Wiring a Lutron Diva Dimmer for Single Pole Applications: A Comprehensive Guide
Are you looking to upgrade your home's lighting with Lutron's Diva dimmer? This versatile dimmer is perfect for single pole applications, offering smooth and reliable dimming for incandescent, halogen, and LED bulbs. In this guide, we'll walk you through the process of wiring a Lutron Diva dimmer step by step, ensuring a safe and effective installation.
Understanding Your Diva Dimmer
Before we dive into the wiring process, let's familiarize ourselves with the Lutron Diva dimmer. The Diva is a single pole dimmer, which means it controls one light source from a single location. It's designed to replace standard wall switches and offers a range of features, including a sleek design, smooth dimming, and compatibility with a wide range of bulbs.
Tools You'll Need
- Lutron Diva dimmer
- Wire stripper
- Needle-nose pliers
- Screwdriver (flathead or Phillips, depending on your electrical box)
- Wire connectors (wire nuts)
- Electrical tape
- Non-contact voltage tester
Preparation: Safety First
Before you begin, ensure the power to the circuit you'll be working on is turned off at the main electrical panel. Use a non-contact voltage tester to confirm that the power is off. Always prioritize safety when working with electricity.

Removing the Existing Switch
Start by removing the existing switch. Turn off the power, remove the switch plate, and unscrew the switch from the electrical box. Gently pull the switch out, and you should see two or three wires connected to it. These wires will be connected to the Lutron Diva dimmer.
Wiring the Lutron Diva Dimmer
The Lutron Diva dimmer has three terminals: Line, Load, and Ground. Here's how to connect the wires:
| Lutron Diva Dimmer Terminal | Wire Color | Wire Function |
|---|---|---|
| Line | Black or Red | Power supply wire (hot) |
| Load | Black or Red | Wire connected to the light fixture |
| Ground | Green or Bare | Ground wire (safety ground) |
Step-by-Step Wiring
- Strip about 3/4" of insulation from the ends of the wires.
- Connect the ground wire (green or bare) to the ground terminal on the Diva dimmer. Secure it with a wire connector.
- Connect the power supply wire (black or red) to the line terminal on the Diva dimmer. Secure it with a wire connector.
- Connect the wire from the light fixture to the load terminal on the Diva dimmer. Secure it with a wire connector.
- Wrap all connections with electrical tape for added security.
Installing the Lutron Diva Dimmer
Once the wiring is complete, gently push the Diva dimmer into the electrical box, ensuring the faceplate is flush with the wall. Secure the dimmer with the provided screws, then replace the switch plate.

Testing the Lutron Diva Dimmer
Turn the power back on at the main electrical panel. Test the Diva dimmer by toggling the switch and adjusting the dimmer knob. The light should turn on and off as expected, and you should be able to adjust the brightness smoothly.
Congratulations! You've successfully wired and installed a Lutron Diva dimmer for a single pole application. Enjoy the convenience and ambiance of smooth, reliable dimming in your home.