Blue,Green,Red,
(According to the water temperature changing)
1.No battery needed , just for water power.
2.Regular Working hydraulic pressure:0.1~0.6MPA.
3.With the water temperature can change color. below 29 degree -green light; 30-39 degree - blue light; more than 40 degree - red light.
4.Our products have excellent function of water saving.In the connection of the top,setting a water saving and filter systems.