For all the Fenix waving Lenser hat0rz out there every single underground shot on this blog is either partially or exclusively lit with a Lenser P7.
I've owned many, some are at the bottom of mines and mysterious shafts where they will lay for eternity (yes I feel super guilty about those decaying batteries), some have been lent to people and never returned, some were submerged for months, assumed MIA and then found (working) months later and the surviving ones ones are permanently attached to Cetacea Coil Landyards to prevent anymore waist deep *PLOP* "Oh Shit!!!" moments :-)
(Need solution for tripod now as last *PLOP* "Shit!!!" moment involved a CSO and a pricey tripod....)
So Lenser released this updated version, this guy is 320 lumen instead of standard 200 lumen so should make some big improvements, he will be coming out on the next underground trip for some testing.
Never buy one of anything ;-p