Phoebe LED Spectrum Smart Room Control Switch This touch-sensitive Smart Room Control Switch (compatible with all Phoebe LED Spectrum Downlights) hands you full room control of all the Spectrum downlight features. The Smart Switch allows changing of all the lights in a group at once, with the ability to control colour temperatures, brightness & even tune the outer halo to the desired colour. Please note that the Phoebe LED Spectrum downlight app (available on Google Play for Android devices or the App Store for Apple devices) is required for initial setup. Features Independent main light & halo control Full Colour & brightness control Touch sensitive control Wireless Bluetooth control Fits in standard 35mm back box