Lets talk about "Other" COBS !

[Trippyness]

1

are we talking about the same graph? im talking about the 100W cob

which is similar to a 5000K 3590. that datasheet specifically says the CCT is 3000-3500K. hard to put a lot of faith in a company that has som much conflicting data on their datasheets

Check out the new datasheet. Much better than this one.

 

[BOBBY_G]

is that pricing for the "standard power 84.5W"?

 

[BOBBY_G]

1

Check out the new datasheet. Much better than this one.

seems to be missing a relative luminosity vs current chart

 

[Trippyness]

seems to be missing a relative luminosity vs current chart

I will get that chart tonight. Thats for the 100W COB. I dont believe its listed. Ill have a look.
Ill try to get some more charts, but my tests will be done in the coming weeks anyways on this cob and the 50W to compare to cxb and vero

 

[Atulip]

The citizens are nearly 1/4 the price of 3590s and are as efficient at half watts each. Twice as many chips needed, but cooling those chips becomes easier as well. Ideal holders also available, and mechatronix pins and radials.

You can argue more holes to drill as a downside to more chips, but then you also get a better spread and easier heat management with more chips.

 

[Trippyness]

The citizens are nearly 1/4 the price of 3590s and are as efficient at half watts each. Twice as many chips needed, but cooling those chips becomes easier as well. Ideal holders also available, and mechatronix pins and radials.

You can argue more holes to drill as a downside to more chips, but then you also get a better spread and easier heat management with more chips.

Which exact model?
Would love to see that.
Cree is way overpriced though no doubt.

 

[Trippyness]

The citizens are nearly 1/4 the price of 3590s and are as efficient at half watts each. Twice as many chips needed, but cooling those chips becomes easier as well. Ideal holders also available, and mechatronix pins and radials.

You can argue more holes to drill as a downside to more chips, but then you also get a better spread and easier heat management with more chips.

I do like a better spread with using more chips honestly.

 

[Trippyness]

I will get that chart tonight. Thats for the 100W COB. I dont believe its listed. Ill have a look.
Ill try to get some more charts, but my tests will be done in the coming weeks anyways on this cob and the 50W to compare to cxb and vero

Only issue with this COB is its high voltage but ill still test them.

 

[Atulip]

Which exact model?
Would love to see that.
Cree is way overpriced though no doubt.

https://www.cdiweb.com/PortalProductDetail.aspx?ProdId=585062

I had my eye on those last week but someone bought what was in stock. I'm unsure of the minimum order there though.was gonna pair it with these.

https://www.cdiweb.com/ProductDetail/MODULEDMEGA13420B-MechaTronix/574063/

$21 for a 35w led+heatsink @ 50% efficiency( $.6/w together)

About the same price as a $45 cxb3590 @ 50% (80w for DB bin, $.53/w for the led only)


They have the 3500k 80cri for the same price, also not stocked. Probably the better option.

https://www.cdiweb.com/ProductDetail/CLU0481212C4353M2K1-citizen/585065/

 

[Trippyness]

https://www.cdiweb.com/PortalProductDetail.aspx?ProdId=585062

I had my eye on those last week but someone bought what was in stock. I'm unsure of the minimum order there though.was gonna pair it with these.

https://www.cdiweb.com/ProductDetail/MODULEDMEGA13420B-MechaTronix/574063/

$21 for a 35w led+heatsink @ 50% efficiency( $.6/w together)

About the same price as a $45 cxb3590 @ 50% (80w for DB bin, $.53/w for the led only)


They have the 3500k 80cri for the same price, also not stocked. Probably the better option.

https://www.cdiweb.com/ProductDetail/CLU0481212C4353M2K1-citizen/585065/

Very nice. Ill be looking at a few options for COBS and testing them against CXB 3590.
We need to stray away from Cree as its just a too expensive option and there are just as good of options out there. Plus the increased ROI.
I honestly dont thinkCXB will go down much over the next few years. Ill continue to post here of new COBS I find and test of the new few months. All will be videoed as well for authenticity , but I have no reason to lie. Just get the best PAR and lumen per watt at the cheapest price while retaining longevity and quality.

 

[BOBBY_G]

I honestly dont think CXB will go down much over the next few years.

i do. id bet money on it

every other cob model in their history has come down in price. regardless they are binning higher year over year so the price/performance is steadily dropping

also there is literally too much competition from bridgelux and citizen already, and a bunch of other major mfrs like nichia, sharp, samsung waiting in the wings, as well as probably DOZENS of up and comers like youve found ready to enter the market.

prices have to come down and performance has to go up to keep it a level market or they will be like apple when android was eating double digit shares of its market a few years ago. cree has a lead in the tech, but not by much...

 

[JorgeGonzales]

@BOBBY_G https://en.m.wikipedia.org/wiki/Haitz's_law

And here's a chart. I love charts:

 

[BOBBY_G]

yes thats exponential

 

[BOBBY_G]

http://www.samsung.com/global/business/led/lighting/component/cob
http://www.sharpleds.com/megazenigata.html

nichia, etc.

ill bet there are a half a dozen other major mfrs in the "cobs by companies other than cree or bridgelux" thread

 

[Trippyness]

http://www.samsung.com/global/business/led/lighting/component/cob
http://www.sharpleds.com/megazenigata.html

nichia, etc.

ill bet there are a half a dozen other major mfrs in the "cobs by companies other than cree or bridgelux" thread

Indeed, we need reasonably price high lumen accurate cct and 80 cri.

 

[Trippyness]

Small update.
After going over many COBS and over alot of documentation,CCT etc.
I have found 2 COBS by the same company with good FV under 38V.
100W
50W
Both 160+ lumens per watt at lower current of 700ma and around 150 at 1400ma.
In addition they have COB HOLDERS to make our lives a tad bit easier with no soldering to the chips directly.
At prices under $5USD for the COBS and high quality.
Ill be picking some up for sure to run some tests vs the 3590 and Vero 29 all 3500K.
Will update this thread when received and with real photos .
Will test PAR of each COB all driven off the same driver in the same environment,
I will test them without optics and then with the 80 degree Glass Optics.
This will be over a 5 x 5 space and check the numbers and see if we came close or lost it. Things are looking good.

 

[Airwalker16]

Small update.
After going over many COBS and over alot of documentation,CCT etc.
I have found 2 COBS by the same company with good FV under 38V.
100W
50W
Both 160+ lumens per watt at lower current of 700ma and around 150 at 1400ma.
In addition they have COB HOLDERS to make our lives a tad bit easier with no soldering to the chips directly.
At prices under $5USD for the COBS and high quality.
Ill be picking some up for sure to run some tests vs the 3590 and Vero 29 all 3500K.
Will update this thread when received and with real photos .
Will test PAR of each COB all driven off the same driver in the same environment,
I will test them without optics and then with the 80 degree Glass Optics.
This will be over a 5 x 5 space and check the numbers and see if we came close or lost it. Things are looking good.

Omg this is so exciting!!! You could be changing the game right now man if these live up to our standards.

 

[BOBBY_G]

thanks for taking one for the team trippyness.

 

[Millsie]

Can't wait to see your results! When you report back could you please do individual manufacturers cob lumen/par readings at 6",12",18", 20"?

When are the samples going to arrive, super excited hahaha

 

[Zulunature]

Watching this with interest, it would most certainly end the HPS COB cost debate.

This with some of the heat sink seeking that is taking place could change the game completely, so keep it coming.