UTL-30 Cosmo 30 (30 Lumens)


SKU: UTL-30 / 713835033081

Quick Overview

Serfas© UTL-30 Cosmo Tail Light

Durable ABS and Aluminum Construction

30 Lumen Output

IPX6 Water Resistance Rating

USB Charging

Full Charge in 2 Hours

Last Mode Memory

465 in stock (can be backordered)



Limited Lifetime Warranty
Serfas® warrants to the original purchaser that the product is free of defects in material, construction, and/or workmanship for the lifetime of the product.

Battery Warranty – One Year Coverage
Serfas® batteries are covered by a 1 year warranty from the original date of purchase.


  • Highly Visible Lens for Maximum Visibility
  • IPX6 Waterproof
  • USB Charging
  • 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 w/ Bracket
  • Battery: Lithium Polymer

Cosmo Light Manual


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