The Color property determines the color of the directional light from the light source. The color of an object in a scene is determine by the color of the object and the light source. The Position property specifies the location of the light source in axes data units. In the case of an light source at infinity, Position specifies the direction to the light source.
Lights affect surface and patch objects that are in the same axes as the light.
These objects have a number of properties that alter the way they look when illuminated by lights.