H51 Brightness

I recently purchased an as new H51 via the marketplace, and having tested it on a couple of different eneloops and an energizer lithium have noticed that in ceiling bounce tests even on the '200lumen' mode it is less bright than my TK20. My 180lumen LD20 Q5 is also noticably brighter than it, and on the H2 '140lumen' mode it seems certainly no brighter than the LD20 Q5's high '98lumen' mode.



I had expected it to do better in ceiling bounce tests, does anyone think mine may be faulty for any reason or is that normal performance?



It'd be good if anyone else with the same above lights could do a quick ceiling bounce test and post their thoughts on it.



Thanks,



RF