[todwic]

There are 3 prongs, I assume 2 hots and a ground, but I don't know that for sure. I think the newer type have two prongs. The element looked like the kind that defrosts the hatch glass, only much thicker. When I recieved my mirror, the glass that contained the heater element was cracked in a few places. I wonder if a crack could not widen and sever the element.