1.Keep A Safe DistanceWith premium material and superior craftsmanship, this bicycle tail light has built-in high-quality LED lights that can emit dazzling light (Up to 150 Ft) in a dim environment to remind surrounding vehicles to keep a safe distance from you. The best choice for those who love riding at night or in bad weather! 2.5 Lighting Modes This bicycle tail light has multiple humanized functions. Simply adjust the light mode to your needs. The 5 light modes can transmit different signals. The advanced infrared warning lights can not only help maintain a safe distance but also enhance your vision. 3.USB Charging & Long-LastingThe bike rear lamp can be fully charged with a USB charging cable within hours. And this vehicle rear light can keep running for over 8 hours (Under flashing mode) when it is fully charged. Rechargeable and easy to use, which will definitely be great for earth protection. And also a decent gift for your friends or family who love riding! 4.Waterproof & Easy to InstallWe have taken all bad weather into consideration while designing, and this bicycle light is waterproof and durable, which is perfect for bad weather such as heavy rain/storm/smog/foggy days. It can emit eye-catching lights to ensure riding safety for you. Installation can be completed within minutes! What are you waiting for? Come and get your gorgeous bike tail lights! 5.IPX2 Waterproof : IPX2 waterproof function can resist the rainy days and humid climate, waterproof designed for bike outdoor.