Waterproof Bicycle Headlight Mountain Bike Cycling Lamp LED Bike Front Light 350 Lumen USB Rechargeable Features: brand new and high quality. 1. Novel cylindrical design, small and exquisite. 2. Aluminum alloy for shell, beautiful, sturdy, durable, and fast heat dissipation. 3. Highlight 350 lumens white light XPG bulb. 4. Daily waterproof design, button switch and USB charging interface are covered with expanded rubber cove. 5. 4 lighting modes: strong light - medium light - weak flash light - off (click to switch). 6. USB charging interface, support charging and discharging repeatedly. 7. The self-assembled plastic deck is suitable for 18-32mm thick handlebar, also applicable to front and rear forks. Specification: Color: black, red, silver Material: aluminum alloy Length: 6cm/2.36" Diameter: 2.7cm/1.06" Weight: about 80g/2.8oz Li battery: 3.7V, 500MAH Applicable handlebar diameter: 18-32mm Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 1 LED Bicycle Headlight 1 USB Charging Cable 1 Bracket 1 Strap