Modern dimmers are compact and will fit into a standard wall outlet box in place of an existing switch. No rewiring is needed. Many people install dimmers for ”mood control”–lower… ...

When wiring a lamp socket, the brass screw is for the hot wire. The silver or black ... The first is to replace the existing socket with one equipped with a dimmer switch.

Well, it's a dimmer for "nearly all incandescent lamp configurations (up to 300W max) and many halogen systems as well." Smooth rheostat lighting for any lamp, very handy though probably not worth ...

A circular brass dimmer switch located on the side of the base is used to adjust the levels of light emitted from the LED bulb, diffused through a frosted-glass shade.

Wemo still offers a smart dimmer switch that can be controlled by Amazon's Alexa, Google's Assistant, and HomeKit. That Wi-Fi-based switch won't work with future Matter systems.