The LED shower head is designed to operate without any batteries. It is equipped with 8 LEDs which give different light colors to indicate different water temperatures. Its simple layout makes it very easy to install and maintain.
Works by water pressure
Temperature sensor.
When water temperature is <28°C, green color will show automatically.
When water temperature is between 29-38°C, blue color will show automatically.
When water temperature is between 39-45°C, red color will show automatically.
When water temperature is above 46°C, red color will flash immediately.