I bought one sure fire flashlight a few years ago. I quickly learned how quickly they can burn through those very expensive batteries. Since then I tend to buy flashlights that operate off cheaper batteries, preferably AA's.
The flashlight I carry everyday runs off of a single AA and last for several months of use plus it is extremely bright. I believe close to 100+ lumens.
I have found that while sure fire had an edge on the market with their super bright LED technology several years ago, other companies have today duplicated it and produce comparable lights for a less expense.
Practice doesn't make perfect, it make permanent.
When I hear a Liberal say "I can speak for gun owners because I own a shotgun" I just want to scream "Well I can speak for vegetarians because I like lettuce on my cheeseburger!"