Bicycle Wheel Lights 32 LED Spinning Light Lamp Bike Accessories Cycling Bikes Bicycles Outdoor Flashing Spoke Light (20 Pattern) Light Sensor & Dynamic Sensor, Auto Open & Close, Energy Saving!This Bike wheel Light without button for power on/off, when the bike moves at night or in dark area, the led bike spoke lights will light intelligently. When the bike stop or at daytime or in bright area , the wheel lights will be off within few seconds automatically. Power saving and more environment friendly! 20 Patterns Change Design, Supper Bright at NightLED bike wheel light is made of 16 pieces double-sided led lamp beads, 20 patterns, patterns change every few seconds. Better working speed was 20 km/h. Different speed, these bicycle wheel lights will have different effect show. Waterproof DesignThe waterproof level of our outdoor bright bike wheel light is IP55, installing these led bicycle spoke lights, you also don't need to worry about riding in rain day. While not support drop it under water. Safety & Easy Installation our LED bike Spoke lights was very lightweight, wont affect riding speed, safety for night riding. Whats more, dont need any other tool, only need several seconds, these bike tire lights can be installed safely, makes your bicycle noticed at night or dark place by the car or truck and bus. The colorful bicycle spoke light was a perfect Gifts & Christmas Presents for Your family, Friends, Husband, sport partner or Yourself. 180 Days Warranty Our Bicycle wheel light can be installed by most of bicycles with 2.00 mm spokes, such as rode bike, mountain bike, fixed gear bike and ordinary bicycles, etc. But please noted, Suitable for 20 inch bicycle, not suitable for wide spokes bikes. 180 days warranty, buy it with insurance.