Cree changed production process for XP-G2 emitters!

Hehe, it seems that djozz became somekinda “led standart” arround the torch world, great for him and us- he should buy a real spectrometer you know, Assensetek or something,they shooul discount him at least 50%

luminarium iaculator

Thats realy strange, you see i usualy rest every batch that i got with Assensetek Lighting passport, so far Only IOS and KD emitters were as claimed, FT cant be trusted, they sent emitters randomly whatever they got in stock i presume

Well, it could be Cree`s fault at the end…we all know VW diesel story, i wont be surpriced if Cree do the same thing , they are big enough, they can affort that :slight_smile:

So far Hank had good goods… Last good batch of GP-G2 S4 2B were from his store. I bought over 800$ from his store but now… Until I resolve this issue I really can’t be confident to buy again. I did not asked him for refund either…

I only asked him to send me real XP-G2 S4 2B emitters which I will pay cause I have waiting costumers for flashlights, and I can’t deploy them flashlight with low performing emitters he sent.

So if I can’t confidently buy from him from whom to buy now?

If anyone has old batch of this emitters ordered before November 2015 and they don’t need them I am willing to buy them.

And of course I agree we should all buy Djozz more expensive testing equipment. Buck or two from all of us and he’ll get it.

Try to talk to 3tronics. Maybe his batch is older. Don’t know his source but it is worth a try.

You just reminded me :slight_smile: … I bought last 8 pcs he had couple of month ago XPG2 S4 2B bare was £2.25 each + 8£ shipping. They were good although a little rusty from bottom layer of emitter. Will ask him…

I took one more real xp g2 s4 2b from friend and now i took comparison picture with fu duck xp g2 s4 2b

left real xp g2 s4 2b(thinner dedomed) right f ducked xp g2 s4 2b (gas dedomed)

It seems that right one is slightly larger? WTF? with slightly more yellowish phosphor?

I would really be glad to send them all to Djozz…, Something terribly wrong here…

Happy Easter! :slight_smile:

Dont you have a macro mode ? a cleared photo would be nice - the layer`s colour could be changed due to the chemistry you know

O.T

Out orthodox Easter this year is a month after today, i never understood how do they calculate it every year but anyway Happy Easter to our catholic , protestant and any other cristian brother arround the world.

On that day we usualy say: “Jesus has risen” like a greeting

The size differences in the two dies are definitely noticeable.

Will try to take better pics tomorrow… This were taken under room lamp. I know something is bad here… It is either Cree or Hank mixed something up…

Newest f ducked XP-G2 S4 2B looks larger with more yellowish phosphor than real XP-G2 S4 2B

Anyway I hope after Easter holidays Djozz will manage to see this “curious case of xp-g2 s4 2b emitter”

I still have 15 domed ones for testing + 14 dedomed if needed (I killed one with hot dedome)

Do you have a digital caliper? Could you measure the difference between dies? Macro shot would be nice.

I’m surprised that Hank Wang would refer you to djozz in that way. Djozz spends a lot of time doing testing and sharing the results with us. I think he’s made it clear that he has a finite amount of time to spend on this hobby (same as most of us). If djozz offers to help you out that’s one thing, but just expecting djozz to test LEDs for Hank/customer to clear up a $100 dispute is ridiculous!

I agree, clear photos would good. Ideally well lit and directly top-down photos together separate with a scale (ruler / etc) right next to each LED package. That would be great.

I think if I kindly ask Djozz he will do all that for all of us. I did not opened dispute and I did not demanded refund from Hank Wang. I don’t want to be rude but I sucked here and I forgot on that 100$.

I don’t have photo skills or quality photo camera. This was the less blurriest pic I managed to take.
I will try to take better one during daytime.

So here is the riddle:

I am little yellow bugger, totally out of dimensions and I pretend to be king of thrower emitters sold from one of the most respective flashlight parts store on the planet and I suck the blood out of Luminarium Iaculator on Easter… Who am I?

If you send some of these leds to me, I will do an output test on a domed emitter, because that is the state in which these leds are sold and guaranteed to work. I have a nifty little device on order (will take another month to arrive) that can measure colour temperature and CIE1931 values, so when it arrives I can even tell you if the tint is indeed (close to) a 2B.

About given equipment: this is logically followed by more work and the feeling of being obliged to do things with it, neither of which is in agreement with my idea of this being a hobby :wink:

It’s the first Sunday after the first full moon after the spring equinox! Honest. Equinox was Saturday 19th,full moon on Wednesday 23rd so today is Easter Sunday.

Thank you very much Sir!

I will send all non dedomed to you because if they are total useless for me. They will be total useless to you for sure :slight_smile:
Please don’t be angry but I would also like you to test and compare them to real XP G2 S4 2B in dedomed versions.

As I promised… New day pictures are here (I can’t be better than that and Djozz will test them and he is way more qualified for that than I )

Here is Real XP-G2 S4 2B on the left and F ducked xpg2s42b on the right:

Here is real XP-G2 S4 2B surrounded by f ducked xpg2s42b attackers that wants to dethrone it :slight_smile:

I will just say King is only one baby! And he’ll rip your hearts out!

So enjoy guys in this drama.

So King of BLF Djozz will continue with further review of “attackers” :wink:

Cree already increased the Die size of the XP-G2 in the past to achieve higher bins.

seems they did it again. The result is obviously less throw.

I don’t think anybody is at fault here, just the product changed slighty and no longer qualifies for our field of use, which clearly has never beem approved not promised by the manufacturer.

Unfortunately this really sucks for ua thrower fans, as getting fresh stock now becomes a problem.

^^yes, they are the orginal ones. They have just made the DIE size larger. In my test I can´t find any less lux rates. More lumes with a larger die size without to get less lux.

Just thought I would again pitch my 2 cents, please no comments on my freight cost because we know if you want one led today and one tomorrow, I dont have free shipping, but if you buy a few leds then USD15-20 DHL, 2 day delivery cannot be unreasonable, Why buy from a Cree authorised disti, hmm, we can provide you bin/reel ID, Cree Certificate of Conformity, we have a Spectrometer and can provide a Spectral report on leds on request for what we ship.
The value of cheap shipping is a wonderful thing until you get bounced like this, you guys even have a Cree fake awareness sticky on here now, confirming what many of you know, wtf am I really getting
What you need to consider is what is the true value/cost of buying from an authorised source, had my spriuk, back to my nasty choc egg
Happy easter to all
Cheers
Mark

Mark,

what you say might certainly be true for many shady sources, but not for hank.

he is a stand up guy and has the track record to prove it.

In fact a very current batch of the same bin from you will also have the bigger die size, if not now then future batches will.

As I said, cree already upped the die size once…

I was not aiming this at Hank, it was a general statement about where you buy and the probability of risk vs buying from an authorised source and the upside of what that entails. I think if your buying the odd diode here and there you most likely dont care, if your building lights and marketing them as a certain high end product, Im sure your perspective might be different
Cheers
Mark

Well, since that topic became quite hot and i got 15 pcs of those S4 2B from IOS friday( have more incoming) here is a detailed photo compared to a proven S2 1D

The left is S4 2B-as you can clearly see its core is bigger

Voila, we DO have a bigger XPG2 cores now :sunglasses: