We are new to this electric and plugging in thing, I have looked up camp grounds and what I see alot is 30 amp or 50 amp. I dont understand? Does that have something to do with "HOW" many amps we will need? or how many amps your pup needs, or does it have to do with how much you need in a day or hour or how much the pup will pull in amps? And on that note, how do you know which you will need, 30 amp or 50 amp? I feel like this might be a stupid question but i have no idea what it means?