Features: This little device fits on most taps and lights up its LED when you turn on the tap. ABS electrochromism material, excellent corrosion resistance, durable. The light is activated by water pressure and turns off automatically with the water. Colors are mixed displayed automatically when water flow (the light colors are NOT affected by water temperature). Transforming the stream of water into a beautiful waterfall of light. Offer you a delight & wonderful experience. Ideal for bathroom or kitchen to make it fantastic. Get the CE & RoHS certificates. Direction for use: Firstly, take off net from tap screw thread. Secondly, install LED faucet light screw thread. Thirdly, usage of adapter screw thread inside universal adapter. Specifications: Case material: ABS electrochromism LED emitting color: Multicolor change automatically External thread diameter: 2.4cm Item size: 3.5 * 2.8cm / 1.4 * 1.1in(length * diameter) Item weight: 20g / 0.7oz Package size: 11 * 7 * 3cm / 4.3 * 2.8 * 1.2in Package weight: 30g / 1.1oz Package including: 1 * LED light faucet 1 * Thread adapter