Beneath the fluorescent tube outline of the roof, there are doors but no walls.

The next major technological innovation in neon lighting and signs was the development of fluorescent tube coatings.

The marquee was also back-lit using fluorescent tube lighting.

For a given fluorescent tube, a high-frequency electronic ballast gives about a 10% efficacy improvement over an inductive ballast.

The overall appearance of a light pipe has been compared to that of a giant-sized fluorescent tube.