I just ordered a Heng's ceiling vortex exhaust fan. It is going in an unpowered vent in place of the screen that is there now. There is a ceiling light within inches of the hatch opening. I don't know much about wiring, but will I be able to pigtail the wires from the fan going to the ceiling light wires?
Incindentally I disassembled the vent assembly and screen from the inside in preparation of my fan. Now I get to see how sloppily the camper assemblers were. The screws going in at odd angles, the inside frame of the vent was cracked. Makes me wonder what the rest of the unseen workmanship is like. Or maybe I don't really wanna know.