LED Companies w/ LINKS

mc130p

mc130p

Well-Known Member
While it's true that you can always concentrate it more by reducing the volume, if you don't have enough to begin with, the final volume will be unusable. Either that, or it will take a prohibitive amount of raw material to produce enough mass of product worth concentrating.
 
Greengenes707

Greengenes707

Well-Known Member
It is a publicly traded company...something around $1.25/share. An in-law who knows what I do, said they could use some led's like mine...so I checked them out...they don't need any AT's...but sure was a cool unit when you get into to it. Once I saw the COB walls I knew it would catch some eyes in here.

China(cheap quality) lights go bad and have to be replaced very often...but non of my apache's(top of the line) have had an issue, and I have even dropped 2 of them(accidentally of course), and still work a look great. The metaphor stands for a system like that as well imo(but it could be crap and I am the fool just as equally). I'm not saying that price/money is what makes them good...AT has proven themselves as one of the best on strictly performance. And I believe/feel that way about quite a few higher end products in many industries...specially ours.
Cheap quality products can be sold very expensive to seem better...but there is no going visa versa on that. If it is a quality product(inside and out), the price will reflect that to a certain degree.

We can all DIY something for cheaper...but then think about the standard 35%margins on end goods...DIY of top quality is not that much cheaper in the end for a lot of things. Specially when you factor in time/labor. But don't get me wrong I love to "work a system"(school, cops, overtime...) and be the man that did it on his own...but you get what I am saying.

With all that said...I would love to see one actually in use now that I know about them. Just to see what it's all about.
 
eastcoastmo

eastcoastmo

Well-Known Member
Hey guys,
I made the switch from HPS to LED a few weeks ago and ended up getting 2 of these:http://www.bsled.com/H158D-140W-LED-Grow-Light-58.html for $308US delivered to me in oz. They arrived a few days ago and look pretty good. The spectrum makeup is
660 x 20
470 x 8
640 x 8
380 x 4
3000k x 4
5000k x 4
460 x 4
630 x 28
They are going into a fully insulated wadrobe that is 1.5 ft x 2.5 ft by 4ft high.

Any thoughts from you guys on how you think they will run? I'm very impressed by the service direct from the manufacturer and the price worked out at $154 a unit which i found cheap. Id be grateful for any thoughts/opinions.
Cheers
Mo
 
FranJan

FranJan

Well-Known Member
Waiting. I hate waiting.

Aurora​

June 24, 2014 Illumitex Inc., LED innovator and maker of the world’s most optically advanced lighting products, today announced the development of a game-changing greenhouse LED light, Aurora. (Yada,yada,yada :))

Available this fall, Aurora is an ideal fixture for high-mounting grow operations in both greenhouse and enclosed, contained growing environments. Two versions of Aurora are available, a 1000-watt HID replacement and a 600-watt equilavelent.

An additional feature that Aurora incorporates is a photocell that records natural light coming in to the greenhouse and regulates its output based upon it. “The fixture is designed to maximize the energy efficiency, while offering about five times the output of our standard fixture because of the new technology we have built into it,” says Ilumitex Senior Horticulture Scientist Paul Gray.

The product takes advantage of Illumitex’s patented optics and uniformity of spectrum. “We knew that we needed a fixture that would beat HPS in terms of performance, and by doing that we know we have created the best greenhouse fixture on the market.”


Supposedly a 1000 watt HPS greenhouse replacement "killer" it is interesting that it is using only 20 of the new F3As as opposed to the NeoSol DS's 96 F3s, assuming we're looking at the 1000 watt killer. This is part of Illumi's CEA line and doesn't seem to be marketed at the home user, but that doesn't mean the average indoor grower can't use it either. Price? Probably somewhere between retarded and astronomical :).

More info/"cheerleading" from Illumitex:

​
"At the show, we got the first glimpse of the Aurora Greenhouse LED light an ideal fixture for high-mounting grow operations in both greenhouse and enclosed contained growing environments.

According to Paul Gray, Senior Horticulture Scientist at Illumitex, the Aurora is meant as a 1-for-1 replacement for the 1,000-watt high pressure sodium lamp. Its photocell is able to record the incoming light in the greenhouse and regulate the output based upon it. “The fixture is thus designed to maximize the energy efficiency, while offering about five times the output of our standard fixture because of the new technology we have built into it,” affirms Paul.

The product takes advantage of Illumitex’s patented optics and uniformity of spectrum. It is priced within the realm of other similar fixtures in the market, although Paul claims that “its competitors are not really LEDs, but high pressure sodium or metal halide lamps, as they are the ones with the market share that we are going after. We knew that we needed a fixture that would beat those in terms of performance, and by doing that we know we have created the best product.”

The company will also launch a smaller version meant to replace the 600-watt HID, enabling different ways for Illumitex to approach an operation’s goals."

Have been doing some half-hearted patent searches to try to find some info on the F3A but am striking out. Anybody good at patent searches? Anyone?
 
stardustsailor

stardustsailor

Well-Known Member
http://www.illumitex.com/leds-set-revolutionize-hi-tech-greenhouse-farming/


From: LEDs for Energy Efficient Greenhouse Lighting


LEDs as a radiation source for plants
LEDs as a source of plant lighting were used more than 20 years ago when lettuce was grown
under red (R) LEDs and blue (B) fluorescent lamps [20]. Several reports have confirmed
successful growth of plants under LED illumination[20-23]. Different spectral combinations
have been used to study the effect of light on plant growth and development and it has been
confirmed that plants show a high degree of physiological and morphological plasticity to
changes in spectral quality [24, 25].

Red (610-720nm) light is required for the development of
the photosynthetic apparatus and photosynthesis, whereas blue (400-500 nm) light is also
important for the synthesis of chlorophyll, chloroplast development, stomatal opening and
photomorphogenesis [26-28]. Several horticultural experiments with potato, radish [29] and
lettuce [30] have shown the requirement of blue (400-500 nm) light for higher biomass and leaf
area. However, different wavelengths of red (660, 670, 680 and 690 nm) and blue (430, 440, 460
and 475 nm) light might have uneven effects on plants depending on plant species [25, 31, 32].

Far-red LED light (700-725 nm) which is beyond the PAR has been shown to support the plant
growth and photosynthesis [30, 31].As reported by Goins et al. (2001) biomass yield of
lettuce increased when the wavelength of red LED emitted light increased from 660 to 690 nm [31].
Stutte et al. (2009) compared the effect of red LED (640 nm) light with far-red LED (730 nm) on
the physiology of red leaf lettuce (Lactusa sativa) [30]. Results showed application of far-red (730
nm) with red (640 nm) caused increase in total biomass and leaf length while anthocyanin
and antioxidant potential was suppressed.Mizuno et al. (2011) used red LED (640 nm) light as
a sole source and results showed increase in anthocyanin contents in red leaf cabbage (
Brasica olearacea var. capitata L.) [33]. Addition of far-red (735 nm) to the red (660 nm) LED light on s
weet pepper ( Capsicum annum L.) resulted in taller plants with higher stem biomass than red LEDs alone [34].
Positive effects of blue (400-500 nm) LED light in combination with red LED light on green
vegetable growth and nutritional value have been shown in several experiments. Mizuno et al.
(2011) and Li et al. (2012) have reported that blue

LEDs (440 and 476 nm) used in combination with red LEDs
caused higher chlorophyll ratio in Chinese cabbage plants [32, 33].
Goins et al. (1997) reported that wheat (Triticum aestivumL., cv. ‘USU-Super Dwarf’)
can complete its life cycle under red LEDs alone but larger plants (higher shoot dry matter)
and greater amounts of seed are produced in the presence of red LEDs supplemented with a quantity of blue light [35].
Similar experiments have shown increased nutritional value and enhanced antioxidant status in
green vegetables: increased carotenoid [36], vitamin C [32], anthocyanin [30] and
polyphenol [37]. Several reports (Table 1) have shown that plant response (growth, flowering
time and secondary metabolite) to light quality is species specific. Table 1 contains a summary of
various research work carried out on different plant species to study the effect of specific
wavelengths (using LEDs as a radiation source) on plants physiology.

Green light also contributes to the plant growth and development. This has been confirmed by
several experiments. Johkan et al. (2012) reported that green LEDs with high PPF (300 μmol m-2S-1) are most effective to enhance the growth of lettuce [37]. Novickovas et al. (2012) have found
that green (505 and 530 nm) LED light in combination with HPS lamps contributed to the better
growth of cucumber [46]. Folta (2004) evaluated the effect of green (525 nm) LED light on
germination of Arabidopsis seedlings and results showed that seedlings grown under green, red
and blue LED light are longer than those grown under red (630 nm) and blue (470 nm) alone
[48]. Supplementation of green light enhanced lettuce growth under red and blue LED
illumination [49]. Green light alone is not enough to support the growth of plants because it is
least absorbed by the plant but when used in combination with red, blue, and far-red, green light
will certainly show some important physiological effects. Further investigations are required to 11
study the required level of green photons for optimum plant growth. Experiments with different
wavelength of green, red, blue, and far-red lights
(provided by LEDs) would be beneficial in determining the species specific optimal wavelength
for plant growth. The findings of the light response spectrum studies could be used to design an
energy efficient tailored light response spectrum for specific plant species.
Click to expand...
http://arxiv.org/ftp/arxiv/papers/1406/1406.3016.pdf


My hard guess is that Surexi FA3 ,incorporates a finely balanced R-G-B spectrum..
Maybe with FR added ....
From the other hand ...
The presence of a 'light sensor' could mean an 'auto-tunable spectrum ' feature , also ...
In order to meet constantly the ( under cultivation ) species 'pre- tailored setting ' ,
while supplementing the - time/weather altered - natural sunlight ...

That is enough of high-tech implemented ,if so ...
(Surexis FA3 are adjustable in spectrum & power terms then,also ... )

And proprietary enough,nevertheless ...

Cheers.
:peace:
 
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FranJan

FranJan

Well-Known Member
Hey SDS, how's it hangin'? :) Thanks for the info. Again! :) Actually I'm reading it now and it's got lots of studies I missed. It would make a great sticky/primer for noobs and novices alike, maybe a little light on the COB and white info, but still good solid SCIENCE based (Hi PF ;)) primer.

I'm interested to see if Illumitex dumped the 5000K from the F3 line with the F3A. RGB +730nm does make sense and opens up the possibility of having control over at least the RGB portion and would be completely killer if you can control the 730nm too, especially for perpetual growers who could turn it off during the stretch when introducing a new plant, though on the F3 I believe FR only encompasses 1 or 2 % of the total beam content and may not be that big of contributor to excess stretch. Then again you really don't need that much FR, (or do we? LOL) to begin with so it might contribute to stretch significantly. God I'm confusing myself now! LOL And another great aspect is the ability to control the green percentage and try to find out the amount MMJ likes and how much retards growth, as excess green can in certain situations I've been led to believe.

And another big question is, (Hi ChazB), is the Aurora getting a UL listing? I mean if it's a real replacement it's gotta have that and a few other ratings to be accepted in the US, right? I just can't see Illumitex dropping the ball on that account, but who knows what UL is going to say.

Questions SDS, always questions. Sigh. Can they freeze me and wake me up in 50 years? I bet PSU.jr will be here telling me what's what! LOL Then again, HAIL DISCOVERY and all her rewards. Nothing like getting in from the beginning, right boss?

Oh yeah, I started to read that MIT report a few days ago and these lines just stopped me in my tracks, "They calculate that the cumulative cost of high pressure sodium lamps surpasses that of LEDs after just 7 years and that after 16 years the cumulative cost of high pressure sodium lamps is more than double the equivalent cost of LEDs." I would love to see how they came up with that number. I'm thinking that's just pulling numbers out of your ass to prove a point type logic and thinking. In 7 years you're gonna lose some output. Output that might cost a business significant money or damage one's reputation. You think they included lumen deprecation? Or the failure rate of your drivers? I don't think they did those numbers or at least I don't think they want to talk about them. And how do you get a sales department to use that as a selling point?

And this one too is a killer to me, "Although high pressure sodium lamps are individually cheaper than LEDs, they have to be changed every year compared to every 19 years for LEDs." 19 years! WTF! In 19 years you'll be getting 10+ grams a watt or something crazy insane, (quick someone do Haitz's Law to see where LEDs are in 19 years). My respect for MIT just went down a bit.
 
PSUAGRO.

PSUAGRO.

Well-Known Member
Advanced led has put up pre-orders for their new cree 450-460nm xte panels with 660nm osram chips..........no white in 2014?? I guessed wrong on them jumping on the R/W spectra "bandwagon".........interesting call for sure.

what the hell happened to the ARC series btw?????..........idk, weird
 
stardustsailor

stardustsailor

Well-Known Member
PSUAGRO. said:
Advanced led has put up pre-orders for their new cree 450-460nm xte panels with 660nm osram chips..........no white in 2014?? I guessed wrong on them jumping on the R/W spectra "bandwagon".........interesting call for sure.

what the hell happened to the ARC series btw?????..........idk, weird
Click to expand...

One could be thinking ,that with the latest improvements in phosphor conversion led light generating and with the COBS hitting the market ,that monochromatic leds would be rendered as useless in LED horticulture ....

Actually ,the opposite is happening.

The increase in efficiency terms of the pc white leds ,just came to underline the importance of monos ...

In the old days ,it was out of question to grow with just red & blue leds in high irradiances ...
Other wls were missing ,plant would get saturated ,inhibited ,or even fried ...

And while today's white leds cover very well the need of "multi- wavelength photosynthesis'" at high irradiances,
we should not forget that they are made for human vision purposes and not for horticulture ...

So,along with utilising efficient whites ,the next generations of led grow lights* should and hopefully will incorporate
selected monochromatic leds ....

Mainly for two reasons :

1 ) 'Fill" the wls ' missing " from pc whites ...(For example : Cyan & Deep reds )

2) Alter the quality of light ,depending on growth stage/ species/ cultivar /etc ,
in such way that certain photomorphogenic attributes will be diminished or enhanced ,
thus affecting certain metabolic pathways ,regarding the growth,reproduction
and ...production of plants.
(With UV,blue ,red,deep red and Far red monochromatic leds ,being the most crucial )

*(And all that for led lights that they do not utilise proprietary pc leds { Valoya } or proprietary multichip leds
{ Illumitex } ....)


Monos are back.To 'blend' with 'whities'.
In order to introduce versatile and highly efficient horticultural Solid State lights.
It never ends,indeed.
:wink:

Cheers.
:peace:
 
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