Features1Multi Mode: Headlamp with strong, medium, weak state and SOS lighting mode, which can last 38 hours of work, for your use needs. 2Bright Light: With 5 LEDs and a maximum output of 1400 luminous flux, the light illuminates dark roads and prevents accidents and potholes, allowing you to see every detail on the road. 3Long Lasting: The built in 4000mAh high capacity rechargeable battery takes only 9 hours to fully charge. for outdoor cycling, running, hiking, camping. 4 Fit: Fits most handlebar tube diameters and can be easily removed from the handlebar to provide an anti theft device. Stable and strong, does not take up all the space on the handlebars. 5Wide Application: Bike lights can be used as emergency flashlights in cars, basements, attics and emergency kits, safe and reliable.SpecificationItem Type:BicycleLightMaterial: ABS,AluminumAlloyColor: BlackFeatures: USB rechargeable high brightness 6 lightsTail Light Battery Type: Lithium battery x2Tail Light Battery Capacity: 4000MahHeadlamp Battery Type: Lithium batteryHeadlamp Battery Capacity: 4000MahPackage List2 x Gasket1 x Gasket Ring2 x Fixing Bracket1 x Tail Light1 x Main Light2 x Charging Cable1 x Fixing Clip1 x English User Manual1 x Installation Kit