk a fire alarm with l.e.d. on it ,what about the procron or whatever its called that supposed to give 400

I have used Procyon 100s, and they work very well. Even I who have experimented with LEDs I was surprised how well they will bloom. But to think that thay are an "identical" exchange to a 400hps is just silly. I used two (2) to replace a 400watt MH in my mom room. But that alone was a 50% power savings. They will not veg a plant to 4+ ft, they lack penertration, but if you keep your mom's to a reasonable height they work fine.

BTW: I sold them as part of a aero/fog ponic grow tray set up. The Procyons will actually work from cutting to finished bud....and only raise the temperture of a 3'x3' tent enclosure abt 2-3 degrees over ambient.

In my experiments I have found that even a 600watt HPS is not adequate to cover a 4'x4' grow area effectively, it is no match to the 1000watt HPS. But in an interesting experiment I found 2- TI Pro-blooms at 330watts each will compete easily with a 1000watt HPS.
The 1kw HPS actually uses 1,150w w/ballast vs. 660w; that's 490watts savings and none of the heat provblems associated with HPS. Plus using grow trays designed for SOG style plants (138/4x4 tray) I can outproduce the 1kw HPS by a good margin.

Will you see a picture of a large 4' or more indoor plant grown indoor under LED? Probably not, it would take way too many LEDs, but why grow that big indoors? We just don't have a difference in light preference, we have a difference in grow philosiphy. I don't believe in growing large plants, with big fat stems, and lots of branches with all the associated leaf material indoors. Thats the stuff I'm going to throw away....I just want big fat buds! Small plants, many of them gives me the effeciency to use LEDs and that increases effeciency more.

hearseking

05-22-2009, 06:49 PM

what about weight thats what i am curious about how much could be produced from one led system on each plant so if you used one Procyon 100 on 2 plants or even one how much final weight ,by the time you add your nutes and electric and not even get an ounce its a waste of time and you are actually loseing money

oldmac

05-23-2009, 12:07 AM

Hearseking,

Hard for me to put a wgt to light per plant, like I've said before I do SOG style grow (single cola plants <16-18") in the aero/fog trays. But the 3'x3' trays I described above have 60 plant sites and averaged 6.5grams per plant, dried and manicured, first grow out. Took a little over 7weeks to go cutting to finish running WW (being attended to by noobs). Should go 7-8 grams with a little tunning. The potency is as good as HPS, and most folks think better.

I have been doing and still doing experiments with pure LED light, LED/T5 hybred lights, HPS light and I want to try HPS/LED but have not gotten to that yet. In a grow that I'm a partner in, we are growing in dirt (well Pro-Mix) and are experimenting with various lights vs. 1kw HPS, veg times vs plant size and dispproving to my partner some of the long held myths abt growing.

In an above post there is a picture of 2 TI Problooms, here's two pictures to show you where it is, side by side with HPS. See, I really am putting LEDs up against "the big boys".

hearseking

05-23-2009, 02:49 AM

I wonder if a t5 setup would grow more weight than a led systemm by itsself,I had seen some thing in the h.t mag were the guy was using t 12s but plansts didnt get enough weight for it to be worth the trouble.Wish they would just make one that was of the highest quality and not keep doing one after another that says of this is 10 percent better than the last one but i guess thats how they make there money

ayhoung

05-25-2009, 07:16 AM

right now, we're considering a 1 blue and 1 red high power LED in this type of housing. What do you guys think?

DreadedHermie

05-28-2009, 09:28 AM

[attachment=o218926]

Red and blue's nice... :D

CmeSmoke

06-21-2009, 12:56 PM

What do you guys think would make the perfect LED grow light? What do YOU want that current grow lights can't provide?

One of the things the current growlites cannot provide is the ability to luman the bottom branches and light the buds UNDERSIDE of the plant.

I thought that a LED that was shaped either like a horseshoe, or hinged,(kind of like a donut birthday cake) that would lay around the base of the plant,(or connect to the rim of the planter) and would either shine upwards, or have probes that encompass the LED "ring",could be adjusted up into the branches where the light is not penetrating....there's way too many buds not getting enough light down inside the plant.

With the low heat the LEDs give off, I think they would be a great canidate to create a light that could be placed right beside the plant without harming it.

the image reaper

06-21-2009, 02:06 PM

you should post this in the 'LIGHTING' section ... besides, why would you illuminate the underside of a plant ? ... does Nature do that ? :wtf:

CmeSmoke

06-21-2009, 04:16 PM

why would you illuminate the underside of a plant ? ... does Nature do that ?

Well, no nature doesn't do that.....but neither does she grow things inside as a rule.

I grow indoors so maximizing each plant yield is a must(can only have 3 mature plants at a time:(), and there's alot of little buds that aren't getting the light they need. I'm thinking that an LED light that "canopies" basicly the whole plant, even the underside AND in throughout the branches would do exactly that.

If anyone has tried this, i'd like to know if it was successful or not. I would like to try it, and in fact am going to purchase a few LED panels and modify them in the best possible way to get 360 degree lighting....

here is the site I was looking at...

450 High Power Red Lamp LED Plant Grow Light Panel :: Gardening Equipment :: TheLaShop (http://www.thelashop.com/catalog/450-High-Power-Red-Lamp-LED-Plant-Grow-Light-Panel-p-716.html)

oldmac

06-21-2009, 05:53 PM

Hey CmeSmoke,

Do yourself a favor and skip those panels. I don't think they will do very much except cost you money and make you think LEDs don't work. Even with putting them low or to the sides of a plant as supplemental lighting they are so weak, IMHO it is not worth the effort.

Cheap panels like that are based on weak 5mm LEDs, that have even less penetration then most LEDs used today. Probably better off with a UFO knock-off.

CmeSmoke

06-21-2009, 07:18 PM

Thanks oldmac :thumbsup: any tips I get ,i'll use. Thats what I was thinking about those particular lites, they might not be strong enough.... thats why I responded to this thread. To see what product was out there and how to improve it. Share an idea or so...

Do you think that if I could get light down inside the plant safely will allow the buds down in there to grow better? I would think that lighting those hard to get areas would greatly enhance the yield.

Man, I've got SO many buds taking off inside the plant it's crazy!:jawdropper: and I only topped it once....(which is growing stunted, by the way)....

Maybe the author will respond.

Bubbleblower

06-23-2009, 01:58 PM

A problem with that is that cannabis points its leafs towards the light.

But may be a multiple layer light might be an idea. Only 15% of light penetrates through the top layer, no matter what kind of light you use.
If the leds don't get too warm, you can give most of the plants the max amount of photons.

Now, which leds are the coolest :rasta:

CmeSmoke

06-23-2009, 02:57 PM

I cleared out about all the sucker leaves down inside and around the girl, and she likes it quite well....even though,I can see the possibilities of having LEDs close to the bottom branches, as Bubbleblower stated "max amounts of photons.:thumbsup:

But may be a multiple layer light might be an idea.

I was thinking adjustable at least...for me, growing out of buckets, something that clips on the rim and I can raise as needed, maybe a few "T" bars with a half dozen or so(whatever is effective) LEDs embedded in them.

DameDicker

07-13-2009, 06:10 AM

Hi ayhoung,

The absorption spectrum of cannabis with comparison charts and discussion at the following link. This may provide your R&D people a reference point to design a grow light for our "specific" needs:

High Times > Light and the LED Zeppelin: Will LEDâ??s Sink or Soar in the Growroom? (http://hightimes.com/grow/nico/5449)

Also, our site had my mind reeling with possibilities that in the not too distant future your company will develop the perfect product line for us.

::ALT Aeon Lighting Technology Inc. ::: (http://www.aeonlighting.com/en/product.aspx?cid=C_00000060)

You might want to add a subscription link to email updates.

Good luck. :thumbsup:

cityokie

07-13-2009, 05:04 PM

i just tie my little ladies down.as soon as i finish veggie stage i take a piece of yarn and make a small hole in the side of my containers,run the yarn around second top most set of leaves and lay them down horizontally.i still clear at least the bottom 2 sets of leaves and a waterleaf here and there.talk about bushin out,HOLY COW!:rasta:
cityokie:thumbsup:

hollywood33

07-15-2009, 09:11 AM

Ive developed a 150 300 and 600 watt led grow light with a full spectrum including 440nm and 420nm and more. You should hit me up.

hollywood33

02-16-2010, 04:30 AM

catlova

02-23-2010, 04:05 AM

I saw this DIY LED grow light setup made with christmas lights. Wonder if it works good?

Cheap LED Light and Grow Box The Cheap Vegetable Gardener (http://www.cheapvegetablegardener.com/2009/01/cheap-led-light-and-grow-box.html)

ForgetClassC

02-23-2010, 03:28 PM

I wish you luck, I've been waiting for an effective LED grow light, for years ... I still have not seen ONE single photo, of an impressive plant grown solely under an LED lamp ... the technology just isn't 'here' yet, but I'll be waiting ... :smokin:

You should check out stra8outtaweed's albums.

-C

khyberkitsune

02-24-2010, 01:52 AM

Sorry brotha's but its been done..

growledhydro.com made the perfect led grow light.

Check out these links to documented grows going on with these led grow light panels:

Irish Boys GLH 600w led grow - 420 Magazine (http://www.420magazine.com/forums/journals-progress/112167-irish-boys-glh-600w-led-grow.html)

360w LED Perpetual SOG sponsored by growledhydro.com, Pineapple Express and Gigabud. - 420 Magazine (http://www.420magazine.com/forums/journals-progress/111011-360w-led-perpetual-sog-sponsored-growledhydro-com-pineapple-express-gigabud.html)

I can't say they've made a perfect panel - for one, 11 bands is a slight waste, IMHO, at least by my research. I've tested the entire visible range and measured photosynthetic rates by observing the amount of O2 production. There are only 5 particular wavelengths that should be paid attention to, at least according to my research, and in reality only three of those really need to be the primary ones.

These are looking good. Going to have to see if they're going to match my custom-designed panels which should be in just in time for me to run a starting flower cycle. I have 6 Hindu Skunk clones under 20W 70:30 R:B dual-band LED. One is a runt, but it doesn't matter, I only asked for 5 from my old progeny, so six is a gift. The two in the custom multi-site bucket in the back right will be transplanted into an old PC case that I have completely sealed except for airflow (no carbon filter, legal patient, no need to worry, even the management knows,) and lined with Chromalux paper (Too lazy to futz with foil or mylar, just cut this stuff and glue it in, done, hardly a crease, just a few bumps.) I'll be putting in a 60:40 red:blue tri-band panel in the top of the PC case. The two in the black professional buckets are going to become mothers. The white Krusty bucket will be vegging constantly for a while, trained, and eventually put under a 120w panel of the same configuration. I've got two lines of lights - I have a vegetative purposed line (which has worked awesomely for all of my plants) in low wattages, and I have a bloom line in the higher wattage range. This is to help deliver even more efficiency.

http://imgur.com/ZSCbOl.jpg
http://imgur.com/XjSpvl.jpg

Also, we haven't seen g/kWh or g/W numbers, yet, these are not finished grows. Until I see those, I'll have some reservations. I only have a couple of problems getting 1.5g/w in 12/12 from clone SoG with my admittedly absolutely-crappy 50:50 dual-band penetrator bar (high-focus lower power LEDs for deeper penetration, not for area coverage) but I have managed to do it and the bar is only 16W.

stra8outtaWeed

02-24-2010, 02:36 AM

You should check out stra8outtaweed's albums.

-C
thanks my friend!:jointsmile:

glad you like my grows :hippy:

khyberkitsune

02-24-2010, 04:05 AM

thanks my friend!:jointsmile:

glad you like my grows :hippy:

I'm more interested in the lights and the end results. Plants look great but I want a smoke report (or an analysis if you get those for your crop!)

And holy mother what kind of LEDs are those? Those look like minimum 2-3W a piece

stra8outtaWeed

02-24-2010, 04:28 AM

I'm more interested in the lights and the end results. Plants look great but I want a smoke report (or an analysis if you get those for your crop!)

And holy mother what kind of LEDs are those? Those look like minimum 2-3W a piece

smoke report~my joints burn smooth grey ash..no running...medication lasts longer...and because of increased resin production it burns longer:jointsmile:

3 watt LED's ~150w per bar :smokin:

i am growing my best meds ever....i am the analyzer!

khyberkitsune

02-24-2010, 04:32 AM

smoke report~my joints burn smooth grey ash..no running...medication lasts longer...and because of increased resin production it burns longer:jointsmile:

3 watt LED's ~150w per bar :smokin:

i am growing my best meds ever....i am the analyzer!

That's what I'm talking about - I got the same results on oily herbs (increased oils/terpene content, deep flavor) from my LEDs.

Got any UVB additive lighting in there or just going with what looks like a dual spectrum? What's your total wattage in that setup?

Oh, and since I can't see due to the blur - what's the emission angle on those LEDs? I can't tell if they've got a focusing cup reflector around each one or if it's just a solid SMD mounted to star then heatsink.

stra8outtaWeed

02-24-2010, 04:41 AM

That's what I'm talking about - I got the same results on oily herbs (increased oils/terpene content, deep flavor) from my LEDs.

Got any UVB additive lighting in there or just going with what looks like a dual spectrum? What's your total wattage in that setup?

Oh, and since I can't see due to the blur - what's the emission angle on those LEDs? I can't tell if they've got a focusing cup reflector around each one or if it's just a solid SMD mounted to star then heatsink.

120 angle and they do have a focusing cup on each one of them...good eye!

got 5 bands of light going~660nm, 630nm, 600nm, 460nm, 3500k warm white

total wattage is 900....i could prolly get same results with 4 lights but the power strip had 6 outlets....so i felt obligated to use them all! :smokin:

khyberkitsune

02-24-2010, 05:10 AM

120 angle and they do have a focusing cup on each one of them...good eye!

got 5 bands of light going~660nm, 630nm, 600nm, 460nm, 3500k warm white

total wattage is 900....i could prolly get same results with 4 lights but the power strip had 6 outlets....so i felt obligated to use them all! :smokin:

I'd like to share some info with you to help you optimize your light.

I'll start off by saying it appears to me as if the 3500K warm white is there mainly for illumination/visual purposes, yes? That's fine - most of those are a bright blue LED with phosphor, no biggie, they still emit quite a bit of well-usable light.

600nm I would remove entirely. My testing data showed that the best response for red was from 630-670nm, lower isn't worth wasting the energy on, plus you get closer to yellow emissions which act as growth inhibitors.

The rest is perfect. I'm surprised I could see focusing cups, guess I've been making this stuff for so long that even blurry pics give me enough detail!

I figured you'd need the 3W diodes simply because of the fixed distance. Keep your eye open for my grow located http://boards.cannabis.com/hydroponics/181616-swc-micro-grow.html I'm using 1W diodes in a much smaller environment, and I hope to push a fat yield from such a small area.

Keep growin!

khyberkitsune

02-24-2010, 08:11 AM

I'd like to share some info with you to help you optimize your light.

I'll start off by saying it appears to me as if the 3500K warm white is there mainly for illumination/visual purposes, yes? That's fine - most of those are a bright blue LED with phosphor, no biggie, they still emit quite a bit of well-usable light.

600nm I would remove entirely. My testing data showed that the best response for red was from 630-670nm, lower isn't worth wasting the energy on, plus you get closer to yellow emissions which act as growth inhibitors.

The rest is perfect. I'm surprised I could see focusing cups, guess I've been making this stuff for so long that even blurry pics give me enough detail!

I figured you'd need the 3W diodes simply because of the fixed distance. Keep your eye open for my grow located http://boards.cannabis.com/hydroponics/181616-swc-micro-grow.html I'm using 1W diodes in a much smaller environment, and I hope to push a fat yield from such a small area.

Keep growin!

I need to restate one of the things I said - if you're doing AQUARIUM lighting - some light between 550-610 is helpful. This is where "full spectrum" lighting would likely excel, as marine plants have some chlorophyll sub-structures that work with those wavelengths of light. My fault for misstating something like that.