Usage Tips:Double bracket design, sitting bow installation + seat bar installation, different installation methods are up to youThe exterior design of the lamp is made of aluminum alloy, which is durable, strong, and fashionableEffectively keep the light transparent, brighter, softer and less dazzlingTool free and convenient installation: there is no need for tools for sitting bow or seat bar, and one button installation is convenient and fastColorful : it is composed of seven kinds of color lights, which can bring you more cool light and shadow experienceFive modes: a of flashing modes, let you become a different landscape on the road of night ridingReal time power display: the four indicator lights in the middle display the power in real time, which makes it easier to charge in timeWaterproof design, not afraid of the impact of bad weather such on the lights (Note: not easy to soak in water for a long time)USB fast charging with built-in 300mAh lithium polymer batteryColour:BlackMaterial:Aluminum alloySize:3x3.4x3.4cmPackage Contents:1* taillight2* fixed 1* sitting post bracket1* sitting bow bracket1* USB data cableOnly the above package content, other products are not included.Note: Light 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. KJ A--GFGFGFGF