The square-shaped Hue bridge supports Siri voice control together with Apple HomeKit. You can ask Siri to turn on, turn off or dim your lights to your preferred level. You can also turn your lights to any color or recall your favorite Hue scenes without the need to touch a button. To set a specific color temperature you will need to create a scene with that color temperature and export it to Homekit. Via third party apps you can even link your lights to other Apple HomeKit enabled accessories.