Here’s a fun video by [Ashish Derhgawen], discussing the photoelectric effect of neon lamps with some simple demonstrations. Orange light makes it light! [Ashish] demonstrates the well-known ...

For this piece, it's a red-orange color. This next step is vital to creating a faux glow around the sign. He calls this "dusting," and it creates the illusion of the glow that real neon light ...