1,The temperature-controlled shower sprayer has a built-in hydroelectric power generation system, which eliminates the need for a battery and external power supply. The LED will light up when the water source is connected. 2,Temperature controlled shower sprayer changes color according to the temperature of water. When the water temperature is ≤32℃, the light will emit green light, and when the water temperature is between 33℃ and 41℃, the LED light will emit blue light. 3,Temperature-controlled shower sprayer, when the water temperature is between 42℃ and 45℃, the LED light will emit red light. When the water temperature is above 45℃, the LED light will flash red. 4,The colorful shower sprayer has a built-in hydroelectric power generation system, which eliminates the need for batteries and external power sources. The LED will light up when the water source is connected. 5,The color of the colorful shower sprayer can change a color every 3 to 5 seconds according to the time, forming a colorful changing effect. 6,ABS material panel, electroplating process, corrosion resistance, rust resistance, durability and long service life. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.