The Serfas True Series light line was developed to be the best on the market. Given the True stamp of approval, these headlights will meet and 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, and be prepared to turn night into day.
Super Bright (120 Lumens) *Daytime Flash. Last Mode Memory. Auto Safe Mode. USB Remote Switch Compatible. USB Rechargeable . Up to 23hrs Runtime. Aero Bracket Compatible.
Solid Modes: High (60 Lumens): 1.5 hrs, Medium (40 Lumens): 2.5 hrs, Low (20 Lumens): 5.5 hrs. Flash Modes: *Daytime Flash (120 Lumens): 23 hrs, High Flash Slow (60 Lumens): 12 hrs, High Flash Fast (60 Lumens): 7.5 hrs, Low Flash (25 Lumens): 18.5 hrs, Auto Safe Mode Extends Runtime an Additional 45 Minutes. Weight: 40 Grams with Bracket. User Replaceable Battery: Lithium Polymer, 500 mAh.