Is possible to make a emissive material that doesn't iluminate

Hi, is possible to make a emissive material that doesn’t iluminate the environment?
I only need a emissive object, but don’t want its light.

It was easy to make in older Unreal versions, but Lumen always illuminates nearby areas

Not currently because of screen traces (answered in the livestream at 1:55:05). I would think it would be as easy as just returning black, but that may either not be possible or not look good (especially with the sci-fi corridor example they gave).