pictorial review of LEDs

pictorial review of LEDs [lotoPics Warning]

Modified from a previous thread concept due to lack of physical differences between CREE editions. Now its a somewhat ideal platform for visual references. :thumbsup:

scratched LuxIII star


LuxV in my L4


USWOL SSC emitter


7060 XR-E in my P1-CE


7090 Q4 in My L0D-CE


If has different versions of LEDs could you post a pic? :thanks:

Re: pictorial review of LED generations?

here is some weird ones, just to keep your thread going.


that 20w thing



that seoul AC thing

OSRAM versus Luxeon 5

Seoul AC?
you actually managed to acquire one? kool

might as well add some more myself
source: https://www.candlepowerforums.com/threads/115286
OSRAM OSTAR LE W E3B, 6 die..its a beauty


the OSRAM compared to a LuxV [source: www.tauchfunzel.de/]


OSRAM OSTAR 4die [source:www.pro-light.jp]


Comparison between Ostars


OSRAM products: Ostar listing
http://catalog.osram-os.com/catalogue/catalogue.do?favOid=000000010001fefb00550023&act=showBookmark

Re: pictorial review of LED generations

http://home.comcast.net/~trivalvid/20W-4.JPG

Why would anyone want to put dies in that weird position? Why not a square or a rectangle?
This looks more like something out of a 1980 videogame.

Re: pictorial review of LED generations

Fallingwater said:

http://home.comcast.net/~trivalvid/20W-4.JPG

Why would anyone want to put dies in that weird position? Why not a square or a rectangle?
This looks more like something out of a 1980 videogame.

Click to expand...

I'm inclined to think its drawing low current to light the dies up but apparently the individual dies operate at slightly different currents

With the help of a magnifying glass...I can finally count all the bondwires in one sweep



trial 2


TWENTY-NINE bond wires compared to SEVENTEEN for the P7
Wonder why the P7 needed that big of a LED to fit 4 when it can easily fit like 16 if its fabricated like the MC-E:shrug:

Re: pictorial review of LED generations

Awesome thread. I'm adding it to the Welcome Mat.

SSC USW0I:


XR-E Q2:


XR-E Q5:

Re: pictorial review of LED generations

:thanks: TigerHawkT3

the SSC is a weird LED IMO...there are NO STRAIGHT EDGES under the dome...compared to luxeon/CREEs they have ABSOLUTELY NO SYMMETRY when you look at it from an angle, but the output is certainly very impressive for its size

a couple more
UFO Starfish LED, [rehosted from thread made by user Brlux][05212009 rehosted again]


OSRAM Golden Dragon [I took apart my sylvania 4AA lantern, here posted post 122]


OSRAM Platium Dragon LED


Philips Rebel [more pics and info available at 100 Lumen Rebel technical evaluation, Rebel NVND]

Re: pictorial review of LED generations

Illum_the_nation said:

I'm inclined to think its drawing low current to light the dies up but apparently the individual dies operate at slightly different currents

Click to expand...

that is correct, it is being driven to just where parts of it light up, and its a bit sloppy in gate precision.

Here's one, perhaps less seen or common Cree led...
of witch i could only guess the bin. It's a 6000+ kelvin tint, and at around 700mA pushes close to a SSC U-bin P4 driven at the same current.
So it could be a Q5. Too close for my eyes to make a big difference, I'd say that the Cree seems to just a (tiny) bit dimmer.

By yo6ial at 2009-02-03

And.. i know, it's a bit offset. It's annoying me too. :ironic:

And a Chinese (One Watt'er )

By yo6ial, 2009-02-03
As bright as ...
Not to mention that it gets hot too :laughing:.

Here are a few pictures that I posted in another thread. I could have sworn that I had found a similar thread to this but now I can't find it anywhere.

SSC P4 (supposed to be U-bin)


SSC P7 (not sure about the bin)


Luxeon III (I think)


Cree XR-E (unknown bin - thinking it's Q5)

PCC said:

Here are a few pictures that I posted in another thread. I could have sworn that I had found a similar thread to this but now I can't find it anywhere.

Click to expand...

Nice macro shots. It that the phosphor you can actually see on the P4!!??

Cree MC-E WC K bin

Yes, I believe so.

PCC said:

Cree XR-E (unknown bin - thinking it's Q5)

Click to expand...

It's at least a warmer tint. Strange how the die is crooked and phosphor layer has ragged edges. Better than SSC's strategy of just piling a glob of phosphor on top of the chip and encapsulating the whole kaboodle...

Neat pics, wish this thread were more alive.

CREE comparisons NW+WW+W100 et al.

heh, glad to see this thread came back to life...

bshanahan14rulz said:

It's at least a warmer tint. Strange how the die is crooked and phosphor layer has ragged edges. Better than SSC's strategy of just piling a glob of phosphor on top of the chip and encapsulating the whole kaboodle...

Neat pics, wish this thread were more alive.

Click to expand...

Interesting...I've never seen a LED with a die that crooked before. As for the Jagged edges, thats an optical illusion looking through the jelly dome. Rather than being completely transparent, its something else altogether. Its usually not noticeable if theres low contrast between the upper phosphor coat and the lower but in this case it illustrates it very well.

More LuxVs...


Nichia CS


Neutral White


Warm White


W100 "Q4" [lol, a complete lack of phosphor IMO]


Luxeon I Lambertian [Red]


the M-bin MC-E that now resides in my L4


Edison RGB 3 Watt Fullcolor EP3M-4S00

nice posting, those some old leds bring back memories. oh the tears and sweat

rizky_p said:

oh the tears and sweat

Click to expand...

of frantically ripping them out then trying to revive them after your mods are done? yeah...

Cyan Side Emitter


Lumina Ceramic


SSC P9

Good pictures. Thanks for uploading.

This could be a silly question, but also could be an important one... so... let me ask it.

Can anybody tell what's the visible difference between P4,Q2,Q3,Q4,Q2 and R2?

I hate when manufacturer made everything looks the same for whole lot of different stuffs.

Physically, I believe they're identical. Only way to find out the difference is to measure the amount of light coming out. The different flux bins are due to variation in manufacturing, just the random things that can't be eliminated regardless of how hard you try, so they make them then test them to decide which bin they fall into.

AWSOME!!!, where do you guys buy or get that kind of LED's?