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> Bicycling Catalog > Accessories > Lighting > Taillights > Serfas > Thunderbolt Taillight
Serfas Thunderbolt Taillight

Serfas

Thunderbolt Taillight

$45.00
Availability:
Product Rating
 
5.0 stars
 (3 Reviews)
 

Serfas Thunderbolt Taillight

Serfas' Thunderbolt Taillight delivers 35 lumens in an extremely versatile, USB-rechargeable package. Attach the water-resistant silicone body nearly anywhere on your bike, and use the high, low, or two flash modes to make sure cars or cyclists can see you when approaching from behind after dark. At just 50 grams, you won't even notice it's on your bike — but others will!

Features and Information

  • Run time: 1.75-9.5 hours, depending on setting
 

REVIEW SNAPSHOT®

by PowerReviews
--- [ Replace PRoduct Name ] ---
 
5.0 stars

(based on 3 reviews)

100%

of respondents would recommend this to a friend.

Write a Review

Pros

  • Great visibility  (2)
  • Rechargable  (2)
  • Cool colors 
  • Easy to attach 
  • Long battery life 

Cons

  • Haven't found one yet 
  • Pricey / poor value 

Best Uses

  • Good for commuting  (2)
  • Rear safety light  (2)
  • Keep cars off your A 

Reviewed by 3 customers

Sort by

Displaying reviews 1-3

 
5.0

Very Bright

By Brian

from Mpls, MN

About Me Avid Cyclist

Pros

  • Rechargable
  • Great visibility
  • Low battery indicator
  • Long battery life

Cons

    Best Uses

    • Rear safety light
    • Night commute

    Comments:

    Seriously, do not stare directly at this thing. If passerbys cannot see you, then they are probably illegal to drive. This thing has four modes, high steady, low steady, high flash, and low flash. I have yet to use this on high at all; it's so bright it's just unnecessary. The battery life is pretty decent, I run it on low-blinking mode at get at least 8h on a charge. It charges pretty fast too, within a couple hours max.

    • Gift:
    • No
     
    5.0

    Great Light!!

    By Brad

    from Queens, NY

    About Me Avid Cyclist

    Pros

    • Great visibility
    • Rechargable

    Cons

    • Haven't Found One Yet

    Best Uses

    • Rear safety light
    • Night commute

    Comments:

    This light is great! HUGE value for the money considering it is rechargeable. I have both a front and rear...AWESOME!!

    • Gift:
    • No
     
    5.0

    Bright!!!

    By Digitalman

    from In front of you!!

    About Me Casual/ Recreational

    Pros

    • Very bright
    • Cool Colors
    • USB charging
    • Easy to attach

    Cons

    • A bit pricey

    Best Uses

    • Keep Cars Off Your A

    Comments:

    I attach it to my rear sub frame. Lights up the day or night.

    • Gift:
    • No

    Displaying reviews 1-3

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    Option Barcode Manufacturer's Part Number Vendor Number
    Black 00713835022993 UTL-6BK SER-UTL-6BK
    Green 00713835023013 UTL-6GN SER-UTL-6GN
    Pink 00713835023020 UTL-6PK SER-UTL-6PK
    White 00713835023044 UTL-6WT SER-UTL-6WT