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. 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. What's Included? Shower Arm Rough-in Valve Diverter Valve Included Handle Body Jets Features Square rainfall type LED shower faucet system with metal material and polished surface treatment Thermostatic shower system no battery needed and is operated by hydro power. Triple handle ceiling mounted shower head with 2.5 flow rate and its ody material is made of brass. Automatically mixes hot/cold water to desired temp thermostatic mixing valve automatically mixes cold and hot water together to make your desired outlet temperature. Product Details Rough-in Valve Included: Yes Maximum Flow Rate (GPM): 2.5 gallons per minute Shower Head Included Shower Head Type: Dual shower head