Cree changed production process for XP-G2 emitters!

Well you are certainly right about business method.

But don’t be sarcastic about old XP-G2 S4 2B replacement emitter. So would you be so kind and recommend replacement emitter cause I can’t find one. Maybe I am whining but there is really no replacement for it… If you want to suggest I am listening…

And of course I would invest even 1000 $ if someone wants to sell good old XP-G2 S4 2B.

So far only N10sivern helped me and sold 9 pcs although he also needs them.

One would expect that future brings upgrades and no downgrades… So stocking old tech emitters in a fear of possible performance drop of new emitters is not a solution imho cause we are all expecting progress as the time passes by. But If I only knew what I know now I would stock them… Who would think this will happen?

Well, I’m sorry. I don’t know of a drop-in replacement emitter for XP-G2 that performs exactly the same. But, there are some very smart people on this forum and a large number of them have experience with a wide range of emitter configurations. There might have to be other tweaks done besides just changing emitters, and even then, it might not be perfect. But, I’d say that there is a good chance that there’s some kind of path forward. And that finding a path forward is certainly going to be a better use of time than talking about the road that was shut down.

One thing that might help is to look at your current build process, techniques, components, host, et cetera and see if there is something that can be changed to help increase throw for the new emitters. Maybe a tighter reflector, or change to an optic, add a recycling collar, or something.

Path forward is currently lost since emitter is main and most important part or upgrade of a flashlight.

If I have single cell configurations I really don’t want to extend them or modd with lets say buck drivers etc, or adding larger optics/reflectors to have same throw as I had before in smaller configuration…

That in other word means 50mm optics would have to go 70mm to have same throw as 50mm one
Same thing with reflector… Larger reflector to achieve same performance it previously had with smaller one…

Instead that we all rise up against something that is not right like for example this Cree’d changed production process for XP-G2 emitter you are guys talking like everything is fine… Why???

- Just to adopt building or modding process or techniques?

- So what if lux performance dropeed for 30%?

- So what if tint shifts to green one?

  • etc.

In other words so what if they beat me? I can withstand everything?

So we should adopt to manufacturer instead manufacturer adopts to us, our needs? Sorry David but you are terribly wrong here…

If someone messes things up he can make them right for sure… But someone needs to tell them that mistake happened and that it should be changed.

When we are as small as we are and cree is as big as they are, and seeing how cree has no reason to try to please us, yes, you adapt to the manufacturer, not the other way around.

And when an experienced builder reports differences to your findings, it makes no sense to write them off as misinforming the public. Maybe you should try to figure out how they got better results than you.

Alright…

Maybe Cree will not try to please us… Maybe Samsung, LG, Osram and others will look into this thread and try to please us.

I did not seen any results… Did you seen them?

Real results are lux numbers in well known hosts.

Well, with my limited understanding, looking at djozz’ tests, it looks like the closest is Nichia 219C. Maybe you can convince your customers that even though there is some loss of throw, they get much nicer tint and color rendering index from a Nichia. And, since the 219C is still new, there’s probably plenty of room for Nichia to continue improving its performance.

We also still have left to see the performance of the new XP-G3. Maybe Cree will be redeemed in your eyes with this one? I’m looking forward to seeing how it performs.

Sorry, but I doubt that as well. Flashlights are probably less than 1% of the market for these LEDs, and flashlight modification like you do is probably less than 1% of the flashlight market. It would be a terrible business decision to spend money developing products just to meet our desires. We just have to hope that the greater market’s desires fall in line with our own. Luckily that seems like it might be happening with Cree’s HI variants

Well, he was only testing three specific claims: The de-domed tint is green, the Vf is higher, the Die is larger. He told us his results in those areas. The tint was not green to the eyes of his testers, the Vf is actually lower, and the die is confirmed to be a little bigger. He only tested one of each LED ( old and new XP-G2 ).

RMM does use LED Seal, maybe that makes a difference as to why his aren’t green?

Exactly…

He used some kind of lacquer on emitter surface… I will tell to RMM that I also know how to do that but that is not real test…

Real test is pure de domed emitter and not lacquered one. Why?

Cause lacquer changes tint to cooler one

Vinz did that long time ago with “diamond treating” method

So look how 2 same emitters behave when one is “diamond treated” :slight_smile:

And even that won’t change anything! Emitter (XP-G2 S4 2B) will still have significantly les lux performance.

RMM didn’t mention anything about lux, except to say that if the lumens are the same then the lux will be lower because he confirmed the die is bigger. You can’t find issue with a claim he didn’t even try to make.

He was addressing Vf and tint shift (not lux specifically), and you still wrote off his findings.

If dislike the tint so much, use LED seal to fix it. Then find some other solution to your lux problems.

Are you RMM’s lawyer?

His findings are already tested by Djozz (did you even read this thread? ),

So if he entered the thread claiming that there is no tint shift to green one although 20 of us had this issue then I have every right to suspect cause I did test with 20 of them in 2 different hosts. What test can be better than mine test? Tell me…

And I told him that he uses lacquer and that he has tint shift.

So RMM if you are looking this do test without lacquer and then you’ll see that LI is right. Angry Hulk will strike… I assure you.

Edit:
Pilotdog…

My lux problems? We will all have damn lux problems. Don’t address this as exclusively mine problem cause tomorrow you’ll have same problem.

RMM is a lawyer, so he wouldn’t need me anyways. Don’t be ridiculous. I’m just getting tired of the off-base arguments in this thread.

So you agree that the sealant RMM used solved the tint issue for him? Great, then maybe you should also use the sealant to solve the tint issue.

I am trying to help resolve some of your problems, instead of just complaining about a situation you don’t, and won’t ever have control of.

I know the lux dropped, it sucks, but I can’t do anything about how cree changes things, so I’m moving on.

But you guys should direct arguments towards Cree and not toward me.

This whole thing is proven fact.

There is no help or cure for this… Only new emitters or old stock XP-G2 S4 2B one.

Edit:

But we can if we all hold together and if someone(owner or co owner of this forum) writes a note to Cree with reference to this thread.

They are familiar with old production process of G2 emitters so they really can make things better for us.

And THIS attitude is really your biggest roadblock right now. When you think your only hope is to go back to something that no longer exists, then you become utterly hopeless. Change your thinking. Start looking for a way forward, because none of us can make Cree change anything. They have done what they did because it was an improvement by their standards. Start looking at other emitters and other processes and try to figure out how to flow with technology changes instead of against. Companies that try to flow against market changes usually don’t survive long. People who resist change become bitter and useless as the whole world passes them by.

Cree didn’t make a change for no reason, there must have been a very good business reason for the change. As such, the threat of losing a few thousand dollars total from this forum in the next couple of years will make no difference to them, no matter how many people on this little forum complain about it.

I’ve said all I can say about it, as have others. If you want to keep hoping for change from Cree, go for it. The only way I can see it changing is if the difference was just a manufacturing error that didn’t get caught in QC and future batches (if they continue the 2 now that 3 is here) will be back to the old way. So you can hope for that.

Ok,

Cree made really good thing by changing production process for XP-G2 emitters

Actually from their point of view I’m sure they did. Without a doubt it wasn’t something they did lightly. The impact of blf users doesn’t even rise to the background noise level for them.

Hello

I just happened the same :rage: the same leds of the same store (IO)
After dedome turned very very warm tone :confounded: naked eye the phosfor also change to a very yellow tone, low kcds, and low Amp :person_facepalming:

Perhaps I pull my money?

It isn’t Hank’s (IO) fault , as the title says “Cree changed production….” .
I don’t say these new xp-g2’s are good , but pulling your money will only cause Hank to pay them from his wallet .