Hey night riders, this Hanaive bike light set has you covered for safe after-dark cycling! You get FOUR complete sets - that's four front headlights and four back taillights, plus eight USB charging cables. Perfect if you have multiple bikes or want to share with family members. The front light has three modes (strong, medium, and flash) plus a sound mode, while the rear light offers four settings including full brightness, half brightness, fast flash and slow flash. They're made from waterproof ABS material, so a little rain won't stop your ride. The front light weighs about 110g - lightweight enough not to weigh down your handlebars. Installation is super simple with quick-release buttons, and they're compatible with most bikes, scooters, and even skateboards. A full charge gives you 3-4 hours of runtime, and you can even use a power bank to charge on the go. Seriously, riding at night without proper lights is just asking for trouble - these make you visible to cars and help you see the road ahead. Whether you're commuting, mountain biking, or just enjoying evening rides, these lights are absolute essentials for safety. The four-set package makes it great value compared to buying individual pairs!