As I said "IMO" meaning In My Opinion, or my experience, I'm not saying that it can't work for some one else. I was stating how it worked for me. In my experiences I do think it is not a well functioning weapon light, but I did think it was a good flash light due to its compact size I found myself pocket carrying the light for a few months and loved it in that respect.
And as for the battery issue I used mine a lot, for over a year I think it was, never noticed any degradation in battery life. Nor did I ever have to change the battery.

