Yet Another Gratuitous LED Post
What is cool (or hot) about this one is that not only does the colour of the water change with the temperature (useful to prevent burning and very cute) but it generates the power to run the LED's somehow by the flow of the water. We are not certain if there is a little propeller generating electricity or if it is some kind of caterpillar drive. A colourful addition to your bathroom from ::Seihin-world via ::Gizmodo
after the shower, its a night on the town with our LED cufflinks on.