LightInTheBox Single Handle Waterfall Bath Vanity LED Faucet, Chrome High-quality faucet with multicolor LED. LED changes color according to the temperature of the water. The light is activated when the water is turned on is powered by four AA batteries (not included). Light colors: 0-30C: Blue 30-40C: Green 41-50C: Red &lt;50C: Red (flashing) Sprinkle Faucets are made of special copper with minimal lead and have high temperature resistance.