The Leviton D215S is a popular smart dimmer switch known for its compatibility with 3-way circuits, allowing you to control a light fixture from two different locations. Successfully installing this dimmer in a 3-way configuration hinges on understanding and correctly interpreting the “leviton d215s 3-way wiring diagram.” This article provides a comprehensive overview of why this diagram is crucial, how to understand it, and tips for a safe and successful installation.