Just some additional thoughts here. Bil uses these halos in the foglights as well as the shrouds in the headlights. My problems have all been in the shrouds and not the foglights. I have not had a failure with a "Bil" installed halo yet. My failure occurred from another retro guy here in Houston but I purchased the halos from TRS.
Perhaps the heat buildup being behind the shrouds in the headlights is causing premature failure. I never ran my LED foglights with the led rings as much as I did the headlights only the rings are lit with the parking lights on. Heat could be the culprit.