My experience with a Lance camper is that the wiring is abysmal. Details in assembly are not quality controlled; like tightening fasteners. Otherwise, it's been the best camper I've ever owned. Mechanically it is as good as I could ever expect.
I rewired everything I could get to with correct gauge wire with correct connections and in a harness that routes wires cleanly. Also labeled everything with each end marked as to what the other end is connected to, so I know where to look to find the other end.