And here is what MSW has to say:
Pedal confidently day or night with the TigerMoth 20-Lumen Taillight attached to your rig. Keep your eyes on the road ahead while its efficient, bright red Micro-LEDs watch your back. USB-rechargeable with simple, tool-free installation.
- USB-rechargeable (charging cable included)
- Features both clip-style attachment and bracket for mounting on seatpost
- Runtime varies from 1.5–15 hours
- 7 lighting modes
- Output: 20 lumens
- Extra mounting brackets sold separately
- Battery: Rechargeable
- Recharge Type: USB
- Lumens Rear: 20
- Weight: 18g
MSW warrants this new MSW product against defects in materials and workmanship for two (2) years from the original date of retail purchase by the consumer.