Features: Intelligent sensing, automatic adjustment: This bike lights for night riding has an innovative light sensing mode, which can intelligently adjust the switch according to the ambient light, automatically turn off during the day and automatically lights up at night, reducing unnecessary energy consumption while ensuring safe riding at night 4 multi-function mode: The bike lights have four modes, providing appropriate lighting and warnings whether it is a city street or a road High-brightness LED: This lights adopts LED anti-glare design, which provides high visibility while not causing glares to pedestrians on the opposite side, ensuring riding safety. Long-lasting battery life, fast charging: This bike lights rechargeable is equipped with a 1500mAh large-capacity battery, which can be fully charged in about 2 hours. Quick installation, super waterproof: This bike headlight light has a tool-free installation design, which can be easily fixed on the bike, suitable for various riding environments, super waterproof performance, and can maintain stable performance even in rainy day Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Body material: ABS plastic Lumens: 400-lumen Battery capacity: 1500 mAh