I am using the iTP EOS A-3 upgraded Titanium light with the Q-5 LED. It's maximum output is 80 lumens. It weighs 3gm. more than the Aluminum version, but since it is unfinished, there is nothing to wear away on the edges. If you put the pocket clip on backwards, you can clip the light to the bill of a baseball cap. I just bought a new Aluminum version with an R-5 LED wich cranks out 96 lumens. I cannot find a Titanium light with an R-5 LED. Does anyone know a fast and dirty way to put the 96 lumen innards in the Titanium body?
The titanium light weighs more than the aluminum one? Shouldn't that be reversed?
I may have to buy a Maratac just because I like the way it looks, BUT I love the E05 so far. The price was right too
Some IMR 10440 batteries:
http://www.avidvaper.com/products/IMR10440-3.7v--High-Drain-Li%2dMN-Battery.html
Aluminum is LIGHT.
Titanium is simply stronger, and relatively light for its strength