When I put my project manager hat on, I carry this with me. On more than one occasion, a contractor needed a flashlight, and this AMP 1L certainly impressed. One man called it a peewee light, haha, but was mightily impressed as soon as he turned it on. If you need a spare light that is highly-pocketable, this is well-worth the price!
I use it at work. It is small enough to hang from my belt loop. When I need a light it is bright and dependable. It is also water proof which is important for me at my job cause I am always around water.