360 Rotating and sturdy fixing clip design, just slide on or remove the lights in seconds without toolsMade of high-quality aluminum alloy casing, it has excellent impact resistance, heat dissipation and corrosion resistance, If it rains or snows suddenly, you don't need to worry.Guard your safety and illuminate the way forwardThe bicycle headlamp has a 4200mAh battery, USB charging method, long-lasting lightingIntense 1300 Lumen USB rechargeable bicycle headlight in a sleek design that covers the range from road cycling to mountain bikingHigh-capacity rechargeable battery with an extra-long run time. usb bike light can also charge your mobile phone or provide lighting. Even if you are outdoors, you no longer have to worry about your phone running out of power or being dark