The bright wick makes it possible to reduce energy consumption and improve safety performance. And the non-slip design of the bottom makes it very firm and not easy to loosen.Its USB charging design allows it to have a variety of charging methods. The stand design makes it very convenient for you to remove and install.Made of ABS material, it is very durable to use.The length of this product is 5.8cm, the width is 4.6cm and the height is 2.8cm.It fits 22mm-35mm handlebars. And it is suitable for outdoor, night, cycling, dark environment, bike and so on.Item Name: Bicycle LightMaterial: ABSMode: 5 ModesBattery: 1200mAhLumens: 400 LumensWaterproof Grade: IPX-6Charging Method: USB ChargingFeatures: Not Easy to Loosen, Good Visibility, WaterproofSize Details: Size: 5.8cm x 4.6cm x 2.8cm/2.28" x 1.81" x 1.1" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bicycle Light1 x Bracket1 x USB Charging Cable1 x English User Manual