I've had the nano light for about two years. Had to change batteries once. It rides on my belt loop and I use it almost any given night for a few seconds. Just to keep me from stubbing my toes. I love it cuz it's so small and light.
Didn't know the Keymate existed. I have a nano and love it. I'll try the Keymate, because I am a flashlight junkie. Very good, informative video. Might want to mention both do NOT take the same battery. The output seems almost identical, although the Keymate has a LOT more runtime. It's in my Amazon cart, thanks to your link. Appreciate your video a LOT.
You are very welcome. :) If you haven't run across it yet, you should check out candlepowerforums It's a flashlight based forum for all kinds of stuff. I picked up a really awesome custom made flashlight there way back. I still have it and it is still awesome. :)