Features: ABS chroming material, excellent corrosion resistance, durable. The sensitive faucet light will change colors according to the temperature of water. The color's change remind you the water's temperature. Water flash red when temperature above 50¡ãCWater glows Red when water is Hot (temperature above 42¡ãC) Water glows Green when water is Warm (temperature is 33¡ãC - 41¡ãC) Water glows Blue when water is Cold (temperature below 32¡ãC) No batteries and external power supply, it will illuminate after water flows down. Offer you a delight & wonderful experience. Fits on most taps and lights up a set of LEDs when you turn on the tap. Transforming the stream of water into a beautiful waterfall of light.Ideal for bathroom or kitchen to make it fantastic. 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. £¨adapter screw thread not included£© Note:Automatic generation without batteries Specifications: LED emitting color: color random BlueItem size: 32 * 22mmItem weight: 15g Package weight: 25g Body Color: Silver Packing content: 1 x LED light faucet