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Someone is selling these here on SB: http://www.laluzoptics.com/L800.html
If you don't want to spend $200 though, the Dorcy is just a little longer than the light pictured in your link:
Penetrater 220, Piranha Dive Manufacturing
They're pretty bright - although I haven't used it during the day much. It's my primary for clear water dives at night.
Interesting. There are two Leagues listed here. 125 lumen / 4AA and 400 lumen / 4C
http://www.verdepr.com/sites/default/files/2012%20Princeton%20Tec%20Outdoor%20and%20Dive%20catalog.pdf