Hmm, well I hadn't thought of that.
Yes, I am at home, but I do have a separate building on my property with a separate meter from the house itself. In addition, when plugged in at home, the 30 amp plug I use is on it's own separate breaker.
I should clarify that the dimming and brightening I'm referring to, think along the lines of a strobe light, almost completely going off and then back to normal brightness, constantly back and forth.
I've never had this happen before, whether at an RV Park or at home plugged in, so this caused me to think that I'm developing a problem.
I appreciate your thoughts!