Linghhang - led Black Spray Paint Single Hole Mixer Tap Kitchen Sink Basin Hot and Cold Water Faucet Can Be Rotated 8001-A6 Black

No electricity, batteries or external power supply is needed, just turn on the water and the light will light up! LED Faucet Temperature Sensitive Discoloration: Including green, blue, red 3 colors, as decoration and water temperature reminder: When the water temperature is lower than 31°C, it will show green When the water temperature is between 32°C and 43°C, it will show blue When the water temperature is between 44°C and 50°C, it will show red When the water temperature exceeds 51°C, be careful not to be scalded, flashing red reminder!