Serfas Cosmo 15 Lumen Taillight

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This product was added to our catalog on August 24, 2016.

The Serfas Cosmo UTL-15 is a great everyday tail light. Be seen with this 15 lumen, 3 mode, and ABS constructed light.


  • 3 LED Design for Easy Visibility.
  • Triple 5 Lumen LEDs.
  • IPX3 Waterproof. Charges from Dead to Fully Charge in 2 hours.
  • Last Mode Memory.

Solid Modes: High (15 Lumens): 2 hrs, Low (7 Lumens): 4.5 hrs.
Flash Modes: KITT Flash (5 Lumens): 14.5 hrs, Flash (15 Lumens): 4 hrs.
Weight: 56 Grams with Bracket.
Battery: Lithium Polymer.