About this project [Charming Pattern]: The spoke light consists of 30 colored lights. It can flash 30 different patterns, each pattern changing every 4 seconds. At 12.4 mph, the pattern is crisp and complete. Note: Suitable for wheels over 24 inches in diameter, such as regular bikes, folding bikes, road bikes, mountain bikes, fixed gear bikes, etc. [GET YOUR FAVORITE MODE]: Automatic lighting with manual switch. The TGJOR bicycle wheel light is controlled by motion sensor and manual, after installing the bicycle spoke light, press the "On/Off" button to enter the automatic mode. At this time, the light will come on when the bicycle is running, and it will go out after about 35 seconds of stopping. You can also press the button again to instantly turn off the bicycle spoke lights to save energy.KEEP YOUR RIDE SAFE]: Our bicycle wheel lights are lightweight (0.17 lbs, 2.77 oz net) and super bright, making them noticeable from every angle for maximum visibility on the road, ensuring your ride safe. [Waterproof]: The bicycle wheel light has a waterproof design. So you don't have to worry about the bicycle tire light not coming on when you ride in the rain, but you can't soak it in water for a long time. [POWER BY]: 3 AAA batteries (not included), can last up to 10 hours when working.Products from GuanGuan's store