Nope - but I have mounted an L1T. The mount I used was a Viking Tactics mount
http://www.vikingtactics.com/prod_vtac_lightmount.html - for the L1T I used the insert, but I just measured the inside diameter without the insert and it is about 25.55 mm. the length of the mount is 38.92 mm (hey , I had some calipers laying around
) I think the TK 11 has a 25mm body, but don't know what the spacing is between the bezel and that back ring.
Here's a couple of pics of the mount with the L1T so you can get a feel for the size. Note that it is an offset mount, but it works with thumb up to the tail cap quite nicely with the hand on the rails. Just checked the offset, and the 1.5" head on the TK11 should clear the rail.
Nice thing is the mount very lightweight and is only like $20, but you can probably get it cheaper if you hunt around.
I've only put about 100 rnds thru it with the light on, but the light still works fine.
P.S. I presume you're talking about mounting to an AR with rails - if not, I got nuthin'