The parameters that you can define for a lighting fixture and its light source vary, depending on the light source definition settings that you specify. (See Defining the Geometry of a Light Source.) 
Note: In addition to defining these parameters for a lighting fixture family in the Family Editor, you can also change many of them for an instance or type of lighting fixture in a project. See 
Changing a Lighting Fixture in a Building Model. 
 
To define parameters for a lighting fixture and its light source
- Create a lighting fixture family, or open a lighting fixture family for editing. 
 
- Click Create tab
Properties panel
 (Family Types).  
- In the Family Types dialog, for Name, select the family type to modify. 
You can define different parameter values for different family types. See Creating Family Types. 
  
- Define parameters as desired. 
 
- Click Apply. 
 
- (Optional) Repeat this process for other family types defined for the lighting fixture family: For Name, select another family type. Define its parameters. Click Apply. 
 
- Click OK. 
 
- Save changes to the lighting fixture family.