Ultimately, you are responsible for the service you get from companies these days if you decide to do business with a American company remotely. They are in Sulphur Springs, TX. I am in Durant, OK. If you think I'm going to order anything from them again after reading the customer reviews about their customer service, you'll find yourself mistaken. I do business in-person for a reason and, having heard what this company has become, I'll be very cautious when dealing with them. If I can't get electronics bench-tested before carrying them home, I won't buy them. As for solar panels, I can test them in the parking lot.