Impressive maximum battery life and hugely bright daylight option. Strap is a little limiting on deep aero seatposts though.

A great light for city commuting with very good battery life. But lacks value for money compared to 900 version.

The Beryl Laserlight Core and Garmin Varia UT800 front bicycle headlights both offer some kind of smart feature, be it the ability to beam a laser bike path a few metres ahead or automatically ...