U
unthing
You seem to have it covered pretty good. One more thing: what about uv?
LED Marijuana Blooms
- Thread starter Hydro-Grow-LED
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M
mrred
i want single high watt leds, 100,200 watts per led, serious shit, no way im going waste money on a toy, whatca know about those?
Hydro-Grow-LED
Member
Ok, so here's the deal on UV. Any company currently using "UV" or claiming to, is not using a UV that's beneficial to our plants. It may be beneficial to petunias or something, but not weed. The lowest UV that any company would be using in their light is 390nm, though most of them who are using it, are using a 420nm, which is barely UV.
Marijuana produces resin as a form of Sunblock from certain types of UV. This type of UV is found at 285 - 315nm, and when used in small quantities in your light, will cause the plant to produce more resins, and sturdy it's growth (since UV is a stress factor for plants). If you use too much UV, you will reduce the yield of your plant, as UV is overall harmful to plant growth. No one is using a 300nm LED in their products currently, as the cost of them is EXTREMELY high. So for now, we don't use UV. In the future, if 1W 300nm bulbs drop below $10 each, we'll implement them in very small quantities into our product.
Hydro-Grow-LED
Member
They have a much lower lumen per watt value vs a 1W LED, as 1W LED's have had far more research and development. Companies make 100W LED "chips" and 20W "chips", but they are primarily all white light. Even a 3W or 5W LED, is far less efficient at lumens per watt, vs a 1W.
I have been searching for the link with no result, though will be sure to post it if I rediscover it. I'm sure that if there is any truth to it red spectrum would surely not destroy all carotenoids and it is possible that it only occurs when they are exposed to large amounts of high intensity red light.
There is a piece of information I would like to share with you, though you are probaly already aware of this. That is the precence of UV light Specificlly UV-B I belive that is said to help produce higher amounts of THC by converting CBD's into said chemical.
The theory is that THC was created so that cannabis could shield its self form harmful UV light. I myself have done limited experiments with a UV light and had found that the plants that had been exposed to the UV had increased potency, though this can not be fully verified due to the relative weakness of the light I had used. Though I think that UV LED's might produce better results.
There is a piece of information I would like to share with you, though you are probaly already aware of this. That is the precence of UV light Specificlly UV-B I belive that is said to help produce higher amounts of THC by converting CBD's into said chemical.
The theory is that THC was created so that cannabis could shield its self form harmful UV light. I myself have done limited experiments with a UV light and had found that the plants that had been exposed to the UV had increased potency, though this can not be fully verified due to the relative weakness of the light I had used. Though I think that UV LED's might produce better results.
Sorry I didn't realize you had posted a similar answer only moments ago.
M
mrred
whats teh difference? i know a company that makes 2700k 100w leds or blue, white,yellow, red
Thx for the response hydro-grow. I have been watching various LED grow journals and it seems the ones that were deemed failures by the growers, were the ones were the grower did no properly position the lights within or less then 12" from the plants. The distance from LED light to plant seems to be a make or break for a LED grow.
I may be interested in one of your lights when I expand to mix it up some. I got the 180w jumbo UFO from prosource. It seems like a nice high quality light, however I think it was a bit pricer compared to what I get if I went with your light.
The 126w light does look appealing I would love to see some grow journals just with one of those operating on a few plants.
Hydro-Grow-LED
Member
Ok, here's a 3W LED: http://www.edison-opto.com.tw/products_detail.asp?category=1&cno=203
Here's a 1W LED: http://www.edison-opto.com.tw/products_detail.asp?category=1&cno=204
So, a 3W Red at 620-630nm, produces 80 lumens at 700mA. A 1W Red at 620-630nm, produces 45 lumens at 350mA. According to Cree, if you increase the power from 350mA to 700mA, you multiply the lumen output by 1.72 Depending on color, the mutliplier can be as low as 1.5. If we take the low value, and run our 1W red at 700mA, we would have roughly 68 lumens. If we then used 3, 1W reds, we would have 204 lumens, vs the 80 you get with a single 3W LED. This applies to 5W and higher as well. You will always have a higher lumen per watt value, using 1W LED's (at least until the MFR's decide to start pumping a bunch of money into their other chips).
M
mrred
some have to be, sometime in 2010 americans wont be able to buy incandescent and other low efficiency bullbs, its going be cfls or leds for most people, im not a fan of cfls
how much more efficient do you think a 100w led is vs a 100hps?
how much more efficient do you think a 100w led is vs a 100hps?
E
elmanito
Strains from the Himalaya are used to a high amount of UV and HPS & LED doesnt have any UV at the moment for these strains as what you wrote about the UV LEDs.
The only light for indoors which does contain UV is Sulpur Plasma, but its very expensive to buy at the moment.
Namaste
Hydro-Grow-LED
Member
That's totally dependent on application (ie: growing plants, vs lighting a room), and intelligent design. If you're using a 100W LED with 120 degree LED's, and some orange thrown in, you're not going to have anywhere near the results as you would with our 126W.
Anyhow, I have a grow test coming up in the next 2-3 weeks. It will be performed by a world-famous marijuana author/researcher. Up until now, he was going to be using 2 of our 318W units, against a 600W HPS. We've decided to send him an extra 318W, to do the test against a 1000W HPS instead. So it will be a total of 954W of LED. Once the test begins, we will release his name, and his results will be posted weekly online. You all are going to love the grow
U
unthing
Looking forward to that and thanks for the answers.
M
mrred
the high powered is needed for better penetration, these single high power units are is whats going drive the price down for the average joe.
you use 500+ watts over 2x4 foot tables? and only get 12 inch of light pen, you can cover that table with 2 250hps and get 16 inches of light.
you use 500+ watts over 2x4 foot tables? and only get 12 inch of light pen, you can cover that table with 2 250hps and get 16 inches of light.
Hydro-Grow-LED
Member
1W are High Powered LED's. At least the ones we use are. I think you misunderstood somewhere to think that we only achieve 12" of light penetration. Our 60 degree lights can grow plants up to 3' tall, and penetrate to the base. We recommend that you use the lights no higher than 12" above your canopy. With these LED's, we are getting nice budding all the way down to the base of the plant, as can be seen in the pictures, with 2.5' tall plants. If you wanted to grow plants taller than 3', you should use a 30 degree LED, which we also offer.
M
mrred
sure you can get buds with a 150hps from 2 feet away, but its not going be ad big as the ones that are withing 12 inch range , where would you led light fit in with this chart
MMAJAY
Member
Just a quick question. I noticed what looks like 6 PC type fans and alot of ventilation slots on each light. What is the reason for so much airflow if the heat is not an issue. I will be watching your posts closely as others will too because everyone wants to fight heat issues and energy consumption. There is going to be alot of skeptics out there and i hope you might be able to put this aside.
very interseting.... im sceptical but hopeful. im definatly keeping an open mind,
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