Add Light To A Selected Object is a Blender add-on from studioromanrec that adds lighting targeted to specific objects in a scene. By selecting and assigning one or several objects through the add-on, you set up light that acts only on those objects and leaves everything else unaffected.
The add-on works only with Cycles. It is available for Blender 4.0, 4.1, 4.2 and 4.3, and is listed as Blender Extension compatible. Distributed under the GPL license, it ships as an add-on with documentation included. It also appears in the Studioromanrec Blender Add-Ons Bundle alongside other tools from the same creator.
A demo video is available for those who want to see more before installing. For current licensing and download details, check the developer's page.