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  • Serfas Thunderbolt Front Light
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SerfasThunderbolt Front Light
Sale 60% Off$13.95 $34.95

Item # SRF000G

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  • Blue,One Size ($13.95)
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Item # SRF000G

Good things come in small packages

If your training ride or commute starts before dawn or takes you past the sunset, you want to be as bright as possible so that drivers see you. The Serfas Thunderbolt Front Light is compact, yet bright enough so that you're seen and see your way.

Like its rear counterpart, the Thunderbolt Front Light is versatile enough to mount almost anywhere — from the handlebars to the fork. It's easily removable also so you won't have to fuss with it before your next race. The 16 micro (double-strength) LEDs provide up to 90 lumens in two steady and two flashing modes. Burn time ranges from 1.5 hours on high beam to 9 hours on low blink. When you get to work, it's quickly rechargeable via a USB cable. The silicone body weighs only 54 grams and is highly water resistant so you won't have to worry about rain.

The Serfas Thunderbolt Front Light is available in One color.


  • USB-rechargeable headlight for road cycling
  • Mounts virtually anywhere on the front of your bike
  • 90 lumen LED strip creates a non-directional flood of light
  • High, Low, High Flash, and Low flash modes
  • Weights only 54 grams with bracket
  • Water-resistant if you get caught in the rain
Tech SpecsWeight
Tech Specs
16-micro LED strip
Power Source
500mAh Lithium Polymer battery
High, Low, High Flash, Low Flash
[High, High Flash] 90, [Low, Low Flash] 30
Burn Time
[High] 1.5hr, [High Flash] 2.5hr, [Low] 4.25hr, [Low Flash] 8hr
removable strap, fits virtually anywhere on the front of your bike from handlebar to fork
Recommended Use
road cycling
Manufacturer Warranty
limited lifetime

Claimed Weight

Claimed weights are provided by the vendor.

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Perfect to be seen

    These are great to be seen by cars - not so great to help you see - the light is very broad. They have multiple modes so you can get a flashing mode so you're more readily seen. Great recharging light!

    Basic light, good for the price

    • Familiarity: I've used it several times

    Super simple and relatively inexpensive. I have a habit of not taking my lights off when I go into bars/restaurants, and sometimes they walk off. As a result, I usually look into a combination of rechargeable, simple, and inexpensive. This one meets all of my criteria.

    Very Bright

    • Familiarity: I've used it several times

    These things are super bright! Very nice to ensure you can see and be seen riding around town at night. Only caveat is that it is a bit wide so might be tough to mount on some handlebar setups.