Get It Before Labor Day Weekend—Order With Free 2-Day*by 5pm MT 9/2/15

Sayonara batteries and adios cables, the USB-compatible USL-R Integrated USB Rechargeable Taillight ensures that your light stays charged and ready with any universal serial bus-equipped computer.

  • Quick-release mount is easy to attach and remove
  • Charge indicator light keeps you updated

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Serfas USL-R Integrated USB Rechargeable Taillight

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Here's what others have to say...

3 5

Surprisingly powerful if you can mount it effectively

I bought this unit with the hopes of mitigating the dangers of riding in heavy traffic.

The light emitted is super visible! Kinda reminds me of that red laser pen that can burn the retina if you get a direct shot. It has 3 modes: continuous, slow flash, and fast flash. It takes approximately 1 hour to charge in a USB port. I haven't run out of power on my usual ride that lasts 3 - 4 hours. Sometimes I forget to turn it off. But no problem!

Mounting it effectively is an issue for me. Finding a suitable spot isn't easy on a BH bike. The rubber strap doesn't hold the unit adequately; road shock just knocks it out of place. I try to point it up and out in the direction of passing cars.

But, I like this device enough to keep it!

PROS: Tiny, powerful, no batteries

CONS: Mounting can be a challenge

Unanswered Question

How and where do you mount this?

How and where do you mount this?