The height can be adjusted to meet your different preferences and needs The tri-colour (dimmable) variant has three adjustable colour temperatures, which are controlled by a household ordinary switch. The dimming is completed by the number of times the switch is toggled. When the customer toggles the switch, the first time is a cold white light, the second time is a warm white light, the third time is natural light, and the fourth time is to turn off the light. There is no remote control or connection to mobile phones or APP functions. The driving voltage range of this fixture is 165-265V. Blue Elephant Colour Temperature: Cool White (not dimmable)