LED Shower Head

1, built hydroelectric system, no batteries and external power supply, connected to an instant water, LED will light up; 2, according to water temperature change color. When the water temperature when the water temperature is ≤32 ℃, the lamp glows green when the water temperature at 33 ℃ ~ 41 ℃ when the LED light will emit blue light, when the water temperature at 42 ℃ ~ 45 ℃ when the red LED light will light, water temperature ≥45 ℃ or more, the LED light will blink red.