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Details

  • The strip of 30 red micro-LED bulbs puts out up to 35 lumens of light; strip design puts out a nondirectional flood of light for wide coverage area
  • Water-resistant, flexible and finish-friendly silicone body and adjustable straps stretch around your bike's frame for easy, tool-free mounting and removal
  • 4 modes (with run times): high beam/constant (1.75 hrs.), low beam/constant (7 hrs.), high flash (3 hrs.), low flash (9.5 hrs.)
  • USB rechargeable design of the Serfas Thunderbolt rear bike light lets you recharge the light via a USB port; recharges in 2 hrs.

Imported.

View all Serfas Rear Bike Lights

REI membership

Specs

Best Use Cycling
Bulb Type LED
Number of Bulbs 30 micro
Taillight Mounting Multiple Locations
Rechargeable Yes
Charge Time 2 hours
Batteries Lithium ion
Integrated Battery Yes
Battery Life On High 1.75 hours
Battery Life On Low 7 hours
Battery Life Flashing 9.5 hours
Weight 50 grams
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