We really like the Cygolite Dart 210 for urban riding! It is a bright, compact light for night or day with the DayLightning mode.
Cygolite's Versatite flexible mount is easy to use, can be quickly removed and taken with you to prevent theft mounts easily to most handlebars. We love this kind of mount, especially if you have multiple bikes.
DayLightning mode emits lightning-like flashes to highlight the riders presence.
SteadyPulse mode emits attention grabbing pulses while its overlapping steady beam constantly lights the way