I got this cute little light for my EDC bag, in the "panda" design. The initial charge-up was very quick, and it being USB configured makes it compatible with my portable battery. It gets extremely bright, filling my whole room when I tested it on the medium brightness setting. I have yet to do a proper duration test, but if what the manufacturers have it listed for is true, then it's more than enough to last me on a single charge for a good couple weeks of intermittent use.
It's light, it's bright, and it's small enough to be of no hinderance to me in any way. Let's just hope it can survive a good drop or two. I can be pretty clumsy at times...