This .NET class wraps the AcGiStandardLightTraits ObjectARX class. 

This intermediate class represents a standard, or non-photometric light. It defines properties common to all such lights. A light passing its properties to this class should not rely on any default values.

Autodesk.AutoCAD.GraphicsInterface.SubEntityTraits
    Autodesk.AutoCAD.GraphicsInterface.DrawableTraits
        Autodesk.AutoCAD.GraphicsInterface.NonEntityTraits
            Autodesk.AutoCAD.GraphicsInterface.LightTraits
                Autodesk.AutoCAD.GraphicsInterface.StandardLightTraits
                    Autodesk.AutoCAD.GraphicsInterface.DistantLightTraits
                    Autodesk.AutoCAD.GraphicsInterface.PointLightTraits
                    Autodesk.AutoCAD.GraphicsInterface.SpotLightTraits

Public abstract Class StandardLightTraits
Inherits LightTraits

public abstract class StandardLightTraits : LightTraits;