In this article, we’ll show you how to replace the bulb, and if that fails, we’ll show you how to diagnose a bad socket and probe the wiring with a simple 12-volt automotive test light.

However, a 3-way light will only produce one level of illumination in a standard socket, as it's not built with the separate connections required to trigger three levels of light. On top of that ...

It is, however, important to note that a dimmable light bulb will not maintain its dimming function when used in a non-dimmable socket. Moreover, the dimmable bulb will likely only be able to ...