I installed 10 LEDs in my Teacher's Pet playfield to see what they would look like. Warm white to replace 44/47 bulbs. THey seem fine, but two of them blew out after a few cycles of play. They turn on after a rollover switch is hit to turn two pops from 1 point to 10. Both LEDs died at the same time. I replaced with 47s and all's well. Did I just get cheapo LEDs, or does the snap of current to the pops tear up the LED?