The answer to 'types of dimmer switch' is that there are several main types of dimmer switches used in homes: manual dimmers, slide dimmers, rotary dimmers, and smart dimmers. Manual dimmers are the simplest, with a switch that physically moves up and down to control the light intensity. Slide dimmers have a slider that you move to adjust the brightness. Rotary dimmers have a knob that you turn to dim the lights. Smart dimmers connect to your home's wifi and can be controlled remotely with a smartphone app.
Each type of dimmer has its own advantages - manual dimmers are the most affordable, slide dimmers provide precise control, rotary dimmers are easy to use, and smart dimmers offer convenient remote control. The best type for your home depends on your specific needs and preferences.