shower head led with changed led color,red,green and blue color change according to running water termperature.No battery shower head led function:1.LED Qty:9pcs2.LED lighting color: Green/Blue/Red (Temperature detectable)3.casing material: ABS4.Surface treatment: Electroplating5.casing color: metallic color6.When water flows down, the LED will light instantly and automatically7. Low-flow water to maintenance a unique sense of comfort8.Don’t need battery and the power cord1) When water flows down, the LED will light instantly an automatically;   When water temperature is ≤32°C,Green color will show automatically2) When water temperature is between 33°C-41°C,Blue color will show automatically3) When water temperature is between 42°C-45°C,Red color will show automatically4) When water temperature is above 46°C,Red color will flash immediately5) This item will change its color by detecting water temperature