Why do my new HQI bulbs trip my GFCI (Somewhat urgent)

[cwatkins]

Originally Posted by The Grizz

This is really weird, I have 4 of these bulbs running now & know of a lot of others running them too without issues.

What type of socket do you have in the fixture? Is it the push in type or the old style end prong type?

If it is the push in type do the ends of the bulb look parallel to each other? It does sound like a bulb / socket issue. Have you contacted the supplier to see if he might have an idea what is causing the issue?

The fixture used to be dual 150W and I replaced the sockets/wiring/ballast with 250W, but it's been running for well over a year with the Pheonix bulbs and no issues. Sockets are the new push in kind. So I just push both ends of the bulb in and it locks in by pressure I believe.

I can email the ebay seller. I think it's the same one everyone here uses from Ontario.