Description: 1. This product is avant-garde and fashionable, easy to wear, with white light in front and red light warning in the back; 2. Adopt a 3W high-power imported XPG lamp, coupled with a crystal-grade acrylic spotlight cover, with a long light irradiation distance of 30-50 meters at night, so as to see the road ahead clearly and improve safety; 3.USB charging, which can be fully charged in 5 hours, and the interface is sealed with silica gel dust cover after 5 hours of lighting; 4. Equipped with elastic elastic band, the length is adjustable and suitable for wearing; 5. Multi-purpose: suitable for running, walking, jogging, etc. 6. Three flash modes: highlight, half-light, flashing, which can be determined by your own choice. 7. Concentrated models and three-generation rotating models display power in 5 grids, which should be charged when only one grid is bright. Battery models show power in proportion to brightness. Specifications: Product Name: Night Ride Safety Warning Light Charging/Battery Running Light Product size: Headlights: 9*10*2.2cm Taillight: 7.1*1 1.7*1.7cm Color: black red (as shown) Material: ABS elastic webbing Product weight: about 160g Voltage: 3.74.5V Battery: 18650 battery or dry battery (without, need to be purchased separately) Concentrated battery: 1800 mAh Three generations of rotating models: 2000 mAh Charging time: 3-6h Usage time: > 5H (depending on usage) Waterproof: IPX4 (everyday surface waterproof) Note: 1. charge the computer or mobile power USB interface, or use the household power 4.2V to charge, the maximum is not more than 4.5V, if it is impossible to cause irreparable damage. 2. They are waterproof everyday. Do not use them in water or heavy rain. Package Included: A=Battery: 1* running lamp 1*USB cable 1* instruction 1* battery conversion bin 1* box B=USB spotlight: 1* running lamp 1*USB cable 1* instruction 1* box C=USB three-generation rotating spotlight: 1*running light 1*USB cable 1*manual 1*box MODEL522071836266