Spec wise the Leynze lights seem to be a better value than the L&M. They cost less, have a similar output, and have non-propitiatory batteries that are cheaply user replaceable.
Towards the bottom of this page are some beam shots.
http://reviews.mtbr.com/category/lights-shootout
Here's a review of the L&M range.
http://reviews.mtbr.com/light-motion...ights-shootout
There should be a review of the Leynze soon at the same site.