Product Features: Case material: ABS LED emitting color: 7 colors Multiple Color(jump change) LED lighting color: Multiple colors (gradual cahnge) Product Feature under this Model: 1. When water flows down, the LED will light instantly and automatically. 2.It is bright enough so that there is no need of other light fixtures. 3.The LED color will change gradually and qutomatically. 4. The change of LED Color will not be subject to the temperature of water.