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  • Serfas Rear Light Thunderbolt 2.0

Serfas Rear Light Thunderbolt 2.0

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  • Super Bright (50 Lumens) Daytime Flash
  • Auto Safe Mode, Last Mode Memory
  • USB Remote Switch Compatible
  • USB Rechargeable
  • Solid Modes: High (25 Lumens): 1.5hrs, Medium (15 Lumens): 2.25hrs, Low (10 Lumens): 5.5hrs
  • Flash Modes: *Daytime Flash (50 Lumens): 19.5hrs, High Flash Slow (25 Lumens): 9.5hrs, High Flash Fast (25 Lumens): 5hrs, Low Flash (10 Lumens): 13hrs, Auto Safe Mode Extends an Additional 45mins
  • Weight: 40 Grams with Bracket
  • Battery: 500 mAh Lithium Polymer
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