Generated by water pressure, LED attached to a shower head glows. Since the color of LED changes depending on the water temperature, you can tell the water temperature intuitively.
Check out this introduction article on Chromotherapy: http://www.articleworld.org/Chromotherapy Content: * 1 What do chromotherapists do? * 2 Disadvantages * 3 History * 4 The Chakras and colors
that is sooo cool. Except that you can't choose your color except by adjusting temperature. :( I want to bathe in purple water! :) hehe takes colour therapy to a new level.
http://www.kilian-nakamura.com/blog-english/index.php/shower-storycolor-fusion-shower-self-powered-led-showerhead-buy-online/
http://www.articleworld.org/Chromotherapy
Content:
* 1 What do chromotherapists do?
* 2 Disadvantages
* 3 History
* 4 The Chakras and colors