This bike wheel light set consists of 20 bright LED lights, making your wheel visible from all angles for night riding. It features three work modes: steady, quick flash, and slow flash. Press the power button to change modes. Enhance your visibility and safety during night rides. The bright and attractive wheel lights create a glorious flash sight, making your wheel more noticeable. There is no riding speed requirement. The colorful spoke lights fix onto the wheel tightly, preventing them from falling. It offers a long battery life with a working time of up to 8-10 hours. The lights are powered by one AAA 1.5V battery (not included). With an IP65 waterproof design, the cycling spoke light works great in rain or snow to enhance visibility. Please try not to ride in the rain. Easy to install and remove, these bike spoke lights fit most bicycles with standard spokes, such as mountain bikes, road bikes, hybrid bikes, triathlon bikes, and touring bicycles. To install, place the battery into the battery case, fix the case on the wheel wire with screws, and wrap the LED light string on the wheel wire. Specification: Product Name: Bicycle Spoke Light Light Bead: Highlight LED Scope of Application: Bicycle Wheel Spokes Power Supply: 1 AAA 1.5V Battery (Not Included) Mode: Flash / Slow Flash / Normally On / Off Color: As Picture Suit: 14-29 Inch Bike Package Includes: Bicycle Spoke Lamp * 2 These accessory parts are made of durable materials, ensuring long-term stable performance and a long service life. Installation is simple and the accessory is easy to install and replace. Precise processing ensures that each part is consistent, improving the machine. The user-friendly design allows for quick installation onto your bike, ensuring a secure fit and saving valuable time during maintenance. We focus on quality and after-sales service. If you are dissatisfied with our products, please let us know.