Serfas Thunderbolt 2.0 Front Light

The Serfas USB Rechargeable bike light offers a range of solid and flash modes to suit different riding conditions. With its USB rechargeable design, the user can conveniently power up the light without the need for disposable batteries.

The solid modes include High (60 Lumens) for 1.5 hours, Medium (40 Lumens) for 2.5 hours, and Low (20 Lumens) for 5.5 hours of runtime. These modes provide consistent and bright illumination for safer cycling, especially in low-light environments.

For added visibility, the light also features various flash modes. The Daytime Flash mode (120 Lumens) runs for an impressive 23 hours, making it ideal for daylight riding. The High Flash Slow (60 Lumens) mode lasts for 12 hours, while the High Flash Fast (60 Lumens) mode operates for 7.5 hours. For extended runtime, the Low Flash (25 Lumens) mode can be used for up to 18.5 hours.

To further enhance the light's performance, the Auto Safe Mode extends the runtime by an additional 45 minutes, ensuring the user can continue their ride with confidence even as the battery level decreases.

The Serfas USB Rechargeable bike light is equipped with a user-replaceable Lithium Polymer battery with a capacity of 500 mAh. This allows the user to easily swap out the battery when needed, ensuring the light remains functional for extended periods.

Weighing in at only 40 grams with the bracket, the light is lightweight and easy to mount on the bike, providing a seamless and unobtrusive riding experience.

Overall, the Serfas USB Rechargeable bike light offers a versatile and reliable illumination solution for cyclists, with a range of modes and runtime options to accommodate various riding conditions and preferences.

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