Indeed, the L2 takes a 20mm driver.
I was getting confused with a couple of other lights I had drivers built up for, amazing I keep track at all building 4 or 5 lights a day. lol
The stock driver is 20mm but it has some play so 21mm may also fit or a 22mm if it can allow a bit of sanding-grinding from the edge.
That reflector looks nice! Is there any improvement in beam over normal reflector?
I have a clear anodized L6 with a smooth reflector adapted to an MT-G2 emitter. Side by side, there are differences. The smooth reflector has artifacts in the hot spot but the spot is pretty tight. There are larger aura and spill area’s with the reflector as compared to much more subdued aura and spill from the Carmen. Carmen’s hot spot is more smooth, without artifacts, so in general it is more light in the spot and a more pleasing presence of light. These 2 lights aren’t making the same power level, was looking into adressing that just moments ago, so we’ll see after some further modifications just how the two compare.
Carmen is prettier, for sure. 
Both my new version L2’s driver pockets are 21.4mm, the older version was 17mm. I have filed down a 22mmFETDD driver no problem. The problem you might encounter with other 22mm drivers is the ground ring size, on some Buck and Boost drivers have a thin ground ring, the other problem that might happen is some of the SMD’s are pretty close to that thin ground ring, so care must be taken not to interfere with the drive pocket ledge. Ask me how I know! :person_facepalming:
Aha, that 21.something sounded familiar, and wasn’t sure if that was for the L2, L6, or both.
The L6 has always been 30mm.
My L6 Carmen now has an FET driver with ramping firmware, so it should hold it’s own against the silver L6. 
Edit: preliminary reading on a pair of rested Efest 20700’s shows 4 lumens to 3280 lumens, over 10A at the tail. Charging the cells….
Will the beam be pleasing with xhp70.2 and SMO or is it needed to adjust reflector by taking metal of it?(or smaller spacer etc)
The L2 with smooth reflector works with the 70.2 by opening the reflector’s aperture enough to take the stock XHP-70 centering ring, this ring spaces the reflector appropriately and gives a nice beam profile.
I hope I can do testing of the new Narsil/Bistro 1 or 2S boost drivers this weekend, forgot to order LDOs last week, so I got 3 17mm assembled monday with LDOs missing :person_facepalming:
So I had to order more stuff and doing group buy in german forum to get over 60$ for free shipping
I would like 20mm and 30mm 2S 12v+ at 2.8amps for the XHP35’s :+1:
Added a 2mmx12mm green trit vial directly above the switch, when on the shelf… head down… the green glow shows from “under” the switch making it easy to locate and use. NOA is really neat stuff… 
Looks good! What is the behemoth second from the right? On looks alone it's a winner.
That’s my 6th scratch built light. It has a sliced/diced/shaved SST-40 at 2400 lumens and shines over a mile. Yes, the GT puts light on a water tower at 1.9 miles away but this scratch built light does as well, maybe not as much light but you can still see it hitting the tower. A single 32650 runs it at over 9A.
That's quite impressive, a real collectors light! I'd like to call it "The Beast" 
97.5mm reflector, had to use 4 1/4” inch bar stock to make the bezel and adapter section. Threaded the flats on the reflector to make it a suspended member of the head. Kawi’s suggestion.
Hats off to you, that's an awesome custom build if I ever saw one.
Woh. Looks great :sunglasses: is it heavy?
Is 9500 lumen a number you can reach??