
This replacement for the QT80 series will do the trick. I ordered it and received it within days and the contractor doing some minor work on my house was able to lower the vent cover, unplug the old unit and plug in the new one in less than half an hour. Of course, before ordering, we carefully wrote down the model number on the old device. I also strongly recommend buying the whole unit with the fan, not just the motor which is cheaper. Old fans get so gross you just want a new one.

EMylo Smart Wireless RF Motor Controller Switch Relay Module DC 12V 5V-24V 433Mhz Remote Control For Rolling Door/Electric Curtains/Locks/Water Pump, Forward & Reverse 2Pcs
3 Review

Advanced DC Motor Pump Speed Control - ALEDECO'S 6V-90V 15A - 1 Pack Upgrade
3 Review

Taidacent Slip Ring Power Connector Large Current Rotating Wire Connector 2/4/6/8/12 Way Dining Table Slip Ring Contacts (12 Way 10A)
4 Review

Powerful And Efficient AZSSMUK 12V DC Worm Geared Motor With High Torque And 6Mm Female Shaft
4 Review

Robertson Worldwide ISL432T8HEMV AH 3P20160 120-277V 50-60Hz High Power Factor 4 F32T8 Linear Lamp Fluorescent eBallast
6 Review

π‘ Electronic FL Ballast ICN-4P32-N (Formerly ICN-4P32-SC) for 3-4 F32T8 F40T8 F17T8 Lamps, 120V/277V Compatibility
5 Review

Wireless Electronic Ballast Interface Certified
8 Review

π‘ High-Quality Advance ICN-4P32-SC Electronic Fluorescent Ballast: Ideal for 4 Lamps, 32W T8, 120/277V
3 Review