Replacing a standard wall switch with a dimmer is a simple upgrade that delivers big impact at minimal cost. Dimmer switches make it easy to customize light levels for any room, any occasion, and any mood - whether you're entertaining, reading, or settling in for movie night, the right lighting sets the tone. The Leviton Trimatron Rotary Dimmer offers full-range dimming for dimmable LED, incandescent, and halogen bulbs. Traditional in appearance, it turns lights On and Off with a simple push of the knob. Once the lights are on, you can adjust brightness to your preferred level. Compatible with single pole (one location) or 3-way (two location) applications when paired with a 3-way switch. Ideal for great rooms with multiple entrances or staircases with switches at both ends.