Product Features: iW® Scene Controller gives you instantaneous, pushbutton control of the entire range of Philips IntelliWhite® fixtures, our family of dimmable, temperature controllable white lights. This elegant, wall-mounted controller lets you vary fixture brightness and color temperature to select the perfect quality and intensity of light. With iW Scene Controller, you can control up to four zones (groups of lights) simultaneously. You can save sets of brightness and color temperature settings as scenes, then recall them at the touch of a button.