Serfas TL-STN Taillight

The light features a flexible, silicone body with an integrated strap system. You simply stretch the strap around your seat post or frame tube and hook it into place, requiring no tools for installation.

While it is primarily designed for visibility during dusk and evening rides, the combination of the high-output central LED and six surrounding LEDs provides decent visibility. However, for high-traffic daytime commuting, you may want to consider a dedicated high-lumen daytime running light.

You can expect up to 100 hours of runtime on a fresh set of batteries. This will vary depending on which of the three modes—steady, strobe, or flash—you use most frequently.

Yes, the unit is rated IPX5 for water resistance. Its durable silicone housing is designed to withstand rain, road spray, and other typical weather conditions you might encounter while riding.

The light runs on two CR2032 coin-cell batteries, which are included in the package so you can start using it immediately. These are standard, widely available batteries when it comes time to replace them.

Absolutely. Because of the flexible mounting system, many riders choose to use multiple units to create a 360-degree visibility profile, placing them on both the seat stays and the seat post.