- Versatile Lighting Options : Enjoy 6 distinct lighting modes to suit your needs. Choose from red high (up to 3.5 hrs), red standard (up to 7 hrs), white standard (up to 7 hrs), strobe flashing (up to 11 hrs), SOS flashing (up to 13 hrs), or red & white alternating flashing (up to 14 hrs) for maximum safety and visibility. - Convenient USB Rechargeable : Save time and money with a built-in 650mAh lithium battery that fully charges in just 2 hours using any USB device. The light is compatible with 5V 1A charging. Plus, it features IPX6 water resistance for reliable performance in various weather conditions. - Enhanced Visibility for Safety : A powerful 120 lumen LED COB light provides exceptional brightness with a 240-degree visibility angle, ensuring you are seen by others when cycling in low-light conditions. - Easy Installation and Quick Release : The bike light attaches effortlessly with a rubber strap, fitting frame diameters from 0.47 inches to 1.26 inches. It can also function as a helmet light or backpack light, offering versatile usage options. - Use Scenarios : Ideal for night cycling, commuting in low-light conditions, or emergency signaling while hiking. This light enhances your visibility on the road and keeps you safe in various outdoor activities. Make your cycling experience safer and more efficient with this essential bicycle tail light.