This high tech rain shower head powers the LED lights using a built in hidden dynamo. The lights will automatically turn on when water pressure is turned on. The lights will dim and brighten when you lower and raise the pressure so you can set the perfect mood, water and light. The shower head will automatically change colors according to the temperature of the water so you always know how the water will feel on your skin just by looking at it. Never be scalded again by entering a shower that is just too hot. When water temperature is ?90F, Green color will show automatically; When water temperature is between 91F~105F, Blue color will show automatically; When water temperature is between 106F~113F, Red color will show automatically; When water temperature is above 115F, Red color will flash immediately. The threading is universal so it will fit any standard shower head by simply unscrewing the old one by hand and attaching the new one. A shower arm is not included. This head can be used with ceiling mounted arm. Modern Stylish Design made to match or stand out from your other bathroom fixtures High Quality This modern shower head is made out of STAINLESS STEEL, so its made to last!! Additional Details ------------------------------ Package quantity: 1