Provides options for controlling the position, effects, and attenuation of light sources. The dialog box provides the Information, Position, and Effects tabs for each type of light source (Point, Distant, and Spot Light). The Attenuation tab is not applicable for the Distant light source, so the tab is not displayed for this light source..
You cannot change the type of light after placement. To change a point light to a spot light, for example, you must delete the point light, and then place a new spot light.