1.No batteries,no wires needed. Hydro-electric power.

2. When water flows down, the LED will light instantly and automatically;

     A. When water temperature is ＜35℃, Blue lamps turn on.

      B. When water temperature is between 35℃～43℃, Warm-white color will show ;

     C. When water temperature is between 43℃～50℃, Red color will show.

     D. When water temperature is above 50℃, Red color will flash (Alarm)

3. Mixing light with water,people can be bring into a  dreamlike world  from the light-wave shower,especially attract the children.

4. A.Environment-protecting, no battery required

    B. Safety , no extension wire, low voltage, only 6V

5. Easy to install and  replace

6. Elegant design, protected by patent.