Serfas Cosmo 30 Taillight

In stock
Curbside Pickup

Serfas Cosmo 30 Taillight

The Serfas Cosmo 30 Taillight has two solid modes and four flash modes and will last all night in most flash modes.


  • USB rechargeable
  • Two solid modes: High (30 lumens/2 hours), Low (15 lumens/4 hours)
  • Four flash modes: Daytime Flash (30 lumens/5.25 hours), High Flash (30 lumens/8 hours), Medium Flash (15 lumens/10 hours), Low Flash (7 lumens/13 hours)
  • Water resistance rating of IPX6
  • Charge indicator light
  • Battery status light


  • Cosmo Taillight
  • USB cable
  • Taillight bracket
  • Manual
More Information
BatteryLithium polymer
Charge Time2 hours at 500mA
Manufacturer's Part #UTL-30
Lumens30 lumens (high), 15 lumens (low), 30 lumens (daytime flash, high flash), 15 lumens (medium flash), 7 lumens (low flash)
MaterialAluminum constructed body
Run Time2 hours (high), 4 hours (low) 5.25 hours (daytime flash), 8 hours (high flash), 10 hours (medium flash), 13 hours (low flash)
Weight60 g w/ bracket