COB Manufacturers other than CREE or BRIDGELUX

Which led brand /manufacturer do you use ?

  • cree

    Votes: 98 58.0%
  • bridgelux

    Votes: 48 28.4%
  • sharp

    Votes: 1 0.6%
  • osram

    Votes: 4 2.4%
  • nichia

    Votes: 9 5.3%
  • toyonia

    Votes: 0 0.0%
  • citizen

    Votes: 32 18.9%

  • Total voters
    169

JorgeGonzales

Well-Known Member
they are new give them some weeks and they will be in stock by other vendors.
Those specs you quoted are pretty much identical to Citizen/Bridgelux, as far as typical values go. +/-6% is good, have you seen a list of binning codes? They mention it, I saw no specifics.

Hopefully they are good, this whole generation is moving up a notch in efficiency, but if they are more expensive in small numbers, they will have a hard time finding traction for DIYers.
 

optzulu

Well-Known Member
They do tc85 not 25 that is a big difference and they have a 6% tolerance citizen 10% and maybe they get effi when running on 1400ma.
 
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JorgeGonzales

Well-Known Member
They do tc85 not 25 that is a big difference and they have a 6% tolerance citizen 10% and maybe they get effi when running on 1400ma.
Neither of us has any idea what variation in flux really looks like in the real world, and again, on paper they are about the same.

I'd like to see how they bin, though.
 

Rocket Soul

Well-Known Member
Please take another look at the datasheet: typical performance at 140 watts: 17770 for 3500k 80 cri= 127lum/w @ nominal power. At Tj=85, not Tc.

The thing that gets me avout this one is that it appears as having a redpeak above the standard 630nm on high cri which somebody might like. But it might be my morning eyes being blind. Also low price in bulk but diy quantities are 40ish at mouser. Digikey 300 moq

Worth putting under a par meter at least
 

Rocket Soul

Well-Known Member
Binning:
CXM-32-35-80-54-AC30-F4-3-ND
F4 is the flux bin, but all chips in this gen seems to be binned F4, even though the lums vary between temp and cri. Less helpfull...
 

CobKits

Well-Known Member
loving these cheap chips that are schooling cree lately, hopefully they come out swinging with their new series. blows my mind that citizen is only 4 mos away from something better than they have now. kinda makes you wonder what all these companies are hiding on their test benches. im sure there is a lot of great tech that hangs out while they clear out old stock and get the most out of the money they put into manufacturing infrastructure
 

ttystikk

Well-Known Member
loving these cheap chips that are schooling cree lately, hopefully they come out swinging with their new series. blows my mind that citizen is only 4 mos away from something better than they have now. kinda makes you wonder what all these companies are hiding on their test benches. im sure there is a lot of great tech that hangs out while they clear out old stock and get the most out of the money they put into manufacturing infrastructure
THIS. It's why smaller companies are more agile than large ones.
 

bassman999

Well-Known Member
I have a few of the xnova cxm 27 from a year or two ago. They work well so the 32s being newer and bigger would be great. Please share your thoughts when you have them
I almost bought some o those, but ended up with CXB3590s.

I have 6 CXA3070s 3000K in the back, and 6 CXB3590s in front.
I run 4 plants 2 back 2 ront, and after 2 runs the back plants always yield more.
So the question is, is it the cobs or something else?
Seems like the CXA yield more.
Im running them at the same power, 1 driver for back and one driver or front.

Ill definately let you know what I think of them, and post pics
 

sixstring2112

Well-Known Member
I almost bought some o those, but ended up with CXB3590s.

I have 6 CXA3070s 3000K in the back, and 6 CXB3590s in front.
I run 4 plants 2 back 2 ront, and after 2 runs the back plants always yield more.
So the question is, is it the cobs or something else?
Seems like the CXA yield more.
Im running them at the same power, 1 driver for back and one driver or front.

Ill definately let you know what I think of them, and post pics
are they both 3000k or are the 3590's the normal 3500k ? maybe more reflective walls in the back row?
 

salmonetin

Well-Known Member
just a bit strange... Rayfiles are online, but no Datasheet for the new 120°
View attachment 3762748
...yeah bro... no info or few info on the news 120º way...

...maybe its today but i cant add photos... or docs now... dont know why...

..i want upload a pic here and various pdfs combineds... but i cant share here...:wall::wall::wall: :cuss:...sorry for bros here...

...maybe im must sharing this things only on the bro Posi forum...:twisted:;)...

...im feeling bit banned or constricted here...

:peace:

Saludos
 
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