LED Companies w/ LINKS

OneHitDone

OneHitDone

Well-Known Member
Tasty has it right by anyone who really understands the point in going to led and the compromise with cob vs single diodes.
Spread them fuckers out! :bigjoint:
 
FranJan

FranJan

Well-Known Member
nevergoodenuf said:
And it looks as if single diodes have jumped ahead again. Check out the CRI and Lumen per watt.
http://www.2ctechnology.com/wp-content/uploads/2016/03/VariableFloodLtFlyerPgXPg.pdf
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More Info from LEDsMagazine. Personally I think the future proof is a bit of hype. It's Zhaga compatible, (which makes upgrading your COBs a snap), is what they mean I bet. Either way it's still a big plus as long as COBs are the go to light in the future, (doubtful but ya never know). Now who's going to Lightfair to weasel one out of them?



(Lafayette, La.) 2C Technology a US based engineering and technology company that designs and manufacturers LED lighting solutions, recently announced the introduction of their revolutionary Variable High Power LED Floodlight that operates at over 190 lumens per watt. Armed with the knowledge and expertise to provide economical solutions for virtually any lighting problem, the company recognized and addressed the need for a more efficient high powered flood light. This new (patent pending) floodlight is unique and available at a price point that provides immediate savings for customers. The light exceeds operational specifications of any floodlight fixture currently on the market. It is “future-proof™”, meaning a proprietary design that allows technological upgrades, maintenance and minor adjustments to be made without having to replace the entire fixture.​

President and CEO, Robert Owens says, “Through long term assessment, research and development we are continually looking at ways to expand our product line so customers get more than they expect. Since the company was founded we’ve been experimenting and developing state-of-the-art lighting that uses lower wattage to produce brighter light. Engineered and improved for the last 10 years, 2C Technology products are designed, manufactured and tailored for all US applications and have a less than 1% failure rate.”
Value added design and engineering services are complemented by integrated manufacturing solutions that are unique to the industry and have positioned the company as a respected authority on replacement lighting for business and industry.

Owens added, “Because it operates at 79% of the LED Diode’s potential, this new light runs cooler and therefore provides a longer lifespan with the most efficient power consumption on the market.”​

The fixtures have adjustable LED Bars that allow variable illumination coverage and feature premium optics that are 2 to 5 times brighter than conventional LEDs. This revolutionary fixture fulfills over 90% of all commercial hi-brightness requirements and is the first LED fixture with interior space to house remote control electronics. Fixtures are available in 40w, 80w, 120w, 160w, 200w and 240w configurations. Visit booth #7206 during LIGHTFAIR, April 26th – 28th at the San Diego Convention Center in San Diego, California to view this new light.


​
 
AquariusPanta

AquariusPanta

Well-Known Member
kmog33 said:
Yeah that was my point with tasty. The thing is the lower profile these lights can be the better, so it only gives you so many options in the actual physical design of the unit because you have to fit all the parts inside.

I just think the arguments over these box panels being copied from other box panels is silly. You can talk about configuration of the parts and that could be unique. But as far as the panels themselves, with the exception of a51 and tasty, they're not. They're all being bought from the same Chinese distributors probably as well lol.

As long as you're putting out quality lights, people will buy them.

I work with real designers and know a few of architects that would be insulted by the fact that these arguments even exist at all lol. Custom configuration does make your fixtures unique though, which is cool. Especially if those design customizations have a functional aspect to them lol.


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I believe Tasty is the remaining cob-fixture company to build their fixtures from scrap, with everyone else getting their cases from China, including A51. A51 had a pre-order option the other day for a ~500$ unit. Had x4 CXB 3070 cobs in it I think, total wall consumption was like ~100W. I don't see that option there anymore though.
 
kmog33

kmog33

Well-Known Member
AquariusPanta said:
I believe Tasty is the remaining cob-fixture company to build their fixtures from scrap, with everyone else getting their cases from China, including A51. A51 had a pre-order option the other day for a ~500$ unit. Had x4 CXB 3070 cobs in it I think, total wall consumption was like ~100W. I don't see that option there anymore though.
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Yep i agree. A51s w90s are unique, the rest of their panels seem pretty standard you're right. Tasty home looking manufactured cases make them unique. Just little aesthetic things lol.

I'm more function over fashion though.

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BOBBY_G

BOBBY_G

Well-Known Member
TheStickiest said:
I need a light for my 2x2 Veg tent, I have a budget of $200. This tent will be mainly for rooting a few clones and vegging one plant to a decent size before its moved into my larger tent, this will be sort of a temporary set up until I acquire more room in the near future.

The tent will have some air cooling but not enough to run a metal-halide in my opinion.

I plan to buy a quality light or build my own in the future but now is not a good time..

Can anyone recommend the "best" LED light for $200 or under? I'm aware its most likely going to be a piece of crap and not last very long.. But hey that's what cheap products do, Oh also I've seen the Area 51's on this site and although they are nice, I cant wait a month I need this light ASAP. Thank you.
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10 pack of 5000K 15W 1500 lumen A19 bulbs - $50 at costco

10 lamp sockets $14 (either the ceiling mount kind you can mount to a board and wire
http://www.homedepot.com/p/Leviton-Plastic-Keyless-Lampholder-R50-08829-CW4/100356849?MERCH=REC-_-nosearch2_rr-_-NA-_-100356849-_-N

or 10 plugin lamp sockets ($23) + a few power strips
http://www.homedepot.com/p/Leviton-White-Outlet-to-Socket-Light-Plug-R52-00061-00W/100170446

well under $100 and you prob wont even use all 10 for that space to get the light you need. a grid of 9 would be an efficient 33 W/SF which would be great for vegging

you dont need 'dimmable' bulbs just unscrew some. you could be using as little as 4 bulbs with just cuttings in there
 
FranJan

FranJan

Well-Known Member
Looks like Illumitex wants someone to help them with their homework, (sorta like another grow light company some of us love sooo much :)). Anyhoo go grab your calculations and see what some PhD has to say. Will she be open to it or is her "challenge" just an attempt to ram Illumitex's calculations down everyone's throats?

Modeling the Unknown – Why Light Calculations are So Hard
https://www.illumitex.com/modeling-the-unknown-why-light-calculations-are-so-hard/​

"In the scientific community, we still don’t understand all the intricacies of photosynthesis and light response pathways, nor can we model the millions of ways light, humidity, temperature, nutrients, and gene expression interact. We don’t have all plant genomes mapped out – and for those we do, we have only a fraction of the genes annotated. What this means is that although we can calculate the cost, efficiencies, and mechanical aspects of lighting; it’s modeling the effects of light on the end product (which is living) that is much more challenging."

As I’ve said before, I like a challenge. That’s why in this next quarter I’ll be putting together research and calculations for the sole purpose of better understanding and modeling the conversion of electricity to light and light to plants. The goal: to come up with strategies in which we can model horticulture lighting from both the unit operations and the efficiency standpoint. Eventually, as we understand more about light and particular crops, we can complete the model with better understanding of expected yields and changes due to crop species. Meaning, these models will be a work in progress.
 
FranJan

FranJan

Well-Known Member
IDK if anyone ever posted info on this light. WTF, here we go.





  • Fixture Wattage: 660 Watts
  • Voltage: 100-277 VAC & 249-528 VAC
  • Photosynthetic Photon Flux (µmol PAR/s): 1148 µmol/s
  • PAR Photon Efficiency (µmol PAR/J): 1.74 µmol/J
  • Optimal Mounting Height: 24” (61 cm) above canopy
  • Optimal Footprint: 4’ (1.22 m) x 4’ (1.22 m), 16 ft2 (1.5 m2)
  • Average Photosynthetic Photon Flux Density (across 4’x4’ area):
    ~800 µmol/(m2 · s)
  • Spectrum: Broad “White” spectrum (not purple)
  • % Blue (400-500 nm): 9%
  • Fixture Dimensions: 40” (101.6 cm) long x 32” (81.3 cm) wide
  • Fixture Weight: 40 lbs (18 kg)
  • Housing and Finish: Extruded Aluminum and Powder Coated
  • Mounting: Y-fit Gripple Hanger
  • Dimmability: 0-10 V
  • Rated Power Factor: >90%
  • Warranty: 5 Year Limited
  • Ingress Protection: Wet location rated
  • Certifications: ETL, RoHS, FCC
  • Photometrics: TÜV SÜD America

​
 
Abiqua

Abiqua

Well-Known Member
FranJan said:
Looks like Illumitex wants someone to help them with their homework, (sorta like another grow light company some of us love sooo much :)). Anyhoo go grab your calculations and see what some PhD has to say. Will she be open to it or is her "challenge" just an attempt to ram Illumitex's calculations down everyone's throats?

Modeling the Unknown – Why Light Calculations are So Hard
https://www.illumitex.com/modeling-the-unknown-why-light-calculations-are-so-hard/​

"In the scientific community, we still don’t understand all the intricacies of photosynthesis and light response pathways, nor can we model the millions of ways light, humidity, temperature, nutrients, and gene expression interact. We don’t have all plant genomes mapped out – and for those we do, we have only a fraction of the genes annotated. What this means is that although we can calculate the cost, efficiencies, and mechanical aspects of lighting; it’s modeling the effects of light on the end product (which is living) that is much more challenging."

As I’ve said before, I like a challenge. That’s why in this next quarter I’ll be putting together research and calculations for the sole purpose of better understanding and modeling the conversion of electricity to light and light to plants. The goal: to come up with strategies in which we can model horticulture lighting from both the unit operations and the efficiency standpoint. Eventually, as we understand more about light and particular crops, we can complete the model with better understanding of expected yields and changes due to crop species. Meaning, these models will be a work in progress.
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RQE.....create a hypothesis with YPF as a possible baseline, poke holes in said theory....integrate with a sphere...Eazy Peazy right?! :)

I mean what's dudes' problem? ;)
 
guod

guod

Well-Known Member
PSUAGRO. said:
*25,000 hr LIFETIME is concerning on a high priced fixture IMO.
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"Rated lumen-maintenance life is measured in hours with associated percentage of light output, noted as Lp. In other words, L70 of 30,000 hours means that the tested LEDs produce 70% of the initial light output at 30,000 hours."
http://www.ledsmagazine.com/articles/print/volume-8/issue-10/features/understanding-the-difference-between-led-rated-life-and-lumen-maintenance-life-magazine.html

What we have here is L90. 90% of the initial light output at 25,000 hours and the temperature is also a bit higher
" Photon Flux maintenance of 90% @ max. ambient operating temperature of 40° C"

the more common number L70 will be above 60,000 hours for this light.
 
PSUAGRO.

PSUAGRO.

Well-Known Member
guod said:
"Rated lumen-maintenance life is measured in hours with associated percentage of light output, noted as Lp. In other words, L70 of 30,000 hours means that the tested LEDs produce 70% of the initial light output at 30,000 hours."
http://www.ledsmagazine.com/articles/print/volume-8/issue-10/features/understanding-the-difference-between-led-rated-life-and-lumen-maintenance-life-magazine.html

What we have here is L90. 90% of the initial light output at 25,000 hours and the temperature is also a bit higher
" Photon Flux maintenance of 90% @ max. ambient operating temperature of 40° C"

the more common number L70 will be above 60,000 hours for this light.
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To my defense that print was really small.....lol....didn't catch it little devil, thanks.

What are you playing with in 2016? Cobs!? ;-)
 
FranJan

FranJan

Well-Known Member
guod said:
I know too much, to run a fixed spectrum point source...damn science
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Fuck Science wth Mathematic's dick :), I'm surrendering.

Narrow Wavelength LED Light is New Rx for Picky Plants
JAMES SCHLETT, EDITOR, [email protected]​
http://www.photonics.com/Article.aspx?AID=58326
​
It does not take a brown thumb to know plants are fickle. But this winter many green-thumb gardeners growing fruits or perennials from seed — in a spare bedroom or whatever doubles as their greenhouse — will not realize just how picky their plants are. Even if the seeds sprout, leaves unfurl and buds flower, their fragrance may not reach its full potential. That’s because fluorescent and high-pressure sodium (HPS) grow lights commonly used to support photosynthesis often fail to adequately deliver the wavelengths of light that result in optimum levels of aromatic volatile compounds.


Exposure to narrow wavelengths of LED light can make strawberries more flavorful and aromatic, but different cultivars of the fruit favor different wavelengths. Courtesy of Thomas A. Colquhoun.​

A growing body of research is showing plants will reach optimum levels for specific volatile compounds that influence aroma and flavor when they are exposed to narrow wavelengths of LED light or combinations of such wavelengths. Full spectrum lighting just will not do the trick for most plants, partly because wavelength intensity is not consistent throughout the spectrum.

The research is showing that to achieve optimum flavor and aroma, most plants want their wavelengths à la carte. And one cultivar, or variety, will not favor the same wavelength or wavelengths favored by another cultivar. In other words, the wavelengths that make one type of strawberry exceedingly flavorful and aromatic will not have the same effect on another type of strawberry, according to Thomas A. Colquhoun, an assistant professor of plant biotechnology at the University of Florida.

“We have to know the code for the plants to get what you want out of it, and that’s just a process of trial and error,” said Colquhoun.

In 2013, Colquhoun published one of the first — if not the first — papers showing light modulation of volatile metabolites in flowers. The paper, published in Postharvest Biology and Technology, showed how a far-red light treatment prompted a spike in the levels of 2-phenylethanol, an important floral volatile. More recently, Colquhoun was involved in the study of a basil variety grown in a greenhouse with exposure to natural light, and in an indoor setting under a combination of narrow-bandwidth LED lights. Compared to the basil plants grown in the greenhouse, those subjected to a specific LED light treatment had a 10 to 15 percent greater yield, had 30 to 40 percent more volatiles and 15 to 20 percent more antioxidants.

“We were able to outcompete the sun,” said Colquhoun.

Last fall, Gothenburg, Sweden-based LED grow-light manufacturer Heliospectra AB also conducted a feasibility study on the impacts lighting had on the aroma of basil. For this study, the plants were subjected to four different lighting regimens, with one consisting of HPS lights and the others involving LEDs. The research last December earned Heliospectra a 458,000 SEK (about $54,000) research grant from Vinnova, the Swedish innovation agency, to continue its research on using LED lighting to enhance plant quality.

“A significant characteristic of an herb is its aroma. This is a factor often overlooked when trying to maximize the crop production,” said Rebecca Nordin, a marketing and communications associate for Heliospectra.

Colquhoun, too, believes the enhancement of plant quality in terms of aroma and flavor is vital for the future of agriculture. Even though conventional grow lights’ blue and red wavelengths, which result in a telltale pink hue, do a good job at increasing biomass, they will not result in optimum plant aroma and flavor.

“People want more flavor in their tomatoes. They want more flavor in their strawberries. If we can make them more flavorful, people will eat more,” he said.

And, who knows, if one day the optimum narrow wavelengths are discovered for cultivars in the Rosaceae family, people will actually want to stop and smell the roses.
 
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