I own a 2001 I30 and have been looking all over to find a new backlight CCFL bulb for my Instrument Panel.
After much searching, I found a site that apparently has stock right from the manufacturers in Japan.

I wanted to share with my fellow I30/I35 Owners here what I found.

https://www.amayama.com/en/part/nissan/248222y500

Obviously your mileage may vary, however I feel like it's legit.

Cheers!