ELEGRP Toggle Dimmer Switch for Dimmable LED, CFL and Incandescent Light Lamp Bulbs, Single Pole or 3-Way, Full Control with Preset, Rocker Paddle, Wall Plate Included, UL Listed, 2 Pack, Glossy Black:
Lutron Lumea Single-pole/3-way LED Slide Light Dimmer Switch, White in the Light Dimmers department at Lowes.com
How to Install a Single-Pole Dimmer Light Switch
How to Install a Dimmer Switch in a 3-way Application | Leviton - YouTube