Powerful 50 lumens rear bike light approved for road safety, bike lamp, bike indicator with 4 modes.IPX65 Waterproof Bike Accessory USB C Rechargeable Up to 10 Hours of Battery Life Bike Light Be Visible Up to 150 Meters: Our 50 lumen bike light provides exceptional visibility with a nearly 180 degree viewing angle, ensuring you're noticed by drivers behind you day and night. Ideal for ensuring your safety during your bike rides, whether in the city or on country roads Long-lasting battery life: bike light equipped with a 400 mAh USB-C rechargeable battery, this rear light guarantees a battery life of up to 10 hours in low light mode. A truly powerful LED bike light that lets you ride with complete peace of mind. Easy and Versatile Installation: This bike accessory comes with several accessories for quick and secure installation on the headset, seat post or under the saddle. Attach it in seconds for optimal visibility, all without tools. Durable and Waterproof: Made of high-quality aluminum alloy, this bike light is shock and vibration resistant, ensuring its durability on rough roads. Plus, with its IP65 waterproof rating, it resists water splashes and rain, allowing you to ride in all weather conditions. Versatile and Money Back Guarantee: This mountain bike accessory is not only suitable for bicycles, it can be attached to running, hiking, or animal harness clothing to make them visible. We are confident in the quality of our products, if despite everything you are not completely satisfied with your purchase, contact us for a full refund or a replacement of the product.