About how long does a ballast last? Do they slowly stop driving the bulb over time? I've got an Icecap ballast that is a replacement for the one I initially purchased about 6 1/2 years ago. When that one died 3 years ago, Icecap sent me a replacement with a reconditioned ballast. It is now 3 1/2 years old. To me, it seems like the light is not as bright as it was years ago. (bulb is only about 4-5 months old)
Am I just imagning this? Do I need to look into buying a new ballast? BTW, it's driving a PFO mini pendant 250W MH.