This photo is of a Neon Glow Light. They were manufactured in the US from the 1930s through the 70s, and are still marketed in other countries. Flowers were popular subjects, as were cartoon figures.

Here's a link to a collector:

http://www.bulbcollector.com/faq.html]

Funny how people get satisfaction from collecting matchbooks, owl figurines, wind-up toys, vintage tools, Faberge eggs, old postcards. Look at this one:

http://luxfanatic.blogspot.com/?expref=next-blog

Then some of us are just magpies who pick up feathers, pretty rocks, and shiny things, who can't resist a marble, or a bright dime. Of what use is that?