From experience, I know it works. The one thing that marks you as a true camper - Awning Lights. They clip to the front edge of the awning and plug into the outside outlet. Chances are you will need a short extension cord. You can hold them to the awning by cloths pins or clips just made for the purpose.
Most discount stores carry a variety of name brands.
RV refrigerators are notorious for temperature swings and going bad at the most inopportune time. A temperature alarm makes that job easier, sounding an audible alarm if the temperature inside the fridge gets to hot or even to cold. You can find them at many dealers and catalog outlets. The one pictured here is from BRVA . Lock in your position, take a hike, press a button and the unit tells you exactly how to get back to where you started.