I have a 120W suitcase panel like the one you are looking at. I have LED lights and a 12V television. No inverter. I also do most my camping in the desert so sun availability is usually very good. It works very well to replace any charge I may have used overnight (usually minimal) and keeps the batteries at full charge during the daytime even using a stereo with an amplifier or the television. Obviously, I have the smaller draws like the refrigerator, phone charging and the like but I spent most my life tent camping so use of electricity almost seems like an extravagance. The location of the controller and length of the cable will have negligible affect (IMO). Availability of sunlight would be a greater concern in the northwest.