A couple of screenshots showing the "Pixel" light system lighting up a runway with hundreds of lights. This is a modification of the "Sprite Light" system I had employed on Stealth Fighter DEX which was an asset from the Unity Store.
Instead, this system utilises "point" meshes which, I think, is a little easier to manage seeing as you can have a light mesh for each object and turn them on/off as necessary. Basically there is zero impact even if you have thousands of these little lights in view.
