The landing lights on the Mh are a good aid in parking it and hooking up, at night. Thinking of upgrading them to LEDs. The lights aree available at a good many truck stops as well as CW etc. They fit into a hole cut by mfg and held in with simple push in gasket and lip.
There has to be some stick ons or screw ons. I can se not reason not to installs some of the LED jobs on fifth Wheel etc. I'm not sure about switching using the existing plug between the Fifth Wheel/Trailer and the Tow vehicle but some one hers is undoubtedly.
the LEDs don't draw much? so I might put some on rear corners front corners and middle sides and even front skirt. Sometimes we don't use them because the brightness is enough to disturb close neighbors. We don't leave them on.
A couple of floods into the wiring on the rear corners, into thee swith might not hurt either.