Good morning to all,
I have one of my two lights, after about 15-20 minutes of turning on, will start to blink, the other is fine. The blinking continues to get worse, and then they are both out of sync. From your experience, what might the issue be. I find it hard to believe that it's a wiring issue, because they are two years old, worked fine from the beginning, and work fine for a short time of being turned on each time. So to me that leaves one obvious problem, the cartridge.
Your thoughts please.