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. Traditional in appearance the Leviton Toggle Slide Dimmer offers smooth slide-action and full-range dimming for dimmable LED, incandescent, and halogen bulbs. A separate On/Off toggle preserves your preferred light level when the switch is turned off and back on. 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.