The answer to 'difference between dimmer switch' is that a dimmer switch is a type of light switch that allows you to adjust the brightness of the lights, while a standard light switch simply turns the lights on and off. Dimmer switches offer several benefits, including the ability to set the perfect lighting level for a room, save energy by reducing light output, and extend the lifespan of light bulbs.
Dimmer switches are typically more expensive than standard light switches, but the added functionality and energy savings can make them a worthwhile investment, especially in rooms where you want to be able to control the lighting levels, such as living rooms, dining rooms, and bedrooms. Standard light switches are a more basic and affordable option, but they don't provide the same level of control and customization.