this sensitive faucet light will change colors according to the temperature of water! Water flashes red when temperature is above 50°C Water glows Red when water is Hot (temperature above 42°C) Water glows Green when water is Warm (temperature is 33°C to 41°C) Water glows Blue when water is Cold (temperature below 32°C)

No batteries and external power supply needed, it will illuminate after water flows down. 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 faucets.