[interface size] using 22mm*1 (fine teeth six in charge) internal thread interface. This model can be installed directly on the external thread faucet.
[LED quantity] 1PCS

Temperature control 3 color: change with the temperature change, cold water, warm water, hot water show different colors

When water is below or equal to 31 degrees, it is free to change to green.

When the water temperature is 32--43 degrees, it is blue.

When the water temperature is 44-50 degrees, it shows red.

51 degrees above the red light flashing, remind you to burn carefully!