Quoted from TheLaw:Can lights are pretty standard between joists.
Not too expensive & you can do them yourself (depending on your familiarity with electricity).
I have used can lights extensively over the years, but I have found the new led "canless" lights even easier to use, though they are are designed for a drywall ceiling. However, you can do what they did here in the painted black ceiling, making little panels attached to the ceiling to mount the light.
Another light I have used where I did not have room for a can in the tight surface mounted lighted mounted directly to the electrical box which would be rigid metal conduit with metal boxes (the other two pics - replace the hanging pendants with the flush mounted led).
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