Aaah, every time i see this topic makes me feel quite ok that i have stacked quite a good ammount of those old S4 2B: thanks Australia ( and MRsDNF ofc)
nofearek9
Pay attention that even if they are old ones and doesnt mean they are great: i got very close results with S2 1A from the old ones and S4 1A from the new ones( Mouser breeds)
On the other hand nothing can compare with S4 2B….i got some time today and made 2 B158 for the upcoming hunting season…one came up to 343k cds/ 312 after 30secs ( running at 4.8 amps, fresh VTC6): imbalanced zoomie definately, even better than my own
Old production XP-G2 S3 2B really sucks if I compare it to old XP-G2 S4 2B. Like Mitko said pick is necessary to get close to performance of old G2 S4 2B. But they are way better than new production XP-G2 S4 2B!
Old XP-G2 S4 2B had incredible consistency, they were all great performers… Slap it in and candela rises! And I should not fear that I will got rotten egg among them… That never happened(unless dd went wrong way)…
I still can’t accept the fact that in 2016. I have to build lower performing lights (candela vise) than lights I did year ago only because Cree changed production process for them. End they have tendency of releasing even more crappy emitters than “new” s4 2b. That fact is eating my nerves…
If you have real racing horse would you change it to mule? I can’t curse on this forum but -?!*? :smiling_imp: Cree.
Since i order regulary from various sources i `ve found THOSE recently
It seems they are 1d bin, quite a nice looking tint( for my taste) after electrical dedoming plus they perform quite okay( 160k in C8 and 300k in b158, 100k in X6) : ofc they are ” improoved” too yet those are the best improoved XPG2 chips that i`ve found so far
We dont have that great option allright, one cant trust Fasttech binning and labeling : they send whatever they have, IOS have only s4 2b and most of those s2 and s3 bins( or shall i say all of them atm) are also improoved ones
At this moment, XPL CANT take the XPG2 place : bigger hotspot and bigger halo in the reflector based throwers: and especialy the halo thing makes it not okay especialy for a scope hunting
Those numbers look pretty good. Is that on startup or after 30 seconds?
Have you tested enough of them to tell if they are fairly consistently making those numbers or do they have a lot of variability?
Id' be most interested in the XP-G3 groups of LE5 and ME3, with dome. The LE5 one is an S4 bin at 4000K for $2.00 qty 1, and the ME3 is the top S5 bin at 5000K for $2.05 qty 1. But both are relatively low CRI. Seems like you can get high bin neutrals, but you sacrifice CRI -- this is the way CREE is doing it now.
What is electrical dedoming? Must have missed something - never heard of it. Tried warm gas dedoming of a new XPL V6 0D last night, and the outer dome comes off in 1/2 hour, but after 10 hours in gas (no longer warm), the small dome on the dye would not budge. Ended slicing it down and scraping most of it all, not all. No damage to the dye, so I'll see how it works out when assembled in a Manker U21.
Thanks! That would have been my guess, just never heard it called that. Are XP-G3's un-dedomable? Haven't seen much mention of it. Anyone try slicing them?
This one: XPGDWT-01-0000-00M50, Mouser has for $2.07 qty 1, and is the top bin S5, 6000K -- best one I see for dedoming, or this one:
Tom i havent found a soutable method of dedoming clearly V6 0D, tried everything though - i mentioned this issue like 10 times here so far, but it seems you all missed it…i tried like 20 + emitters, both electricaly and chemicaly
V6 1A on the other hand is quite a different story
Mouser also offers V6 from the E1 kit, they are great emitters and dedome pretty fine
About the LE1 thing- its the way Cree supplies big destributors you know- a whole kit, i allready bought from those and they are exacly like those S4 1D that i bought several months ago from Cutter Aus
About those new S5 emitters- they cant be dedomed, at least i cant, the p coat is too fragile ….from 20pcs i managed to get 1-2 good ones, even so the core is bigger and results arent good- its better to use V6
I would never suggest for ppl to order kits like 50, 51,k50 or k51: go for E1-2-3 only: i already got ME2 and ME3 and they are cheap and good
Thanks Mitko! I know there was mentioning of new XPL dedoming problems, but could not recall it was limited to 0D's - sorry bout that. I really haven't been doing dedoming much, and don't have a great memory, and didn't think of searching for it. Just been too busy on firmware, reviews, ATtiny85 projects, etc..
Good to know bout XPL V6 1A's (E1 kit) - definite way to go then. I'll still try the 0D I got mostly dedomed because it looks pretty good. If doesn't perform or look well in the beam, I'll go with a 1A dedomed.
Well m8 , i also got 2-3 good dedomed G3s yet S4 outperform them: even the new ones, just ask yourself, why then he offers those modded M3X with XPG2 but not with XPG3? Actualy M3x XPG2 modded should give like above 420k mcds, i have several of those modded too/ emitters running at M3X driver default( 4.5amps) /
By the way, a good XPG2 modded and well centered M2x gives above 350mcds
For the V6, so far i have tested V6 1A( both IOS and KD breeds), V6( various bins) from Mouser, a localy found V6 E1 kit and E2 too: only V6 0D and those V6 E2 gave me those dedoming issues…maybe a sigle batch issue, who knows
The tint i do prefer is warmer but thats another topic
The other interesting found of mine is the fact that V5 would never tops 6 amps( usualy running at 5.2-3 tops) yet V6 reaches it fairly easy with a good fet and VTC5A.
I also can confirm on low Vf V6’s, i have seen few 3D’s pull 5.8-6A from 25R measured at the tail, might be slightly lower at the emitter but those are very good numbers.
Yea, not sure what MEM was think'n of, or his results of the de-domed XP-G3 exactly. He's checked out for a while now - hoping he comes back. Haven't followed the M3X stuff - wasn't interested in yet another 63 mm head 2 cell or 1 cell thrower, and not cheap as well, plus it's Olight - not my favorite manufacturer.
For throwers for now, my interest lies in something small and pocketable, or really big.