Getek Square 8" inch Led Shower Head Temperature Sensor 3 Colors Changing Bathroom Showerhead Water Temperature Color-Changing LED Shower Head is the World's Most Advanced LED Shower Head! - LED lights are powered by running water, no batteries ever needed Color of LED lights changes automatically according to water temperature  3-color-changing Water Temperature Sensor  LED lights have long life of 6000 hours Suits for 2 gpm/1 gprmTools-free Installation. Connects in minutes to any standard overhead shower arm, no tools required 1 Year Limited WarrantySquare 8" inch shower head rainfall Effect Steady and Safety: CE, ROHS, PAH, EMC Certificates