Serfas TSL-2500
  • 2500 claimed lumens
  • 1h 45min reported battery life
  • 540 g
  • no flash mode
  • no pulse mode
  • 4 brightness levels
  • external Lithium batteries
  • low battery indicator
  • removable battery
  • a/c adapter rechargeable
  • Included mounts: Strap
$425

The TSL series includes Serfas' single-piece USB-rechargeable lights, designed for commuting, road biking, and off-road rides.

This light hasn't been individually reviewed, but other lights in this series have been: