Synchronized buck/boost drivers would be best, for those who want to run 1 cell. Buck/*boost* because draining modern 2900/3100/3400mAh cells requires boosting due to them having not-so-high voltage.
Modern cells can’t stay over 3.3-3.4 volts under load?
Anyways, I wonder if we can arrange something with Fasttech about our drivers. /wistful thinking
Nope (at over 2A)
Not totally correct. P=UxI. Different LEDs have different Vf
If someone decides to organise group buy sign me in for 2 or 3 … or 4 
Mouser shipped mine out, Qty 3, XM-L2 T6's. We will see. I got 2 cheapo Sipik SK73 zoomies, 1 with a U2 1A, other with a stock T6. I can do ceiling bounce measurements on these 2, then swap the XML T6 for the new one, interesting comparison then...
I received the 7 xml2 this morning and quickly put them into my dry. I am loving the tint of these leds
33696933 - Wow! That was fast! Dunno about the DRY - single or multi LED? Was the form factor the same for mounting? Height the same? What's the tint comparable to warmer or cooler than a T6 3C? Can you notice brightness diff or can you do a ceiling bounce test w/meter?
Sorry - lots of Q's... You are the first one known to get, see, and install these things... 
the dry is multi (3). it looks similar to a 3c to me
Noticeably brighter or the same?
Ok, maybe this evening you can see how it does in brightness? From the specs for a T6, was expecting it to be at a U3 level - 2 bins higher, probably somewhat difficult to see, though in a 3 LED DRY, maybe it would be more pronounced. Also, there was speculation it will be easier to dedome tham the standard XML's - wondering about that...
Should get mine in a couple of days, chose USPS shipping.
tint wise it looks similar but brighter
Nice! Was hoping it would be noticeable. I'll be getting a lightbox in soon (maybe a few weeks) to do lumens testing from a good source, though got the light meter already. I only got 3 of these LED's coming in, but can do before/after ceiling bounce tests. Interesting to see how it does between throwers and standard lights like a C8. Actually got a brass C8 pill that it would be perfect for - I'm running a U3 1C now in the stock pill, KD V2 driver at 3.8A. If I build up the brass pill with the XM-L2 T6 with the same driver mod, same star, I can swap pills easy - would be interesting.
Crap! should have ordered more - working on mod upgrades now, but 3C tints are not for everyone's taste. Can always order 1/2 dozen more... Not certain about the removal/replacement, but I think you just use the iron w/wide tip and heat the star from below. To put the new one on, apply a little more solder to the 3 lans, then same thing - heat up from below. Did this once to reseat an emitter - seemed to work. I know their are postings on this somewhere here on BLF...
Can you post a few macro photos of them?
For some reason, that looks… delicious.
I’m thinking if that thing is even dedomable? is the dome silicon or plastic? are the wires thicker than a regular xml?
Like sponge cake?
it does look kinda tasty
i can’t wait to see what it looks like w/ an aspheric - seems to be more uniform…but maybe that’s just the pic
i just want to bite it too* :D
*or install it in small sun zy-t08 which is on the way here