I purchased a 200w 12v panel and it arrived with some external damage (box looked fine). The RTV application is rather subpar as well. My biggest concern is the is a defect in one of the cells where the wires are clearly broken. The panel seems to work OK. I have contacted the manufacturer and they have told me that the defect will not effect panel operation or safety and offered a $30 discount for the damage or I can exchange it but I'm guessing this would be my cost. Can anyone give me any guidance on the defect? What do you think of the offer? I have 2 other panels of the same model and was planning on buying more. I asked for 1/2 off a new panel of the same model but they declined.