My newest mod, a TF T8/X7 with XML U2, 11x7135 driver(3,9A), UCLp Lens, chanched battery tube for 1x18650 and chanched reflector(bigger hole) for better focus:
Original(SST-50): 43800 Lux
Now(XM-L): ~82000 Lux
With XM-L U2 1C from LEDTech: ~86000 Lux
New: 4,1A, dedomed XM-L U2: ~182000 Lux
Update: 4,6A, dedomed XM-L2 U2: ~248000 Lux
Update: ~5A, dedomed XP-G2 on Copper: ~375000 Lux
Some Wallshots(old):
That, my friend, is utterly SUPERB......
is that x7 head?? what body are u using??
Head and Body are both original parts (TF X7/T8), but the body was shorten with a engine lathe.
Was done by Fritz15:
next i will try to put in a SST-90 Reflector (after some chanches).
sst upgraded to xml... handsome looking
The orig. Trustfire X7/T8 i measured with 43800 Lux.....now 78000. ;)
wish i could replace my x9 head with x7...
x7 head really looks mascular,,,
Wow.
Just wow.
Very nice!! 
I chanched the LED, from KD XML U2 1C to the same XML U2 1C, but from DX.
Also a little bit contact-tuning, now i get ~82000 Lux!
New Beamshots with bigger distance...
With Olight SR50:
Wow. What a big head you got! 
Niceee.
I changed the DX XM-L U2 1C to LED-Tech XM-L U2 1C on copper base, now i get 86000 Lux. :)
I like that a lot. Looks so cool shortened.
Shucks...that copper base U2 costs EUR 20 to my country!
If you buy 2 (Germany) shipping is free of charge ^^ ...
$13.50 for NY, for 1 piece or 10
Nice MOD! Big reflector for XM-L, I like it :)
What is your maximum throw (meters) estimation?
Need to include shipping right?