Yes same thing with mine new S3 2B emitters (10-15% loss comparing to old s4 2B). And less current draw on our Djozz fet driver (only 3.95 - 4.1, while old S4 2B from 4.3-4.5)
Tint is same as old S4 2B and my favorite tint of course no matter you say
Even sadder thought: Somewhere, some major lighting manufacturer has multiple reels of those old S4’s that they will be throwing away because they are upgrading their whole product line to XP-G3.
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.