Here is a white plastic cube lamp with a yellow base and a large yellow dot on all four sides. A hole is cut into the top to release light and heat from the bulb. There are no manufacturer markings on the lamp. The lamp is the same model as the orange one I posted about on March 21, 2012. If you know anything about these lamps, please post in the comments below!
eBay item 251777317618 ended in January, 2015 (United States). The lamp sold for $39.99 plus shipping.