Mountain Bike Tail Light Bicycle Light Smart Warning Light Power Bank 800mah Lithium Battery Usb Charging High Brightne Description: Brand: Machfally Item model number: Bicycle light Light color: multi-color light Battery capacity: 800mAh lithium battery Battery life: about 8 hours for the first gear, about 4 hours for the second gear, and about 3 hours for the third gear Power supply mode: USB plug, power bank, computer USB interface Specifications: Features: 1. High-brightne LED light:The light bar is equipped with high-brightne LED lights, providing a bright and clear beam of light that illuminates the road ahead, making it easier to see and ride safely in low-light conditions. 2. Rechargeable lithium polymer battery:The light bar is powered by a rechargeable lithium polymer battery, eliminating the need for frequent battery replacements and providing a convenient and environmentally friendly option. 3. USB charging:The light bar can be charged using a USB cable, making it easy to keep the battery charged and ready for use, even when you're on the go. 4. Automatic full power cut-off system:The light bar features an automatic full power cut-off system, which automatically switches the light bar off when it reaches its maximum output, providing added safety and preventing overheating. 5. Four types of modes:The light bar comes with four types of modes, including high/medium/low brightne and flashing, providing a range of lighting options to suit different riding conditions and preferences. Package Included: 1*Bicycle tail light 1*Fixer 1*Charging cable