LED LIGHT- This LED water faucet changes according to the real-time temperature every 1-3 seconds to provide a colorful and changeable lighting effect. This product has a small device built-in electric power generator, which does not need to be powered by a battery. It emits light as long as there is a stream of water. When the water source is turned off, the lamp turns off immediately. Light color can change depending on temperature3 COLORS COLORFUL- 3 colors (blue, green, red) of LED water faucet automatically display when water is flowing, without batteries or external power supply.It displays blue when the water temperature is below 32 degrees, green when the temperature is between 33 and 41 degrees, red when the temperature is between 42 and 45 degrees, and when the temperature is above 46. The display flashes red when the temperature is set.CONVENIENT TO USE- The light color change reminds you of the water temperature and is very convenient and practical to use.WONDERFUL EXPERIENCE- Easy to install and lights up when you turn on the faucet, giving you wonderful enjoyment and experience.WIDE USAGE- Turns the flow of water into a beautiful waterfall of light. Perfect for bathroom or kitchen use. Note: The data is all manual measurement, please allow 1 - 74cm error, due to the difference in light and weather. display, there will be a certain color difference, depending on the physical object received.