The answer to 'do I need dimmer switch' is that a dimmer switch can be a great addition to your home's electrical system, allowing you to control the brightness of your lights. Dimmer switches are useful in living rooms, dining rooms, bedrooms, and other areas where you want to create the right ambiance and adjust the lighting to your preferences.
Dimmer switches work by reducing the amount of electrical current flowing to the light fixture, which in turn reduces the brightness of the bulb. This can save energy, extend the life of your bulbs, and give you more control over the lighting in a room. Dimmer switches are compatible with many types of light bulbs, including incandescent, LED, and halogen.