Serfas SL-155
  • 155 claimed lumens
  • 7h 30min reported battery life
  • flashing mode
  • no pulse mode
  • 3 brightness levels
  • internal AA batteries
  • low battery indicator
  • removable battery
  • Included mounts: Strap
  • Optional mounts: Helmet

The SL series is similar in design to the USL series, but uses non-rechargeable alkaline batteries instead of integrated USB-rechargeable lithium batteries.

The SL-155 is part of Serfas's redesigned commuter headlight line to be available in 2015. The light features side visibility ports, a lower weight than Serfas' previous lights, and uses removable AA batteries.