Pretty sure the
Aryton Cobra is using that technology, not sure if it's from Kyocera though.
I have a LEP flashlight, it's fun to
play with and impress people. It's come in useful a couple times to
point stuff out first thing in the morning when a tour comes in. But for what they cost it's not really something for most people to have. And I think most people would find a traditional
LED based thrower to be more useful. The beams aren't quite as tight. But they're generally more reasonably priced, and the
spill that lights up the rest of the area is better for most use cases.