1.As the built-in device generating electricity without the battery and any other power，connets to water LED will emit the light.
2.When water flows down, the LED will light instantly and automatically.Brightness is such enough even no other lighting fixtures need
3.The LED color will change gradually and automatically
  Multiple color (jump change): white, blue, red, green, and purple for your choose
4.Water pressure activates the light source
5.Light goes off when water source is turned off