Cree changed production process for XP-G2 emitters!

luminarium iaculator

Those new S2 1A are worst than ever m8….i cant believe it realy, the best one so far gave 4.4 amps, and at its top in C8 it its like 125k mcds, exacly like a good DDed XPL V6 ( no ar glass no tail stping bypass)

Hornestly, Cree nuked XPG2

So true…

But Dear Lord…. Why? Why?…

Waiting impatiently. Fingers crossed.

From this picture most guys may conclude quite opposite

New XP-G2 S4 2B right (orange) is “Angry Hulk” S4 LED when de domed. Orange as a freaking orange and yet green as an Angry Hulk when de domed… Fascinating transformation… Just like Hulk in strip or movies… :slight_smile:

Real and old king XP-G2 S4 2B is the one on the left.

I hope Djozz or anyone else can take de domed aspheric beam comparison of both.

This is a damb big problem. Can’t believe whats happening here. The CREE monopoly. Sorry guys, no substitute. Frustrating.

Maybe it’s our lucky day :stuck_out_tongue: :

Maybe. :slight_smile:

Larger die size it looks like though…

Wider viewing angle…

Hopefully a de-dome of a G3 will improve things…

That’s why i said maybe :stuck_out_tongue:

We have to test it first :wink:

I do not see the larger die size of the XP-G3 anywhere?

I recieved few of the new die xp-g2 s4’s and instaled one in a B158 just to test the amps, turns out this thing pulls 4.5A with 30Q @ 4.17v. Im to lazy to dedome it now but with dome on my lux metter says 122kcd at 1m… I guess this thing wont hit more than 200kcd dedomed… huge dissapoitment.

Need to find good source for few s2 2b leds, i want to push my b158 to 290kcd again.

Your correct that is doesn’t state it outright…

I just said that it “looks like” has a larger die size…

With the current knowledge that the latest XP-G2’s seem to have larger die sizes (your own findings :slight_smile: ), and claim similar increases in Lumen/Watt, plus the wider viewing angle of the G3 (which admittedly might be a dome change) and the lower resistance and forward voltage, I would say current evidence suggests that they “look like” they will have larger die size…

We wont know for sure till we get some… And I intend to get some, just in case they are great…

Waiting for someone to stock them. :slight_smile:

I would really like someone send XP-G3 to Djozz for testing… Pretty please :slight_smile:

Dont throw too much hope in this m8, dont you see it has a XPE desing? The whole top is covered with a phosphorus: this automaticly means a bigger emitting angle, its clearly desinged for general lighting . Yet, we have to test it ofc…could be good enough

We all seen what they made from good old XP-G2 emitters (not just mentioned S4 2b from this thread, they messed them up in all bins) so can we expect something good from XP-G3?

Probably not…

I always thought that emitter throw performance should be improved in future by creation of new an innovative led emitters but the new trend is to make bigger phosphor layer emitters which will pump more lumens out of a dice… Pushing lumens and ignore lux performance?

Pushing lumens instead of lux? Maybe someone here may like it. But I am not one of them…

Any news Mark? I saw you active in Xp-G3 thread so I really hope you did not forgot on this thread.

I think there would be a lot of interest in old production type of XP-G2 S4 2B…

Oldest date possible. You can easy spot the difference between them.

And check those shipping to Europe.

Ordered all S3 bins from Mouser lately( K51, KE51, K51 and K53), they all came “improoved” ones…… definately not good for us:/

It would be great if an australian guy order some emitters from Cutter for evaluation, if they came out good we could arrange a group buy, at least the EU folks arround here, personaly i would buy at least 100 if they came one non improoved

I am also in for 100 of old production type of XP-G2 S4 2B!

P.S.

Mitko did you tried XP-G3 in well known host and how it act performance vise?

luminarium iaculator

Still waiting for the samples m8

About the S4 issue: Arrow Eurpoe has 5 bins S4 in stock( reets of 500pcs) - the problem is they dont offer samples from then, i cant even test …. one cant tell whats inside only from the part number( the production dates are 05-07 21015)

Can you tell them to take macro shot of just one emitter from that reel? Difference can be easily seen…

Good old G2 S4 2B

New production type xpg2s42b

I’ll take 50 or more…