【Bike Headlight + Taillight】 Featuring 180° wide-angle illumination and 5 lighting modes, this bike light boasts a 180° wide-angle anti-glare design, a maximum brightness of 4000 lumens, and a maximum irradiation distance of 300 meters. It allows you to clearly see the road surface and pavement even in the dark, supporting safe riding. Furthermore, it has 5 lighting modes: auto-sensor mode, high-brightness mode, medium-brightness mode, eco mode, and SOS flash mode, catering to various lighting needs. You can use it with confidence in any environment. 【Newly Developed 5 Light Modes & Light Sensor】 The newly developed intelligent light-sensing mode automatically turns on in the dark, improving convenience while riding and reducing battery consumption. Press the switch to enter the lighting mode. Press it again to switch to the next mode: 1 LED Light Sensor → 1 LED → 2 LED High Beam → 2 LED Low Beam → Strobe 【IPX5 Waterproof & Easy Installation/Removal】 With IPX5 waterproof and dustproof performance, it prevents water, dust, and mud from entering even in heavy rain, allowing you to ride in any environment. The elastic clip and buckle design makes charging easy and prevents theft, providing a comfortable riding experience. Note: After charging is complete, firmly close the rubber cover of the charging port to prevent the effects of sand and rain. 【Easy USB Fast Charging & LED Battery Indicator】 Type-C fast charging fully charges the battery in just 3 hours and can be used for up to 25 hours, eliminating the need for battery replacement. The LED power indicator allows you to check the remaining riding time in real-time, alleviating concerns about range. Note: After charging is complete, firmly close the rubber cover of the charging port to prevent the effects of sand and rain. 【Package Contents & Excellent Durability】 Package Contents: Bike Headlight, Taillight, Bracket (with dial), USB charging cord, Instruction manual. Bike Taillight: Versatile, waterproof design, TYPE-C charging, 4 modes. The housing is made of high-quality aluminum alloy and ABS materials, offering excellent wear resistance, impact resistance, and corrosion resistance, so you can use it with peace of mind.