LED bulbs have drivers (usually AC to constant current converter) integrated so they should stabilize power themselves. My guess would be that there might be high voltage spikes that managed to burn a driver. Another possibility, that just came to my mind -- LED&#x27;s, especially high power ones like Creed, become <i>very</i> hot, maybe your bulb slot is very tight and isolated and there&#x27;s not enough room to dissipate the excess heat?