Stay safe with one of the brightest rear bike lights on the market: Serfas' 60 lumen Cosmo tail light.

 

 

• Bright 60 lumen USB rear light

• 270 degree Wide angle visiblity design
• Flash modes:
   - Daytime flash 60 lumens (14 hrs)
   - High flash 30 lumens (22 hrs)
   - Low flash 6 lumens (33 hrs)
• Solid modes:
   - High 60 lumens (1.5 hours)
   - Low 6 lumens (5 hours)
• O-Ring mounting for versitility
• Includes charging cable
• Charge time 2 hrs