

Is there an overhead light or is the light on the wall? There are vent fan/light combos that will use the existing overhead light wires. You will have to run a vent tube to the outside with a proper vent exit. The exit will have a flappy door thing that will open outward only.
Edit: changed “bent fan” to vent fan.
Also! Most applications will have a box that is installed in the ceiling for the vent tube to attach to and the fan sits in.
Look on the back of the stems. That’s usually where you’ll find manufacturer’s stamps. At the same time, they kind of look like tarnished silver. Try polishing them!