I am in. I have a very similiar light, just slightly different color and some minor other stuff, but man this light is very nice. Also the battery pack that came with the one I bought really last about 3.5 hours on it on high, as they use BAk A03 18650 batteries, at least in the my pack anyways. Also on low mode, this usually goes for about 9.5 hours. I really, really like this light though. I does get very hot if on high and your idle. On low, it barely gets warm. The thing is, this light is pretty bright and very useful even on low, and LAST's 9 hours, literally!!! I also bought the wide angle lens for this as well!
Advice for your store : We are very picky here and the price are too high compared to other stores also we prefer using our own high quality batteries for safety reason.
I dislike this type of mounting of a bike-light with a rubber strap, they tend to flip down because the light is front-heavy, if only the mounting would be in the middle of the light...