I have something much better than that oddball contraption.
As an automotive machinist I frequently need to use a flashlight. The smaller and brighter the better.
For that reason I have a Stylus StreamLight. Its the size of a bic pen, anodized aluminum and waterproof. All of that is handy for looking into tight spaces, often around machinery that is coated with cutting fluids.
http://www.streamlight.com/stylus_specifications.htm
In addition to being small and convenient it has a well confined beam that is comparable in shape and brightness to that of my 2 AA mini maglite.
It fits very nicely into my work shirt pocket right next to my mini screwdriver and pens.
Even though it does not have an adjustable refector lens the diode's optics are so good I could use it to navigate around at night if I had to.
