Description: Intelligent Sensing: The bike light is equipped with a built-in intelligent light sensing system that automatically adjusts brightness and turns on or off according to changes in ambient light, saving energy and electricity. High Brightness Illumination: It uses high-brightness LED beads, providing a wide range of illumination with high light intensity to ensure safe during night rides. Aluminum Alloy Material: Made from quality ABS, this bike light is sturdy, shockproof and drop-resistant, effectively extending its lifespan. USB Charging: It supports fast USB charging for long term use and convenience. Versatile Outdoor Lighting: This bike light is not only suitable for night cycling but also suitable for other outdoor activities requiring illumination due to its powerful lighting capabilities. ? Specification: Material:?ABS Size Chart: 10cmx3cmx2.3cm/3.94inchx1.18inchx0.91inch Package Includes: 1 Bike Front Light Note: Please allow slightly errors 1-2cm differences due to manual measurement.