Serfas Thunderbolt Headlight
Best bright illumination for urban and suburban cyclists.
This compact and lightweight taillight provides 35 lumens of illumination with multiple modes for optimal visibility. Its durable, water-resistant silicone construction and versatile mounting options make it a practical choice for any cyclist. Enjoy extended runtimes and convenient USB recharging for safe night riding.
$44.99
Who it's for
- Urban commuters and city riders prioritizing all-around safety
- Daily cyclists and casual users valuing simplicity and sustainability
- Riders who frequently swap lights or need portable illumination
Who should skip it
- Night adventurers and rural cyclists requiring strong path lighting
- Long-distance riders and those with lengthy night commutes
- All-weather cyclists and riders in consistently harsh climates
Performance breakdown
Mounting Versatility
Flexible silicone strap secures easily to almost any frame or handlebar.
Visibility Output
Adequate for being seen, but lacks power for illuminating dark trails.
Weight Efficiency
Featherlight construction adds zero bulk to your cockpit setup.
Battery Convenience
USB-rechargeable power eliminates the hassle and waste of disposable batteries.
Weather Resistance
Durable silicone housing handles light rain and road spray with ease.
Mode Selection
Four distinct settings provide enough variety for most urban commuting needs.
Key Specs
Lumens
90
Run time
1.5-9 hours
Weight
50 grams
Material
Silicone
Power Source
USB-rechargeable
Water Resistant
Yes
Modes
High, Low, 2 Flash
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