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stardustsailor

stardustsailor

Well-Known Member
vladimiroslav said:
Illumis = illumitex?

Would it be the other brand to buy and blend with the Hans's spectrum to have the best of both worlds (2700 + 3000)?
Click to expand...
Yes "Illumis" = plural and led-slang for Illumitex leds ..

That is my question ...
A definite answer can be given by monochromatics ..
Which works best ?

-660+FR ?
-630+660 ?
or 630 + 660 + FR ?

If it is the last one ,then yes ,it surely deserves the efficiency drop/loss ,
the 'deeper red' spectrum a high CRI ww / 2700Kwill provide,along with a mid CRI WW / 3000K...

If 630-660 is the 'winner' ,then a mid CRI WW / 3000K ,won't benefit much from
the addition of high CRI ww / 2700K ,during flowering ...
And that Quantum -dot warm white illumination is right on spot !

If 660+FR is the winner ,then we'll have to wait ,I guess ,another 2-5 years for more efficient High CRI / 2700 K leds/cobs to hit the market ,in order to see some super-duper all-white led grows .......
Or wait/search for some even 'warmer ' Quantum -dot ones .....
 
FranJan

FranJan

Well-Known Member
Hey SDS, with my setup I can't really tell any difference and any comparison grow between the Hans and Illumis I use would be very biased towards the Illumis's beam angles, which deliver light in a nice, tight and intense beam. The ladies really like the Illumis and I'm pretty sure it's not just the spectra. And thanks for that info too.
My thing is I read those Harvard papers on LEDs and growing and see how individual spectrums affect plant growth and it just keeps me stuck on monos. I find that fascinating and reminds me of how my Blue Cheese
hated my BS240s but my Super Lemon Haze loved those panels. But spectrum is only gonna get you so far, right? You still have to have that intensity and efficincy.
And PSU, I think Han's "problem" is he went with the XBD package and wide angles thinking his reflector was gonna aid in light output. Problem is LED reflected light is mostly light that is not intense enough for plants. You need reflectors at the die level to get any significant output from reflection. Another reason Illumis get a buttload of light out of their die/package.And that's something I read in a LED lighting design textbook and is why I always called those aluminum dishes on my panels limiters and not reflectors.
 
stardustsailor

stardustsailor

Well-Known Member
FranJan said:
Hey SDS, with my setup I can't really tell any difference and any comparison grow between the Hans and Illumis I use would be very biased towards the Illumis's beam angles, which deliver light in a nice, tight and intense beam. The ladies really like the Illumis and I'm pretty sure it's not just the spectra. And thanks for that info too.
My thing is I read those Harvard papers on LEDs and growing and see how individual spectrums affect plant growth and it just keeps me stuck on monos. I find that fascinating and reminds me of how my Blue Cheese
hated my BS240s but my Super Lemon Haze loved those panels. But spectrum is only gonna get you so far, right? You still have to have that intensity and efficincy.
And PSU, I think Han's "problem" is he went with the XBD package and wide angles thinking his reflector was gonna aid in light output. Problem is LED reflected light is mostly light that is not intense enough for plants. You need reflectors at the die level to get any significant output from reflection. Another reason Illumis get a buttload of light out of their die/package.And that's something I read in a LED lighting design textbook and is why I always called those aluminum dishes on my panels limiters and not reflectors.
Click to expand...
Oh,...
I see..Or I understand....
Still,what you say/think for the Illumis ,puts me into a lot of thought .....
'Cause ,actually ,no matter by using quite different led spectrum approach than both Han's and the illumitex F3...
I've come to the same 'point' where you might 'stand' .....
Oh shit ...( Not for 'me and you ',for the 660-730 thing .. ..Yes .."Oh shit,probably it's true " ...)

Well...Look ...It your choice the 'monos' thing ....
You know that has both 'cons' and 'pros' ,as the 'pc / qd whites' have respectively their own ...
Besides efficiency (which is greater at least at the 'basic' blue and red monos ) monos have the advantage you've just mentioned....They allow for experimentation,study and deeper search of knowledge ,regarding that still pretty much unknown issue of "light and plants " ...(Before they used colored transparent films to filter out / pass only
certain wls ...Of course this method can not be even compared to the 'targeted' monochromatic light of leds ....

Fran,for science they are a golden 'tool' ...And not only ....
For professional horticulture also they are much more preferred than "white' leds ..
-with some exceptions like Illumitex (Neosol ) and Valoya ( R/L/B series ) and few others ..

As for the reflectors ....
Well ...How much light is going to be absorbed and how much reflected can greatly depend....
Same like with lenses ..How much light is going to be transmitted and how much absorbed again can greatly depend ...
(Though ,with the lenses ,the light gets 'concentrated'...Still ,usually cause light passes through matter and not
'bouncing' on it ,absorbance is greater ...By Far greater...+10% at least ....)

My preference is the ..'nudity' ....:P

Nothing ...No lens ,no reflectors ...
(But I 'm greatly relying on the light dispersion ,provided by the Mylar coated tent-walls ...)

Plants love dispersed light .More than the direct one !
:o


( Now ...Since you go through all these Harvard researches -and that is a very 'profitable ' thing you do !
(:...You just have to search about dispersed light ,photosynthesis and plant productivity / growth ...)

As for the side reflection on die level and it's efficiency ,you're ,of course ,correct ...

Though ,most modern dies from Cree,Bridgelux,Osram and others are "Thin-Film " type of dies ....
They 've minimised -by this way-almost all the side losses of a typical "volume emitter " die ...
I'm not sure about the leds illumitex uses ( Surexi ? ...In fact I do not know at all what type of emitters they are ...
Volume or thin-film ..? )
 
FranJan

FranJan

Well-Known Member
Hey SDS I'm workin hard lately and haven't had a chance till now to sit in front of my computer and digest what you're saying. It's quite funny what you're saying about dispersion to me because I'm on a "tight beam" kick right now, and something tells me you going to be right, (does the reading ever end :)). I always liked the Vipar A300's 90 degree beams because the panels light was tighter. Less light on my tent walls if you will. And I guess when you're using signage grade diodes from China, you need tight beams to have some kind of intensity. But I guess now, with these COBs that produce great results with 120 degree beam angles, these whites with their 130+ lumens/watt output, dispersion is penetration. And the light from COBs is much more natural than that banded light mutli-chip arrays put out, that's gotta help too.

But again Illumis are a different beast. Luckily for us they're selling some of their patents. Patents that pertain to their light extraction and die shaping.The problem is they are very hard to reach and while they do make quite a few different Surexi, F1 to F8 plus the Nasa X5, monos, (450-730), and whites, with 10 degree beam angles no less, it's tough to order just a few and some of the Fs aren't readily available, i.e. F4, F8. Illumitex only wants to talk about big jobs nowadays, they don't care about little growers.

And I have no idea about their die actually. I don't even know what "watt" diode they classify them as. They supposedly max out at 600mA, but I'm running mine at 580 and I have zero heat problems with them. Probably go to 650, maybe 700mA. And each package is 16 LEDs and 2 Zeners. They're like little UFOs :). Maybe these pix will answer some of your other questions. Utimately they're pricey, but good.

http://www.pluritas.com/campaigns/illumitex

http://www.pluritas.com/_public/_public_illumitex/Illumitex_Patent_Portfolio_Overview_FINAL.pdf
SDS 2 - Copy.jpg SDS 4 - Copy.jpg SDS 5 - Copy.jpg SDS 6 - Copy.jpg SDS 3 - Copy.jpg SDS 1 - Copy.jpg

theboys - Copy.jpg
 
stardustsailor

stardustsailor

Well-Known Member
WoW !
..Yes,pretty much every single diode is a small panel ,there !

(I'm not quite sure and should not be taken as a 'sure thing' ,but I think those are 'volume emitters' ....
It is so complicated their design ,that I'm might be totally wrong ... )

Can't expect such a 'design' to be cheap or at least at the same price range as the rest of same
Power level diodes ...Many patents are used here ,in those leds ...

A (seemingly ) weird question : I can't really judge the output "color" / " light shade " of the F3s ..
( There's that strong blend with the light coming from Han's panel ...)
Do the F3s glow / emit a kinda 'warmish/ reddish " white light ?
Or is it more to the 'pink ' ?

BTW....
That is some fine budding you've there ...

Still ,if you want to see something ,really ...let's just say ...'strange' .....
(You can turn it into 'awesome' ,after seeing the 'results' ....)

Just for once you got to find a way to try this :
After the second/third week in flowering/ 12-12 .....
Have the F3 with the Hans' panel ,same as now ...
But ,find a way ,to completely switch off the blue leds ,from Hans panel ...
Do it just once ,a grow for a 'test's shake " ....:wink:..
IDK ...:P...
You just got to try it ...
(:...
You never know ,what you might be discovering ....
;-)...

Cheers ....

............................

Weed species radiation-use efficiency as affected by competitive environment
Greta G. Gramig a, David E. Stoltenberg b, John M. Norman c


Abstract

Plant canopy radiation-use efficiency (RUE), defined as unit of dry biomass produced per unit of absorbed photosynthetically active radiation (APAR), ( gr/Watt .....) has been widely studied both in experimental and theoretical contexts because the use of this relationship greatly simplifies estimating biomass production in plant growth models. Previous studies have indicated that RUE may be sensitive to changes in the fractions of diffuse and direct radiation; RUE has been shown experimentally to increase under conditions of increased diffuse light caused either by atmospheric conditions or by shading from other plants in intercrops. *Therefore, we hypothesized that weed species RUE would be greater for weeds grown in mixed weed–crop communities than for weeds grown in more uniform and less dense monotypic communities.


*Shaded adapted plants ...often produce more ...efficiently ...
(Not bigger yields than sun-adapted ones ..Another one of many 'efficiency pit-falls ' ...
 
Last edited:
FranJan

FranJan

Well-Known Member
Yeah I was gonna say volume too, but who knows outside Illumitex, right? F3s have a pink tone but very pale. The 5000Ks of the P3 dominate the 2x660 and 1x730, whose visible light is limited anyway. On the reflection off the leafs though it appears white. And I'm trying to be a good boy with my Hans panel and not rip it apart just yet but I would love to do something like you're talking about. If I could I'd run little plants under different spectrum and LED combos all the time but I gotta have some respect for the law. Judges don't want to hear shit if you got 100+ plants :0.

See it's info like what you posted that changes my style over time. Maybe it's no coincidence that the area of most growth in my flowering tent is the center of my grow area which has no panel above it and is blocked from my side lighting by other plants. Interesting. I started using side lighting because I can grow colas that way, but I've always wondered if it was worth it. I've seen articles that say side lighting with LEDs increase mass but always said it was species dependent. I've always thought in the back of my mind it could be somewhat detrimental. Maybe I am ripping myself off? What I do know now is I got to get two smaller tents and split my gear so I can do some kind of experiments instead of using the LED "belief system". :)

STABILITY OF RADIATION-USE EFFICIENCY FOR ESTIMATING WEED BIOMASS
ACCUMULATION IN WEED-CORN COMMUNITIES.
Greta G. Gramig, David E. Stoltenberg, and
John M. Norman, Graduate Research Assistant, Associate Professor, Department of Agronomy, and
Professor, Department of Soil Science, University of Wisconsin, Madison, WI, 53706.

Simplified mechanistic models focusing on critical determinants of competitive outcomes can
potentially provide useful descriptions of weed-crop competition with less difficult and cumbersome
parameterization than more complex eco-physiological models. Competition for light is often a key
determinant of competitive success in highly productive agroecosystems. Plant species convert
intercepted radiation into biomass with varying degrees of efficiency. Variation in radiation-use
efficiency (RUE) can result from intrinsic physiological differences among plant species and from
differences in canopy light environments. Characterizing variation in RUE resulting from crop-weed
interactions in complex canopies is necessary for making accurate estimations of weed biomass
accumulation.

Field experiments were conducted in 2001 and 2002 to determine the RUE of giant ragweed,
velvetleaf, woolly cupgrass, and wild proso millet grown in two competitive environments: weed
monoculture or within corn. Experimental design was a split-plot randomized complete block with
three replications in 4- by 4-m plots. Community type (weed grown in monoculture or in corn) was
the main plot factor and weed species was the subplot factor. Early-season weed species RUE values
were calculated for each plot as the slope of cumulative intercepted photosynthetically active radiation
(IPAR) (MJ m-2s-1) vs. cumulative shoot biomass (g m-2) from emergence to V6 corn. IPAR was
calculated as a function of leaf area index (LAI) and an estimated light extinction coefficient (Kd),
which was based on a spherical leaf angle distribution and LAI. Daily estimates of plant biomass and
LAI were interpolated from regression models with growing degree-days as the independent variable.
Mean RUE values were tested for significance using the appropriate F-tests.

In 2002, an experiment was conducted to compare the above method of estimating IPAR with direct
measurements of IPAR. Radiation sensors were placed above and below the canopy in 24 plots to
measure IPAR over a 24-hour period. Paired t-tests comparing measured values of IPAR with
estimated values of IPAR indicated no difference between methodologies (p=0.6586). Therefore,
estimated values of IPAR were used for calculations of RUE.

F-tests of weed species RUE means indicated significant year by community (p=0.0423) and
community by species (p=0.0003) interactions. Consequently, weed species RUE means in corn and
in monoculture were compared within year using t-tests. In 2001, RUE of giant ragweed did not differ
between communities (p=0.1292), but the RUE of velvetleaf (p=0.0102), woolly cupgrass (p<0.0001),
and wild proso millet (p=0.0030) was greater in corn than in monoculture. In 2002, RUE of giant
ragweed (p=1.000) and velvetleaf (p=0.0999) did not differ between communities but RUE of woolly
cupgrass (p=0.0155) and wild proso millet (p=0.0462) was greater in corn than in monoculture. These
results indicate that variation of weed species RUE was associated with the effect of corn on the
canopy light environment. Weed species typically had greater RUE in corn than in weed monocultures
except when the weed species was highly competitive with corn for light.
​
More reading kiddies. And where the hell is my dictionary? :)
 
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FranJan

FranJan

Well-Known Member
And since we're Illumitexing out, how about some news?


http://www.illumitex.com/illumitex-led-lights-used-revolutionary-growtainers/

Illumitex LED Lights Used in Revolutionary Growtainers

​
AUSTIN, TEXAS — APRIL 9, 2014 Illumitex Eclipse LED lights have been selected for use by Greentech Agro in their inventive new Growtainer™ mobile hydroponic vertical grow chambers.
Housed in specially insulated 40’ shipping containers specifically modified to provide the optimum controlled vertical environment for growing a wide range of horticultural and agricultural products in all environments and climates, the modular units are fully customizable and stackable.

“We’re pleased to partner with Greentech on such a groundbreaking project,” says Illumitex CEO Chris Hammelef. “Eclipse’s state-of-the-art LED technology can be tailored to the optimal needs of each specific plant species, resulting in higher yields in a shorter period of time than with conventional production methods. They’re a perfect fit for the Growtainer™ prototypes.”

Capable of unlimited simultaneous experiments, prototype Growtainers™ onsite at the Texas A&M Research and Extension Center in Dallas will be used by researchers to further refine plant production in closed environments, with plants that need less water and less light, all aspects that are very important to solving the food security problems around the world.



Greentech Agro co-founder Glenn Behrman says he’s built a plug and play unit that can constantly be improved. He says that all the utilities necessary to grow short-term crops are contained within each unit. Scheduling, monitoring and control of the climate, cultivation strategy and irrigation scheme are all managed within each unit. The proprietary Growtroller™ control system can be remotely monitored and operated via the Web or a smartphone. Video and audio communication occurs in real time, says Behrman.

Growtainers™ might be a great solution for grocery chains that want year-round supplies of fresh gourmet veggies. A market could grow leafy greens right in the parking lot — offering the ultimate in farm-to-table freshness. Or a school could teach students about hydroponics and sustanability by growing leafy greens and then serve the harvest in the classroom. Other benefits include a reduction in food miles, increased freshness and longer shelf life.

http://www.illumitex.com/wp-content/uploads/2014/04/Illumitex-LED-LIghts-Used-in-Growtainers.pdf


So gang, when are we going to rip off one of these, "Road Warrior" style? :razz:
 
FranJan

FranJan

Well-Known Member
Ohhhh one more, why not? I've been looking at the Stratus line for a while and I figured someone was gonna grow with them sooner or later. White! It ain't just for lighting up statues!
http://www.illumitex.com/illumitex-lights-grow-walls/



Illumitex Lights Up Grow Walls
​
Take a look at any compilation of building trends, and you’re sure to see green walls mentioned prominently. Lush, gorgeous and often edible, grow walls are increasingly being embraced both by businesses that want to enliven dull office spaces and by homeowners looking to make a show-stopping artistic statement. And almost everyone appreciates green walls’ ability to improve air quality.
According to a 2012 study by LuxResearcy, the green walls market is expect to be worth $680 million by 2017.

Savvy designers know living walls produce a number of tremendous benefits, including:

  • Aesthetic beauty
  • Overall well-being and happiness and stress reduction
  • Natural and efficient air filtration — plants pull toxins from the air
  • Sound absorption
  • Thermal regulation
  • In hospital settings, patients recover more quickly, use less pain medication and complain less
  • Plants add humidity to the air when you have your central heating on in the winter


Architects who plan grow wall installations face particular challenges, lighting being chief among them. Determining how to cost-effectively and sufficiently light a green wall without generating excess heat is critical. Old-fashioned HID, fluorescent and even incandescent lamps may have once been an option, but smart designers are turning to LED lights these days.


Illumitex Stratus LED light
Sophisticated LED fixtures such as Illumitex Stratus can be fitted with custom-spectra LEDs that offer the plants the perfect photosynthetic light, while also providing humans with the light that’s best for admiring the plants. Plants make the most of light in the blue (400-499nm) and red (600-699nm) areas of the light spectrum. And Illumitex throws in a little green light (500-599nm) into our perfectly blended Surexi X5 LEDs, because that’s what we people need.
In addition to offering the perfect color mix, LED fixtures offer financial benefits too. Illumitex LEDs require half the electricity to run, and they generate half the heat of their legacy counterparts — meaning lower air-conditioning bills.
Sleek and modern, Illumitex’s Stratus LED fixture is available in a number of mounts — including ceiling, flex arm and yolk — to meet any architectural need. The fixture is available in square, rectangle and round forms, as well.
​


See PF, this is how ya shill!
 
stardustsailor

stardustsailor

Well-Known Member
FranJan said:
Ohhhh one more, why not? I've been looking at the Stratus line for a while and I figured someone was gonna grow with them sooner or later. White! It ain't just for lighting up statues!
http://www.illumitex.com/illumitex-lights-grow-walls/



Illumitex Lights Up Grow Walls
​
Take a look at any compilation of building trends, and you’re sure to see green walls mentioned prominently. Lush, gorgeous and often edible, grow walls are increasingly being embraced both by businesses that want to enliven dull office spaces and by homeowners looking to make a show-stopping artistic statement. And almost everyone appreciates green walls’ ability to improve air quality.
According to a 2012 study by LuxResearcy, the green walls market is expect to be worth $680 million by 2017.

Savvy designers know living walls produce a number of tremendous benefits, including:
​


    • Aesthetic beauty
    • Overall well-being and happiness and stress reduction
    • Natural and efficient air filtration — plants pull toxins from the air
    • Sound absorption
    • Thermal regulation
    • In hospital settings, patients recover more quickly, use less pain medication and complain less
    • Plants add humidity to the air when you have your central heating on in the winter
Architects who plan grow wall installations face particular challenges, lighting being chief among them. Determining how to cost-effectively and sufficiently light a green wall without generating excess heat is critical. Old-fashioned HID, fluorescent and even incandescent lamps may have once been an option, but smart designers are turning to LED lights these days.


Illumitex Stratus LED light
Sophisticated LED fixtures such as Illumitex Stratus can be fitted with custom-spectra LEDs that offer the plants the perfect photosynthetic light, while also providing humans with the light that’s best for admiring the plants. Plants make the most of light in the blue (400-499nm) and red (600-699nm) areas of the light spectrum. And Illumitex throws in a little green light (500-599nm) into our perfectly blended Surexi X5 LEDs, because that’s what we people need.
In addition to offering the perfect color mix, LED fixtures offer financial benefits too. Illumitex LEDs require half the electricity to run, and they generate half the heat of their legacy counterparts — meaning lower air-conditioning bills.
Sleek and modern, Illumitex’s Stratus LED fixture is available in a number of mounts — including ceiling, flex arm and yolk — to meet any architectural need. The fixture is available in square, rectangle and round forms, as well.
​


See PF, this is how ya shill!
Click to expand...
:shock:...!!!!!
WOW.!!!!

( ...And you just can forget about renewing the wall paint every couple of years or so ......)

Awesome ...Apart from the architectural design involved ...
Think all that smell and clear -fresh air ,'breathed out' from this 'living wall ' ...

Amazing really ...And those FLAT led panels ?
Shit ,it's like they came back from future !
...
Flat speakers ,flat mobiles,flat Tvs and now flat grow lights ...

Shit ..
Tech moves on pretty fast ..
Sometimes I come to realise ,that no matter how capable you are as a DIYer and how up-to-date informed ....
You just can';t compete with serious companies ,with serious staff and some serious R&D behind ...

Fran...
This is some Hi-End LED illumination,my brother ...

Great info shared.
Cheers.
:peace:
 
stardustsailor

stardustsailor

Well-Known Member
Now ....Look ...
Totally silent ...
http://www.illumitex.com/wp-content/uploads/2014/01/Stratus48_SPEC.pdf


A plate of aluminium ...

APPLICATIONS
The Stratus High Bay
is perfect for warehouses, factories,
industrial environments, gymnasiums, high ceiling
retail and any other space requiring uniform,
energy-efficient lighting with mounting
heights between 25 and 65 feet.

GENERAL DESCRIPTION
The Stratus High Bay
incorporates Illumitex's
industry-leading patented optics, resulting in unsurpassed
light output, long life and highly uniform lighting.
Illumitex's designs combine sealed optics and
engineered
heat management with aesthetically pleasing looks.(<= tell me about it !!!.)

ELECTRICAL
120 - 277 Vac or 347 - 480 Vac input; 50 - 60 Hz;
integral Class 1 driver (700mA). Wattage consumption
for 48 LED version is 400 Watts
(equivalent to 1,000W MH).
Other LED combinations with varying light output and
power consumption are available. Line voltage power
connection
may be pendant, power hook, flexible conduit
or power cord.
Fixture includes connection points for
aircraft cable or chain hangers.

OPTICS
The 400 watt fixture is equipped with 48 Aduro VH LEDs
with 50º beam angle and ~ 34,000 total fixture lumens.
Color temperature is available in 5700K, 4000K and
3000K standard (<= Yum ! -Yum! ...:eyesmoke::eyesmoke:...BW =3000K - 82 CRI)


(...) 8.
The X5 Surexi LED is used for color enhancement applications and is not
represented
by lumen values for GW, DW or BW white Aduro LEDs.
(...)


MECHANICAL
Fixture body is comprised of plate aluminum
construction
with LEDs and wiring recessed and potted
into the face
of the plate. Driver, wiring box, and
mounting interfaces
are connected to the top of the plate.
Temperature range: -35°C to 40°C. Weight: 46 lbs.( 21 kgs !!!! Where ????? )
FINISHES
White, Gray or Black powder coat finish.

TESTING AND
COMPLIANCE

ETL/cETL & NOM listed
RoHS compliant
IP66-rated optical assembly*
50,000 hours at L70 @ 40°C
LM79 available upon request
IES files available upon request
DLC listed
5 year warranty

*ip rates.JPG
 
stardustsailor

stardustsailor

Well-Known Member
42 x 23.75 ....
Please ,somebody ensure me that these ain't inches ...
That they are ...centimeters ....
It can't be inches ...It's fuckin' HUGE !
( ~ 107 cm x 60 cm !!!! )
 
stardustsailor

stardustsailor

Well-Known Member
[QUOTE="Positivity, post: 10508609, member: 541027"]2' x 3.5' aluminum plate..plus probably pretty thick to set everything in the plate. 400w? I bet it gets pretty hot..

Nice design..although the lumen output is a little low at 34000 lumens[/QUOTE]

size2.JPG

o_O.....

?

bongsmilie
 
Abiqua

Abiqua

Well-Known Member
@FranJan Those illumitex clusters you have are Awesome! I have seen these @ Mouser and wondered about these guys. Guess I might have to look again! :peace:

I think Procyon has been listed before, but a local distributor of Sunlight S and others has a 100w cree fixture on clearance for a reasonable price....but they are referring to them as Cree Xlamps, which are also the name of the single diode's on board they sell on Ebay, that aren't that impressive IMB.

Any thoughts on these?

http://www.growlights.net/item_description.php?IID=1167
 
Bad Karma

Bad Karma

Well-Known Member
Abiqua said:
@FranJanI think Procyon has been listed before, but a local distributor of Sunlight S and others has a 100w cree fixture on clearance for a reasonable price....but they are referring to them as Cree Xlamps, which are also the name of the single diode's on board they sell on Ebay, that aren't that impressive IMB.

Any thoughts on these?

http://www.growlights.net/item_description.php?IID=1167
Click to expand...
Wow, flashback to about 4 years ago, and this was considered to be one of the best LED lights available.
Like you said though, Abiqua, they're not very impressive.
They really weren't back then, either, but now they're definitely outdated.
 
FranJan

FranJan

Well-Known Member
@ Abiqua- There's a place on Amazon that sells 25 F3s for 200.00, that's about the best deal on Illumis you are going to get, at least what I can find. Very pricey on Mouser. And the Procyon 100 is old tech. I used to joke it will make one hell of a door stop to someone's grow room in the future :). And no way it does 10 sq ft, especially in flower. I wouldn't for bite for 300. Not for just dual R+B. For 250 I would do this: http://www.amazon.com/LIGHTS-SPECTRUM-PLANT-GROWTH-SYSTEM/dp/B00DLJ7VRC/ref=sr_1_2?ie=UTF8&qid=1400281458&sr=8-2&keywords=Illumitex
That's 24 F3, 3 bars- 8 per, though it needs a little modding IMHO, like a different driver and the outside bars should be rotated/moved in more. There's an F1 available too and they're the supposed most efficient Surexis. I have one I use for vegging which I use in a 2'x3'. Works very well, but moving the outside bars in really helps. Gets nodes tighter, but I bet upping the driver from 450 to 530mA will really get it working. Peace!
 
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