Fontana LED Glass Multiple Color Changed Bathroom Sink Faucet. Inside led light will change color when water temperature will change. There is a micromoto inside the faucet and it can supply power to led light forever when water flowing. We gained high reputation with the good quality and best service from the customers. Perfect solution for bathroom. Certified by quality standards, no hard to human, water or environment. Easy to use and leak free. Extended durability ensured by solid construction, Stylish appearance. Self powered by water pressure-No battery or other electricity required. When water flows down, the LED will light instantly and automatically.