This bicycle lights set includes a front headlight and a back taillight, featuring an ultra slim and lightweight design that won't add extra bulk to your bike. Both lights support USB-C charging, which is convenient and rechargeable. The front light has 5 lighting modes while the rear light offers 6 modes to meet different brightness needs. With IP65 waterproof performance, it can resist splashing water and light rain during riding. Suitable for night riding on both road bikes and mountain bikes, it offers reliable illumination to improve your riding safety.