No-Neutral Decora Smart Dimmer Switch - Retrofit Smart Dimming

Our review of the No-Neutral Decora Smart Dimmer Switch finds it a practical retrofit solution for homeowners who want smart lighting without reworking old wiring. The standout reason to buy is clear: it removes the common barrier of needing a neutral in the wallbox, letting owners add app and voice control where neutral wiring is absent. The dimmer requires the MLWSB Decora Smart Wi-Fi Bridge (sold separately) to connect to the My Leviton app and voice assistants, but once paired it provides reliable remote control and full range dimming for a variety of bulb types.

Key Features

• No-neutral required: Installs in older homes where the wallbox lacks a neutral, so smart dimming can be added without running new wiring.
• Bridge required for smart features: Uses the MLWSB Wi-Fi Bridge to connect to the My Leviton app and enable voice control with Hey Google, Alexa or Apple Siri.
• Full range dimming: Offers smooth dimming with app-configurable preset light levels, fade rates and bulb-type settings to match LEDs, CFLs, incandescent and MLV loads.
• Wire-free 3-way support: Adds multi-location control by pairing optional Anywhere Dimmer or Switch Companions without additional wiring.
• Simple wiring: Requires only line, load and ground connections, keeping installation straightforward for typical retrofit jobs.

Who It's For

The No-Neutral Decora Smart Dimmer is best for homeowners renovating older houses, renters with permission to replace switches, or anyone who needs smart dimming in rooms that lack neutral wiring in the wallbox. It is especially useful when you want app scheduling, remote control and voice commands but cannot or prefer not to run a neutral to the switch.

It is less suited to buyers who expect a fully standalone Wi-Fi dimmer out of the box, since the MLWSB bridge is required for cloud connectivity and voice assistant integration. Also, those who need multi-switch wiring with hardwired 3-way remotes should consider wired companion options rather than the wire-free companions.

Pros & Cons

Pros

• Enables smart lighting in homes without neutral wiring, removing a common retrofit obstacle.
• Compatible with major voice assistants via the required bridge for hands-free control.
• Supports a wide range of bulb types and offers customizable dimming behavior in the My Leviton app.
• Optional wire-free multi-location companions let you add controls without new wiring.

Cons

• Requires the MLWSB Wi-Fi Bridge (sold separately) for app and voice features, adding cost and setup steps.
• Not a self-contained Wi-Fi device; dependent on the bridge for cloud connectivity and remote access.

Specifications

Product type	No-neutral smart dimmer switch
Model	DN6HD-1RW
Wiring required	Line, load and ground (no neutral)
Bridge requirement	Requires MLWSB Decora Smart Wi-Fi Bridge (sold separately)
Compatibility	My Leviton app; voice control via Hey Google, Alexa, Apple Siri (with bridge)
Bulb support	LED, CFL, Incandescent, MLV; app options for non-dimmable ON/OFF
Multi-location	Supports wire-free 3-way with optional Anywhere Companion devices

Our Verdict

The No-Neutral Decora Smart Dimmer is a practical, cost-effective retrofit option for adding smart dimming to older homes that lack neutral wiring. With the MLWSB bridge it delivers app control, voice support and flexible dimming across many bulb types, making it a solid choice for homeowners who want modern lighting control without rewiring.

Frequently Asked Questions

Does this dimmer need a neutral wire?
No, it is designed to work without a neutral and only requires line, load and ground connections.

Can it be controlled remotely?
Yes, when paired with the MLWSB Decora Smart Wi-Fi Bridge the switch connects to the My Leviton app for remote control and scheduling.

Can you use it in a 3-way setup?
Yes, you can add wire-free multi-location control using optional Anywhere Dimmer or Switch Companion devices without extra wiring.