Lights
panel
Lighting
Units drop-down
Generic
Lighing Units.
No lighting units are used and standard (generic) lighting is enabled.
Lights
panel
Create
Light drop-down
Distant.
You can continue to specify properties by entering options, or you can exit and set properties interactively. When you use the interactive method, you can see the results of your changes as you work.
To change the properties of a distant light. Enter lightlist at the command prompt. In the Lights in Model window, double click on the distant light name from the light list and use the Lighting Properties palette to change its color and other properties.
Toolbar: Lights