- Versatile Lighting Options: This bicycle tail light features six distinct modes to suit your needs: - Red high (up to 3.5 hours) - Red standard (up to 7 hours) - White standard (up to 7 hours) - Strobe flashing (up to 11 hours) - SOS flashing (up to 13 hours) - Red & white alternative flashing (up to 14 hours) - USB Rechargeable Convenience: Equipped with a 650mAh lithium battery, this tail light can be fully charged in just 2 hours using any USB charging device. Save money and time with no need for disposable batteries. Charging compatible with 5V 1A max. Plus, it has an IPX6 water-resistant rating for reliable performance in various weather conditions. - Outstanding Brightness for Safety: With 120 lumen output and a 240-degree visibility angle, this LED COB tail light ensures you are seen from all directions. The high transparency PC cover enhances brightness, making your night rides safer and more secure. - Easy Installation and Versatility: The light comes with a flexible rubber strap that easily mounts onto both horizontal and vertical bike frame sections. It fits tube diameters ranging from 0.47 inches to 1.26 inches. Additionally, this light can serve as a bike helmet light or a backpack light, making it a multifunctional safety accessory. - Practical Use Scenarios: Perfect for evening commutes, weekend trail rides, or emergency signaling while camping. This tail light meets the demands of various cycling activities while providing essential illumination and visibility.