Durable USB Rechargeable Battery -- Built-in 650mAh lithium battery makes these LED bike lights super bright in the dark. Fully charged in 3 hours and lasts over 6 hours, allowing you to avoid unnecessary battery replacement forever. They can be charged with any device with USB ports (PC/portable charger/wall charger/etc) and include overcharge protection. Absolutely the best USB bike lights for cycling enthusiasts!



Four Light Mode Options -- Both the white front light and the red rear light support 4 light modes: Constant Full Brightness / Constant Half Brightness / Flashing Strobe / Stroboscopic. By simply clicking the button, you can switch between modes as you wish. Illuminate the road in front of your bike with a bright headlight and alert drivers approaching from behind with the LED taillight, giving you 360-degree protection.



Securely Installed -- Advanced and flexible silicone mounts provide great security, holding the USB rechargeable bike lights tightly enough to prevent them from falling off even on bumpy roads. Easily loosen and attach them without any tools required. Fits all types of bicycles such as children's bikes/road bikes. The package includes 2 straps + 2 replacement straps.



Waterproof & Lightweight -- Fully enclosed design to protect the bike lights from rainy days, even the USB port is completely covered, making it convenient to use in all weather conditions. The lightweight and sturdy shell ensures stable performance, which is very important when cycling on complex terrain.