Waterproof Bicycle Headlight for Mountain Biking - LED Front Light with 350 Lumens and USB Rechargeable Features: brand new and high quality. 1. Innovative cylindrical design, compact and elegant. 2. Crafted from aluminum alloy for the shell, visually appealing, strong, durable, and efficient in heat dissipation. 3. Bright 350 lumens white light from XPG bulb. 4. Daily waterproof design, button switch and USB charging port secured with an expanded rubber cover. 5. 4 lighting modes: strong light - medium light - weak flashing light - off (click to switch). 6. USB charging interface allows for repeated charging and discharging. 7. The self-assembled plastic mount fits handlebars with a thickness of 18-32mm, also suitable for front and rear forks. Specification: Color: black, red, silver Material: aluminum alloy Length: 6cm/2.36" Diameter: 2.7cm/1.06" Weight: approximately 80g/2.8oz Li battery: 3.7V, 500MAH Suitable handlebar diameter: 18-32mm Note: Transition: 1cm=10mm=0.39inch Please allow a 0-1cm error due to manual measurement. Please ensure you do not mind before purchasing. Due to variations between different monitors, the picture may not accurately reflect the actual color of the item. Thank you. Package Includes: 1 LED Bicycle Headlight 1 USB Charging Cable 1 Bracket 1 Strap