Yes, this is an $80 hand held flashlight. And I get the impression that it was designed for SWAT team members more than cavers.
But it's tough, somewhat waterproof (to IPX-8), and I like the specs. Uses 4 AAs-
468 lumens / 2.5 hours
220 lumes / 6 hours
50 lumens / 27 hours
"Uh-oh. I think we're going to be here for a while" mode- 2 lumens / 150 hours
I like having a handheld light along in certain situations. Or you could always mount it on the side of your helmet.
468 lumens, LOL. To my eye, 225 out of my Fenix HP10 was crazy bright.
Link-
http://www.jet-beam.com/links/pro/pa40.aspx