Made of PC casing, it has excellent impact resistance, heat dissipation and corrosion resistance, not only for USB charging port, but also for the entire lamp,Safe use, even in rainy weather.More durable and adjustable,could hold your handlebar very secured, no need worry it will fall off again. Bicycle light mount is fasten with a screw,easy to install ,no tools required.four modes, free to switch according to your needs.The headlight also has a flashlight function that can be used in various scenes, such as cycling, camping, night fishing, walkingThe bicycle light is very bright, the maximum output is 200 lumens, and the five LED lights cover a wide range, allowing you to ride at night to see wider and further areas, and equipped with bicycle taillights to make your ride safer.Number of LEDs: 5LEDColour:blackMaterial: PCSize: 6cm x 9.3cmPackage Contents:1 x Bicycle light1 x USB data cable1 x silicone strapOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.