1. Water-touch switch, energy-saving & environment- protected.
2. Temperature detect switch for different color.
below 31 degree: blue color.
31 to 43 degree: yellow lights on.
43 to 50 degree: red lights on.
over 50 degree: the red lights flash frequency
3. Mixing light and water, bring a dreamlike world.
4. LED light power comes from hydroelectric without any batteries.
5. CE approved