Serfas Combo Thunderbolt 2.0

FEATURES
- Headlight: 120 Lumens*
- Tail Light: 50 Lumens*
- Most Popular Combo Kit
- USB Rechargeable
- Auto Safe Mode Extends Runtime an Additional 45mins

TBT-120F
- Modes: High, Medium, Low, Daytime Flash, High Flash, & Low Flash
- Runtime: Up to 23 hrs (Depending on Setting)
TBT-50R
- Modes: High, Medium, Low, Daytime Flash, High Flash Slow, High Flash Fast & Low Flash
- Runtime: Up to 19.5 hrs (Depending on Setting)