?Feature This little device will light up when you turn on the tap.The LED have only one color(Blue or Green or Red)No battery needed， no wire needed. It is powered by the pressure of water.Transforming the stream of water into a beautiful waterfall of light.Offer you a delight &wonderful experience;Very environmentalEasy to use. Ideal for bathroom or kitchen to make it fantastic.Get the CE &RoHS certificates.Note: The concentration of the color depends on the pressure and velocity of flow(The greater the pressure， the more concentrated water color).If you want to see the effect on our images， please watch in the dark environment!Please check before buying interface and suitability in diameter?SpecificationModel: LD8002-A9(T)Length: 35mm， Outer diameter:28mmInternal thread diameter: 22mm*1LED: 1PCSLED Color: Blue or Green or Red(Please select a color you like by sending us an e-mail， otherwise， we will send random color!)Surface Finishing: Water-platedMaterial: CopperProvide 2 x Adapters(M24*1mm External thread + M20*1mm 1/2 External thread)， fit most of faucet tapsPackage includes: 1 x LED Faucet Tap2 x Adapters(M24*1mm External thread + M20*1mm 1/2 External thread)