> An AC motor has basically nothing inside that can fail

Let me know how the non-replaceable sealed bearing packs in these AC or DC fans fare after 10,000 hours.

In a proper/high-end DC fan, the bearings are failing before any motors or LEDs.

Regardless, in a Big Ass Fans Haiku, the downlight is a completely separate/replaceable module - and it isn't going to fail before the bearings or motor.

Edison screw LED bulbs are the inferior design by every objective measure.

> Let me know how the non-replaceable sealed bearing packs in these AC or DC fans fare after 10,000 hours.

...your AC-powered ceiling fans are failing (or even "just" substantially degrading) after a little under fourteen months? What garbage are you buying?