Funny thing is they start fine, after about 15 minutes the light output on the passenger si starts to flunctutate, making me think its caused by bulb heat/failure!
Its not really a flicker as its not turning on/off, just flunctuating. I will purchase a second pair so I can replace them anytime it fails.
I also have a relay harness so I don;t think its the power, and I have never had a failed start, another sign that it may be the bulb!