USL-6 Thunderbolt USB Headlight


The Serfas® Thunderbolt (USL-6) provides high-performance and endless mounting options for a great price.

If you’re riding at night, let Serfas® guide the way with our Thunderbolt (USL-6) Headlight. The 16-micro (double strength) LED strip puts out 90 lumens, giving you plenty of light to safely arrive at your destination.

Charge up, light up & get riding safely at night with the Serfas® Thunderbolt.

USL-6 User Manual & Runtimes

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