Many parameters for lighting fixtures and their light sources are defined by the lighting fixture family.
Some of these parameters can be changed for individual instances in the building model. Other parameters must be changed in the family type or family.
To change a lighting fixture in a building model
The instance parameters that are available vary depending on the lighting fixture family and how its family parameters are defined.
The type parameters that are available vary depending on the lighting fixture family and how its family parameters are defined.