NEW UPGRADE BIKE LIGHTSBike light features the latest LED technology which will keep you visible at night and also during the day. Powered with 4 ultra-bright LEDs light which gives a wide beam and catches the eye from all angles. Ensuring very high visibility.DURABLE USB RECHARGEABLE BATTERYBuilt-in 650mAh lithium battery makes these LED bike lights super bright in the dark. Bike light can run for over 2 hours on a full charge, allowing you to avoid unnecessary battery replacement forever. They can be recharged with any device featuring USB ports (PC/ Portable charger/ wall charger/etc) and include over-charge protection. Absolutely the best USB bike lights for cycling enthusiasts!FOUR LIGHT MODE OPTIONSBoth the white front light and red rear light support 4 light modes: Constant Full Brightness / Constant Half Brightness / Blasting Flash / Stroboscopic. By simply clicking the button, you can switch modes as you wish. Light up the road ahead of your bike with a bright headlight and call attention to drivers approaching from behind with the bicycle LED taillight, giving you 360 degree protection.WATERPROOF & LIGHT WEIGHTFully enclosed design to protect the cycling light set from rainy days, even the USB port is completely covered, making it convenient to use in all weather conditions. The light weight and sturdy shell guarantees stable performance, which is very important when you ride on complex terrain.INSTALLED SECURELYAdvanced and flexible silicone mounting straps provide great safety, holding the USB-rechargeable bike light set tightly enough to prevent falling off even on bumpy roads. Loosen and fasten them easily without any tools required. Fits all kinds of bikes such as kids bikes/ road bikes.