Turn on the fun in your shower just by turning on the water, the LED lights will automatically light up and set the mood. They will even change colors automatically based on the water temperature, and dim or brighten with varied water pressure. All this with no batteries, everything is self-powered by a built in dynamo that takes advantage of the water pressure to create the energy to light the bulbs.
These shower heads will automatically change colors according to the temperature of the water. You never have jump out of an icy cold shower again. Plus you feel like you're in a nightclub!