... *Brass *3LEDs,no battery needed *Lighting color changes with water temperature-blue,green,red *Water filte Product Featureswater safety, changes colors ... colorLed light color: Blue,Green,Red(According to the water temperature changing)Water pressure: 0.1~0.6 MPAUsage: Kitchen/Wash ... pressure: 0.1~0.6 MPA.3.With the water temperature can change color, below 29 degree-blue light; 30-39 ...