I found these miniature architecture lamps at CVS - "House to Home Smart Book Light". I dissuaded mini2b from buying a similar one at the Good Sam Showcase of Miniatures, only for her to find out these flew off the shelves. She went to 3 CVS stores and they were sold out, but a manager said they might sell them again during the holidays since they were so popular. So sorry mini2b!!!
They come in a variety of colors. They are about 4" tall. The yellow lamp is in a 1:12 scale setting. The green is in a 1:24 scale room. They are a little too small for 1:12 and too big for 1:24, but they only cost 2 for $5, so I'm trying to find a way to make them work.
The neck and the middle joint flex but the base does not. Pictured is the range of motion you can get out of them. If you happen to see these for sale at CVS again, please let me know. :)