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Serfas Cosmo 30 Tail Light

Serfas Cosmo 30 Tail Light
Color: Black


36% off

Lowest Price Guarantee
Guarantee Info


The Serfas Cosmo 30 Tail Light is a great addition to any bike. This aluminum constructed light is both durable and waterproof. It has 5 modes with up to 13 hours of run time. Whether you are commuting or bar hopping, stay visible with the Cosmo 30 tail light from Serfas.

Tech Specs

Model Year2019
Bike TypeRoad/MTB
International AvailabilityUnited States, Canada, Australia, New Zealand, UK, Ireland, Japan


  • Large, Highly Visible Lens for Maximum Visibility
  • IPX6 Waterproof
  • Max Charge Rate 500mA
  • Charges from Dead to Fully Charge in 2 hours
  • Last Mode Memory
  • Solid Modes: High (30 Lumens): 2 hrs, Low (15 Lumens): 4 hrs
  • Flash Modes: Daytime Flash (30 Lumens): 5.25 hrs, High Flash (30 Lumens): 8 hrs, Medium Flash (15 Lumens): 10 hrs, Low Flash (7 Lumens): 13 hrs
  • Weight: 60 Grams with Bracket
  • Battery: Lithium Polymer
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