Cavechat.org

There were a few problems with the Fenix HP-10 as per this forum and others. While it's still available on Amazon and a few other sites the HP-10 is discontinued. The Fenix HP-11 seems to have addressed some of the issues. Also increasing the lumens to 277. They got rid of the coiled cord next to the head, that could certainly snag on anything down under...The diffuser that comes with it looks as though the glare factor might be gone, it's black instead of clear. The headband is bigger. The unit comes in Yellow or black.
I just bought one, I'll give a report soon. The HP-11 wasn't on the regular Fenix site. But they have a Tactical additional one. http://www.fenixtactical.com/fenix-hp11.html