im going to put a"Street Glow" underbody kit under my truck. i have heard thatthe regular flurecsant neons break easily. i am looking into and LED kit ... any input???

I would look into an LED kit.

I have worked with the flourescent neon bulbs for a company show display, and what a PITA. I replaced quite a few because while mounting them and running the display, and wrong move, and they would break.