Serfas Thunderbolt 2.0 Tail Light Rear Bike Light

Gear up with the compact and highly visible Serfas Thunderbolt 2.0 Rear Light. Includes safe mode to run longer even after the stated run-time.

SPECIFICATIONS
Series Thunderbolt
Bulb LED
Lumens 50 lumens
Weight 40 grams
KEY FEATURES
Feature Highlights

Daytime Flash Mode
Up to 19.5 Hours Run-Time
50 Lumens Max Output
Safe Mode - lowest blinking or solid mode after stated run time for an extra 45 minutes.
USB Rechargeable
Box includes

Light
Bracket
Small & Medium O Rings
USB Charging Cable