This disco light is the newest cousin to the outdoor underwater fountain, and* tip toes, from the tulips, passed the toilet, to the indoors, for use, in the bathtub, hot tub or pool. The Underwater Disco Lightshow has several different settings: relax with a soothing transition of light or splash around with a psychedelic crazy disco party.
Another plus is this is pretty safe to use in any kind of water, even bubble baths. Which I like. It helps me collect my thoughts after a good nights watching of American Idol, for example.