I wanted the forums opinion of if you guys believe I made the wrong decision or not. I sold a light to a member for a piece of coral and the transaction went flawlessly. The buyer witnessed the lights function properly when delivered. Shortly after delivery the buyer questions the seller on how to program the lights and an issue he was facing. The issue is that on ATI dimmable T5's when the power is cut abruptly the screen will remain blue until you take it out of safe mode. This issue was resolved. Shortly after the buyer contacts me again with a fan issue. I instruct him on how the replace the fans if any go bad but that they were functional when he received the unit. After 2 months the buyer contacts me saying he wants the coral back and that I need to come pick up the lights as he purchased different lights. At first I agreed I would exchanged the coral back for the lights but after speaking with my wife she thought this was insane as I have no idea what has happened to the lights since I delivered them back in late July. What is your option?