We found a few of these units while cleaning the stockroom in our restaurant supply store. The units themselves are unmarked, but each contains a ballast and two Westinghouse Odorout bulbs. It appears that they were sold in the 1950s as a deodorizer that worked by producing Ozone via UV light. I'm keeping one for myself and listing the rest on ebay, but i thought they were too cool not to share.
The bulbs themselves look like standard incandescents until you power them up. When powered up the gas inside the bulb radiates an intense pale blue light. The picture doesn't quite do it justice. I've got to stop playing with these now.. I'm guessing my current obsession with these bulbs is not doing my eyes any favors.