Product feature:

1.No batteries,no wires needed.

2. When water flows down, the LED will light instantly and automatically;

A. When water temperature is <35 dgree, Blue color will show automatically;

B. When water temperature is between 35 dgree-43 dgree, Warm-white color

will show automatically;

C. When water temperature is between 43 dgree-50 dgree, Red color

will show automatically;

D. When water temperature is above 50 dgree, Red color will flash immediately.

3. Full Spray