Cascada Luxury 20" Square Ceiling Mounted Thermostatic Shower System- 2 Rainfall Mode With Automated LED Light RGB Color - Stainless Steel (20 Inch, Polished Stainless Steel) Super Luxury Shower Set With 2 Rainfall Mode Tharmostatic Control LED Light High Quality Silicone Water Nozzle Easy to Install. We Will Provide Installation Instructions Five Years Warranty Product - 1 Year Warranty LED Lights 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. Auto Temperature Detected Light Color Change! Product Features High quality overhead shower head with built-in LED light LED light is activated when the Shower head senses water flow No batteries are needed Surface Treatment: Polished Number of Handles: Dual Handle Style: Contemporary Valve Core Material: Brass Material: SUS 304 Enjoy Modes: Rainfall and Hand shower mode Valve size:7.3*5.3 Inch LED power: Hydroelectric power Shower size:20*20 Inch Hand shower size:8*1.3*0.60 Inch Valve material: Brass 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 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 Never be scalded again by entering a shower that is just too hot! LED light color change properly only when water pressure is enough and steady