Specifying lighting dimensions
- From the model, select the desired family.
- From the Properties palette, click Edit Type.
![](https://files.helpdocs.io/05s9b4gl38/articles/9ndashvs4q/1559742019985/lighitng-edit-type-recessed-troffer.png)
- From the Type Properties window, in the Type Parameters grid, enter values in the Lighting_Length, Lighting_Width, and/or Lighting_Depth, and/or field(s) located in the Dimensions section.
![](https://files.helpdocs.io/05s9b4gl38/articles/9ndashvs4q/1559742031420/edit-type-length-depth-width.png)
The Lighting_Length may appear as an instance parameter for some families.
Some types may have additional dimension parameters.