Marijuana Bloom with 504W LED
- Thread starter LEDGirl
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LEDGirl
Active Member
Hmm, well, you saw about 12 pictures of a 3rd party grow, not my own grow, but hey, believe what you want. Yeah, I trained the people how to grow over the last few years, but I have nothing to do with their current garden. But, it's for people like you, who refuse to accept the results, and instead scream "bias", we found a researcher who likely wrote several books you read when you first started growing weed. Honestly, I doubt there will be many people in this world that will doubt his opinion or his results, which is why it's awesome that he agreed to do a test using our lights.
I don't ask you to abandon HID lighting at all, and I definitely don't deny that most LED lights on the market, do not live up to the claims posted by their MFR's. But I do know, that other companies aren't claiming their lights are developed for weed, and I don't see them posting pictures of their own grows using MJ, or any other plant. With that said, all I ask is that you be respectful, pay attention, and if you have a question or comment, do it in a polite manner. The lights we are using are completely different from any other LED that you can buy, and we want the results from our Professional Grower's Test to speak for themselves. It takes time, and I won't be going anywhere (doubt you will be either), so just stick along for the ride and keep an open mind
potlike
Well-Known Member
Excellent post. You made your point intelligently and managed to not be as over-eloquent as others. I can tell you have done far more research than I have on the subject at hand. The only point I was trying to make (which you confirmed) was that right now LED lighting cannot compare to HID lighting in regards to growing marijuana.
Anyway, +Rep from me to you coming right up.
Thank you very much. Tbh I could see where very controlled conditions of LED lighting with excellent selection of wavelengths could produce respectable amounts of bud. Like, I stated before the problem is with lumenous output which means the light penetration into the lower budsites. LST'ing may be a great method to help with light penetration of LEDS.
LEDgirl obviously knows her stuff as well, she was right on point with the wavelengths that marijuana loves. Much of other light spectrums in HPS is wasted on the plant as it doesn't really use it or only uses it in very minute percentages and the heat that hps gives off is horrible. Most leds you can hold in your hand- I'm not sure about 600w of LEDS... never tried that lol
Anyways I'm babbling now so ty again for the +rep.
-potlike
JoJo7119
Member
well would u recommend any other led lights other than your own cause there a little pricey, well worth it im sure but im lookin for somethin that will grow 8-12 small plants in a 2x4x5 foot grow tent which it why im lookin into led considering all of hps heat and electricity considering i live in a apartment so if u have any suggestions let me know thanks
DillWeed
Well-Known Member
LEDGirl, who is this "professional grower" you speak of? I can tell you right now that I have never read a grow book or watched a grow video in my life so none of those "professionals" mean anything to me, but some other posters here may want to know. I am completely self taught and the only outside source of information I have ever had about growing was at this fine website. I am only on my third grow ever and am already getting great results. Trial and error along with the fine folks on this forum are the sole reasons for that.
EDIT: I would also like to check out your products for curiosity's sake. I would appreciate it if you posted a link to your site (I'm sure there wouldn't be a problem with it) and/or sent me the link.
EDIT: I would also like to check out your products for curiosity's sake. I would appreciate it if you posted a link to your site (I'm sure there wouldn't be a problem with it) and/or sent me the link.
AquafinaOrbit
Well-Known Member
Haha, nearly 4000watts over a 2x4 area? If that much power is needed when using LEDs then you may want to find a new business, or at least take the black plastic off your walls and use a proper lining like Mylar or something white.
LEDGirl
Active Member
In my testing, I've found that you don't need higher lumen values than what are currently available on the market, in order to get good penetration with LED's. The key problem surrounding most LED grow lights is that they use a 120 degree viewing angle. 1W LED's do not have the ability to carry light energy over long distances, and when you try and disperse 1W of light over a large area by using a 120 degree lens, the light over your respective area is much dimmer. A good way to visualize this is to think of a flashlight beam. If you adjust it to a narrow angle, the flashlight produces a bright, narrow beam. If you adjust it to a wide angle, the beam is wide and dim. The light with the narrower angle, keeps its intensity over longer distances, vs the light with a wide angle.
In the lights that are being used in the pictures, use 60 degree LED's, to aim all of the available light at your plants. It's also a more intense beam than the 120 degree that everyone else uses, which allows for much higher penetrative ability. The plants I'm growing, and the ones my friend is growing, have buds all the way to the bottom of the plants. I've attached an image that does a good job of showing the difference between a 120 degree and 60 degree LED.
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potlike
Well-Known Member
Yes, but are those in the respective wavelengths that correspond to USABLE wavelengths?(very doubtful)... Getting 170 lpw from a white led is different than from a 420nm or 440nm. I can tell you have done your homework but as of now the photosynthetic photon flux density(ppfd) in any given LED system out there watt for watt can't equal or outperform HID lighting.
That is a fair price, but if I was to do it myself I would build a panel of the relative wavelengths with either 30 degree or 60 degree LEDS (depending on the orientation of the plants) and make sure I got the most LPW LEDS for each respective wavelength.
-potlike
LEDGirl
Active Member
The only other products that I think are somewhat comparable, are the lights from Theoreme Innovations or HIDHut (although both are priced WAY higher).
Most MFR's use a 120 degree angle though, which is going to shoot about 30-40% of the total light from the LED, to your walls instead of your plants. They do this to create a "larger coverage area", instead of concentrating the light into a reasonable coverage area. For example, some MFR's list that a 90W UFO can supply light to a 5' x 5' area. People who are testing this, are seeing that you should use a lot more than 90W, in that size of a space.
Anyhow, a 2' x 4' grow tent would be good with 2, 126W units if I were to recommend some. If you buy something else, just keep in mind that you're going to want more than 1 light, for the best coverage in your tent.
LEDGirl
Active Member
The researcher is Ed Rosenthal. His grow will begin in 2-3 weeks, and results will be uploaded to the web. Once it begins, I'll make sure to supply a link for everyone to watch. We are lucky that he agreed to do testing with our lights, and look forward to his outcomes.
my site address is http://www.hydro-grow-led.com
LEDGirl
Active Member
Umm, I think you misunderstood.
About a year ago, I was growing with 4, 1000W (2MH, 2HPS), over two, 2' x 4' grow trays, spaced 1 foot apart. The grow area (once plants got larger) was about 6' x 5'. The picture of the Strawberry Bud I posted, was taken in my make-shift bloom room, when I moved into a new home last year. I used white panda film, with a 4' tall strip of Sunfilm Ultra mylar, all the way around the room.
I currently run 756W of LED, and in a few days, will have 1512W of LED. My grow area is still 6' x 5'.
erkelsgoo420
New Member
I hope u can do what others have yet to be able.... And please please. I don't need to know who is doing this grow just PLEASE tell me its not that fuckin tool cervantes. +rep pending ur response lol
AquafinaOrbit
Well-Known Member
Nah, I think you misposted.
"Prior to this bloom she was running 3800W of LED over the same 2 aeroponic trays that I use. Here are current progress pictures that I've been able to take of her grow:" The same units would of course be the same size which you claim is 2x4. Based on the price of LEDs you listed that would mean a setup like that would cost over $12,000 for a 2x4 area. I guess your medical patients are also herbal dealers because no way they could afford that otherwise.
"Prior to this bloom she was running 3800W of LED over the same 2 aeroponic trays that I use. Here are current progress pictures that I've been able to take of her grow:" The same units would of course be the same size which you claim is 2x4. Based on the price of LEDs you listed that would mean a setup like that would cost over $12,000 for a 2x4 area. I guess your medical patients are also herbal dealers because no way they could afford that otherwise.
LEDGirl
Active Member
All I said was that they have white LED's at 170 lumens per watt. White LED's are the most comparable LED to a HPS or MH bulb, as they emit a full spectrum of light (more or less) just like the HID's. They do have red LED's that are currently capable of about 90 lumens per watt, which is pretty respectable for wavelength specific light. A 1000W Hortilux Blue has 80,000 lumens, so I'd say the red LED is doing very well. Anyhow, I know there's a lot more energy behind a HID than there is in a 1W LED, so I won't argue with your ppfd statement
We offer the option of using 60 degree or 30 degree LED's. For people who want something even more custom, we do a mix of 60 and 30. We use the relative wavelengths for marijuana, and in the right ratios. We are also developing a "Pro" model light that would use the highest lumen rated LED's on the market, at each NM that we use. We're still about 2 months away from being able to offer this model, and are currently doing testing on different LED's from different MFR's on the same machine, to ensure that all readings are relative.
LEDGirl
Active Member
Yep, it was a typo. Thanks for pointing that out
I tried to fix it, but it won't let me edit my first post... interesting...
LEDGirl
Active Member
I tried responding to this question once already, but I posted a link to my site because I was asked again, and the post got referred to a moderator, so I won't be posting any more links lol.
The researcher is Ed Rosenthal. We are very lucky that he has agreed to do a grow test using our products. His test will begin in about 2-3 weeks, and results will be uploaded to the internet. Once the test begins, I will post a link to the results so everyone can watch it.
ledgirl, +rep for amazing information and great grows. I hate to see people bashing at you just because your trying to prove something that clearly works. Your doing great things in the way of pushing leds to a further level. I feel as LEDS and sulphur lighting will 100% be the future of growing.
erkelsgoo420
New Member
Nice u got ur rep. The only man that gets any respect from me as a writer as far as mmj. Between him and recently this place I have grown some dank. Tell the man I say thank u and if he's in oregon I would love him to see the strain I breed way back when. Named it pink rosenthal lol. Got some seeds layin around still. Ill dig around and see if I can't find a pic.
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