About Serfas Thunderbolt 2.0 Rear Light
The Serfas True Series light line was developed to be the best on the market. Given the True stamp of approval, these tail lights will meet & exceed their expected lumen output while offering you all the features you’ve come to enjoy from Serfas lighting. Please welcome the new line of True Series lights & be prepared to turn night into day.
Super Bright (50 Lumens) *Daytime Flash
Auto Safe Mode
Last Mode Memory
USB Remote Switch Compatible
Aero Post Compatible
Solid Modes: High (25 Lumens): 1.5 hrs, Medium (15 Lumens): 2.25 hrs, Low (10 Lumens): 5.5 hrs
Flash Modes: *Daytime Flash (50 Lumens): 19.5 hrs, High Flash Slow (25 Lumens): 9.5 hrs, High Flash Fast (25 Lumens): 5 hrs, Low Flash (10 Lumens): 13 hrs, Auto Safe Mode Extends Runtime an Additional 45 mins
Weight: 40 Grams with Bracket
Battery: 500 mAh Lithium Polymer
Serfas has been committed to bringing top quality bicycle parts and accessories to market for over 20 years. They are dedicated to providing innovative, value added cycling parts and accessories that every rider can afford. From their patented saddle technologies to the chic styling of Serfas Optics, you'll certainly find a product that fits you.