Possibly not compatible with all track systems. I installed these on two curvy track fixtures of five bulbs each. In both cases, I replaced each halogen with a new LED bulb one at a time, testing after each by turning the track on. The first track was fine until bulb number three, when the whole track flickered once and quit. The second track died after bulb four was replaced. I suspect some sort of safety feature that is preventing the tracks from operating without enough total draw. Or they may have killed the power supplies altogether.Now I’m worried that the tracks won’t work even if I switch back to the halogen bulbs.Be careful.
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