Bike Wheel Lights (2 Pack) - Waterproof LED Bicycle Spoke Lights - Bike Accessories - 30 Different Patterns Change - Great Gift for Adults Kids

Additional Details from the Manufacturer

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• INTERESTING PATTERN EFFECT SHOWN DESIGN - controlled by riding speed, as picture shows, the faster you ride, the more complete and beautiful the patterns are! When riding speed reaches 18.6 mile/h, the patterns will become complete, cool & perfect. If speed is below 18.6 mile/h, the bicycle wheel lights will show half or part of the pattern. Fun pattern effects.
• WATERPROOF AND EASY TO INSTALL - IP66 waterproof design. No longer worried about the bike wheel lights will be damaged when riding in rainy days, and it can be used in any weather conditions, but pls don't soak the bicycle tire lights in water. Easy to install, don't need any other tools, only need several seconds, this bike wheel lights can be installed safely.
• TWO OPERATION MODES (AUTOMATIC LIGHTING, WITH MANUAL SWITCH) - This bike spoke lights are controlled by motion sensor & manual, differs from other bike wheel lights. After the bike spoke lights are installed, press "on/off" button 2 seconds, enter auto mode: light glows when bike moves, turns off after stop moving for 30 seconds. Manual Mode: Just use the button to turn on or turn off the bicycle spoke lights.
• COOL VARIOUS PATTERNS, BRIGHT & SAFETY - great gift for night riding! Each Dorras A12 led bike spoke light is made of 14PCS RGB Leds, can be seen from both sides, each led can flash 8 colors, high brightness, ensure your bike visible at night. Moreover, this led bike wheel lights can flash 30 different patterns, patterns change every 4 seconds. Be safety! Be cool.
• Buy confidently with our Money Back Guarantee - if for any reason you are not satisfied with our product, please contact us, we will provide you with satisfactory service. When the battery was placed in the holder, the light flashed briefly, then went out. Then Press "on/off" button "2 seconds", Start the light, Enter auto mode.