Eight Adjustable Lighting Modes – This bicycle light set features eight modes, including steady, flashing, and dynamic patterns such as jump lightning and windmill lightning. These options allow for adaptable visibility based on different riding conditions.Rechargeable Battery with Extended Use – Equipped with a 500mAh lithium battery, the light provides up to 15 hours of operation in low mode. The USB charging design enables quick power replenishment, eliminating the need for frequent battery replacements.Flexible and Secure Mounting – The fastening system utilizes a high-elasticity rubber band that allows for easy installation and removal without tools. The stretchable design ensures a firm attachment to the front and rear sections of the bicycle frame.IPX4 Waterproof Construction – Designed with waterproof materials, this bike light remains functional in wet conditions. The USB charging port is covered with a silicone layer, offering additional protection against water exposure for enhanced longevity.Multi-Purpose Lighting Solution – This versatile light can be mounted on bicycles, used for hiking, camping, or other outdoor activities. It also serves as an emergency flashlight, making it suitable for low-visibility environments or nighttime use.