First of all, mine isn't four speeds at all; it's three and the numbers/speeds are backwards.  It's hanging from a cathedral ceiling which I rented scaffolding to get to so am I taking it down to return it by mail and get another when the scaffolding rents for the day?  No.  It's wired correctly but definitely has only 3 speeds, the no. 4 at the opposite end from OFF being low, 3 medium and 2 high.  1 is nothing, another off.  Otherwise, it's nice looking and I like it. I have a 36" extension on it.