I like the good job you did on the Klarus XT 11 shots. I discovered the same increase in output one day when I tried two primary 123s in my XT11. Wow there was a very noticeable increase in output. Ok it won't run as long as the 18650 maybe but what an interesting feature this light has. I also have the floody creamy looking Zebralight SC600 and I would rather have the XT11 as the preferred torch. The SC600 is only 4 inches long and fits the pocket better but boy I like the XT11 interface and output. :thumbsup:
