This is a great little commuter light, I'd even say I wouldn't hesitate to use as a backup light for mountain bike night-riding. Battery life has been awesome so far, exceeding manufacturer stated run times. It's nice to not need a charging cable, just plug this into a USB. I use it almost daily to ride to work and back. My only major complaint is that the rubber strap is maxed out on my normal-radius road handlebars and I fear it will wear out fairly quickly, the strap is replaceable but definitely an OEM part needed.
daylight flash mode
- short-ish strap
- strap life (concern, not demonstrated)
- mode-cycling (so many modes can make it annoying to cycle through if you miss one!)