about this project Super bright: The white headlights use Samsung LED chips, the system uses high-efficiency constant current circuit design, intelligent low-voltage protection, supports 350Lumin, and is brighter than others. Efficient Charging: The bicycle light has a built-in rechargeable lithium battery, it only takes 1 hour to fully charge, and the maximum use time in low power mode is 10 hours (front light) or 12 hours (backlight), and the low battery reminder function is provided. 4 Modes & 6 Mode Options: The bike light set has a one-button switch, the front light provides 4 different lighting modes, and the tail light provides 6 modes to choose from. And it supports mode memory, you can easily save your favorite mode. Waterproof: Made of IPX5 waterproof material, meanwhile the USB charging port is also protected by a waterproof rubber cover. More importantly, it only weighs 22g each, and its volume is only 30*27.5*47mm. It is light in weight, portable, easy to install and carry. GREAT VALUE: The silicone mounting strap fits snugly on many sizes of seatposts, handlebars, seat risers, backpacks, helmets, and bungee straps to keep the light secure and secure without bending in any way The road shakes. This bike light set is versatile enough for cycling, hiking, camping, or any outdoor activity, and can also be used as an emergency flashlight. It's perfect for cycling at night or where visibility and safety are a concern.