Safety First: The waterproof bicycle taillight has a high brightness of 30 lumens and an ultra-wide-angle refraction lampshade, whether it is sunny, rainy, foggy, etc., can provide you with all-weather protection. Steday/Flash Modes: Provide 4 lighting modes through one-button switch, alternately flashes slowly, all lights flashes quickly, alternately flashes quickly, always on. Usb Rechargeable: Rechargeable LED bicycle light, plug in the USB cable for 1.5-2 hours, can be used for 4-10 hours! Installation: We are equipped with a silicone belt, which can maintain stability even when driving on rugged roads; and the bicycle light can be rotated 360, which is convenient for you to install in different positions. You Will Receive: 1 x bicycle rear light: 2 x 2 x 7 cm, 1 x silicone strap: 2.3 x 7 cm, 1 x data cable. It is something that you must have yes or yes at home, be it for the bike, scooter, backpack, at night, camping, signaling something, it serves you for eternal uses. Specifications: Shell: ABS Weight: 55G Maximum brightness: 30 lumens Size: 7 x 2 x 2 cm/2.8 x 0.8 x 0.8 inch Mode: Alternately flashes slowly, all lights flashes quickly, alternately flashes quickly, always on Features: 1.The waterproof bicycle light has ultra-high brightness and ultra-wide-angle refraction lampshade, which can protect you in various weather conditions. Even if you forget to charge, it can reflect the light and provide you with safety warnings. 2.One key switch 4 kinds of constant light/flash mode and can be rotated 360, it is convenient for you to turn the light downward or upward, and provide a variety of different installation positions. 3.The installation is simple and the structure is stable. There is no problem even when riding on rugged roads. It can be used for strollers, wheelchairs, skateboards, backpacks, and helmets to remind others to pay attention to your position. Package Included: 1 x Rear Bike Light