Steps:

Click on the "Placelight" plug-in,

Set the input values,

Click and select the corresponding linked file in the project (do not select it when there are no linked files).

and simply hit "Start Placement", and the program will automatically calculate the number of lighting fixtures arranged in the room based on the selected illuminance and lighting type.

Then, the lighting fixtures will be arranged on the ceiling or floor of the room.

Find the detailed steps with images here: %PROGRAMDATA%\Autodesk\ApplicationPlugins\PlaceLight.bundle\Contents\20xx\PlaceLight\PlaceLight.html  

When you download this app/plug-in from the Autodesk App Store, you can run the installer, simply double-click the downloaded installer to install the app/plugin.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 10/11) and uninstall as you would any other application from your system