Converts lights created in previous drawing file formats to the current format.

The lights in the drawing that were originally created in a previous drawing file format are updated to the current drawing file format. Drawing file format changes occur infrequently in AutoCAD-based products. For example, format changes occurred in AutoCAD 2000, AutoCAD 2004, and AutoCAD 2007.

Note: The conversion may not be correct in all cases. You may need to adjust intensity, for example.