Just finished a somewhat harrowing mod on a Xeno eo3 . (Voided the warranty on a perfectly good flashlight)
It works better than ever .
Pretty much de- soldered the stock xml (neutral) & installed one of the new hi cri emitters .
The brightness modes on both Enerloop & 14500 Changed from the stock med/low/high to low- medium- high . With a REAL LOW low.
The modes are so well spaced you would think the driver was custom made for this emitter .
The reflector had to deal with a bit of filing/grinding & a thin anti shorting washer had to be made . The beam is still on the floody side with a nice transition .
I will try to get some photos of the brightness levels .
Really happy with the results.
Tailcap measurements with Enerloop :
Low .03 med .07 high 1.84
Low .03 Med .32 High 1.35