... , Light Shower, Shower Head: 1. Red, blue, green color. 2. 4 function LED. 3. Not need ... experience. When water flows down, the LED will light instantly and automatically, even though no other ... temperature is between 33 and 42 degree, green color will show automatically.2. when water temperature is ... between 33and 41 degree, blue color will show automatically.3. when water temperature is between ...