ZCtron LED Bicycle Red Flowing Bicycle Rear Light, 3 Modes, USB Rechargeable, Water Resistant, Cycling Rear Light for Any Type of Seatpost（Red Light）

【Nice Flowing Lights】Different from traditional flashing taillights, the light is flowing, like photons falling, softer and more beautiful.

【3 Light Modes】Long press to power on/off. Short press to switch modes. Mode 1: Slow flowing light. Mode 2: Fast flowing light. Mode 3: Flashing.

【USB Rechargeable】Supports USB charging, can be fully charged in about 1 hour, and can last for about 10 to 12 hours. No more wasting money buying disposable batteries.

【Water Resistant】Water resistant for daily use, it can resist splashing water. Notice! Cannot protect against heavy rain and soaking!

【Tool-Free】Features adjustable strap, no tools required, and fits most seatpost diameters.