I'm fed up of cycling lights that break, stop working for no apparent reason, or simply fall off and get lost.
I also don't want to spend lots of money on lights for each bike, and I don't want to have mountings on my bikes when I don't need them (e.g. in the summer).
I use Lezyne hand pumps and track pumps, and I have been impressed with their quality. So I found this Lezyne lamp and decided to try it. I confirm that it is easily mounted to the bike, easily taken off the bike, but holds its position on the seatpost very well. Its is bright enough for normal night time riding, and has a wide selection of different modes (to suit the level of brightness and visibility required). Battery life is useful, and charging is via the ubiquitous microUSB cable. Am very impressed and heartily recommend it.