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The Thunder Blast headlight is an upgrade from the original Thunderbolt headlight, featuring up to 100 lumen output in solid or flashing modes, and including the new Serfas audible battery warning system.
72 in stock
We Finance! Up to 18months at 0%
Certified Mechanics Servicing & repairing
Delivery time: Immediately ready for in store retrieval

The Serfas Thunder series lights originated with the Thunderbolt headlight and taillight; among the first bike lights to feature a large array of micro LEDs. Variations on the original Thunderbolt are now available in different performance and output ranges.

  • 100 claimed lumens


  • 2h 00minreported battery life


  • 48 g
  • flashing mode
  • no pulse mode
  • 2 brightness levels
  • internal Lithium batteries
  • micro usb rechargeable
  • Included mounts: Strap
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