"Descriptions: 7 color are mixed displayed automatically when water Features: 100% brand new with great quality; No batteries and external power supply, it will illuminate after water flows down. Transforming the stream of water into a beautiful waterfall of light. Ideal for bathroom or kitchen to make it fantastic. Offer you a delight & wonderful experience. How to install: Firstly, take off net from tap screw thread. Secondly, install LED faucet light screw thread. Thirdly, usage of adapter screw thread inside universal adapter.（adapter screw thread not included） Note:Automatic generation without batteries. Condition: Brand New seat diameter: 24mm. Material: ABS. Pipe size inlet/outlet: 24mm. Note: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand. Make sure you don't mind before you bid. Please allow 1-2mm differences due to manual measurement. Package Included: 1 x LED light faucet SKU:SLT0921"