From a troubleshooting standpoint try flip flopping the bulbs. If the flicker movers to the other side you know it's the bulb, otherwise most likely a wiring issue.
Also, when handling these bulbs, DO NOT get finger prints on them. That will decrease bulb life dramatically. If you do accidently touch it, use rubbing alcohol to clean.
Lastly, if you need to replace, replace in pairs and use the OEM style bulb. No need to pay high dollar for some exotic type. Consumer Reports did a test and found little to no difference between bulbs.
GL
Also, when handling these bulbs, DO NOT get finger prints on them. That will decrease bulb life dramatically. If you do accidently touch it, use rubbing alcohol to clean.
Lastly, if you need to replace, replace in pairs and use the OEM style bulb. No need to pay high dollar for some exotic type. Consumer Reports did a test and found little to no difference between bulbs.
GL
