Best Smart Switches with Hub Required: 15 Spec-Based Picks
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Choosing a smart switch with hub required gives your setup dedicated wireless communication and offloads traffic from your home Wi-Fi network. We compared 15 models based strictly on specifications published on their listings. The Lutron Caseta No-Neutral Smart Dimmer Switch takes the top spot because its no-neutral wiring requirement allows dimming installation without updating older junction boxes.
This guide highlights physical dimensions, wiring requirements, and wireless protocols across every option. It helps you decide which hub-connected switch fits your existing electrical boxes, wiring layout, and control needs.
Quick picks
The best fit for you
- You need dimming control without a neutral wire. Lutron Caseta No-Neutral Smart Dimmer Switch This switch operates with no neutral wire required when connected to a Lutron Smart Hub.
- You need outdoor smart control for exterior lighting. Lutron Caseta Outdoor Smart Plug with Remote Its IP66-rated design supports outdoor operating environments for exterior lighting control.
- You have multi-way switches on a Z-Wave network. Zooz 800 Series Smart On/Off Switch This model features a 3-way circuit configuration and integrates via Z-Wave wireless connectivity.
- You want switch automation without touching electrical wiring. THIRDREALITY Zigbee No-Wiring Smart Switch This battery-powered rocker switch mounts directly over existing switches and connects via Zigbee.
Our 15 picks
Lutron Caseta No-Neutral Smart Dimmer Switch
Best for: homes without neutral wiring needing dimmer controls
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Alexa, Apple Home, Google Assistant
- Wiring Requirement
- No Neutral Required
- Circuit Type
- 3-Way
- Switch Function
- Dimmer
- Maximum Load
- 150W LED, 600W Incandescent/Halogen
View on Amazon: Lutron Caseta No-Neutral Smart Dimmer Switch
The Lutron Caseta Smart Dimmer Switch provides push-button dimming for dimmable LED, halogen, and incandescent bulbs. It requires the Lutron Smart Hub for app scheduling and smart home integrations, including Apple Home, Amazon Alexa, and Google Assistant. Because it operates without a neutral wire, it suits you if your electrical boxes lack neutral conductors. You can also pair it with wireless Pico remotes to control multi-location switch setups.
Pros
- Operates without a neutral wire
- Controls dimmable LED, incandescent, and halogen bulbs
- Integrates with Apple Home, Alexa, Google Assistant, and Sonos via hub
- Supports multi-location setups via Pico wireless remotes
Cons
- Requires a separate Lutron Smart Hub for smart features
- Coordinating wall plate is sold separately
- Three-way switch installations require a wireless Pico remote
Good fit if
- You have switch boxes that lack a neutral wire.
- You plan to connect to a Lutron Smart Hub for automation and voice control.
- You need push-button dimming for compatible LED, halogen, or incandescent bulbs.
Skip if
- You want a smart switch that connects directly without an external hub.
- You prefer an included wall plate in the package.
Verdict: Lutron Caseta Smart Dimmer Switch delivers wide smart home platform compatibility and dimming capability without requiring a neutral wire. It serves as an adaptable choice when connected to a Lutron Smart Hub.
Lutron Caseta Diva Smart Dimmer Switch
Best for: rocker dimming within a Lutron Caseta setup
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Alexa, Apple Home, Google Assistant
- Wiring Requirement
- No Neutral Required
- Circuit Type
- 3-Way
- Switch Function
- Dimmer
- Maximum Load
- 150W LED, 600W Incandescent/Halogen
The Lutron Caseta Diva Smart Dimmer Switch gives you connected lighting control using a rocker switch, slider, and soft-glow light bar. It supports up to 150W dimmable LED or 600W incandescent and halogen loads, and it ships with a matching Claro wallplate. You need a separate Lutron Smart Hub for app schedules, scenes, and smart platform integration. It suits you if you want wall dimming with physical preset controls.
Pros
- Handles up to 150W dimmable LED or 600W incandescent/halogen loads
- Slider and soft-glow light bar with preset level control
- Includes matching Claro wallplate in the package
- Integrates with Alexa, Apple Home, Google Assistant, Ring, and Sonos via hub
Cons
- Requires Lutron Smart Hub for app, voice, and scheduling features
- Not rated for low-voltage track or landscape lighting
- Pico remote control is not included
Good fit if
- You already use or plan to set up a Lutron Smart Hub.
- You want a physical slider, soft-glow bar, and preset button on the wall.
- You are controlling standard dimmable LED, incandescent, or halogen lighting.
Skip if
- You need lighting control for low-voltage track or landscape fixtures.
- You want a standalone smart switch that operates without a hub.
Verdict: Lutron Caseta Diva Smart Dimmer Switch pairs familiar rocker and slider dimming with reliable Lutron Smart Hub connectivity. It delivers stable 150W LED dimming across major smart home ecosystems.
THIRDREALITY Zigbee Smart Plug
Best for: monitoring plug-in appliances on Zigbee hubs
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Home Assistant, SmartThings, Alexa
- Connectivity
- Zigbee 3.0
- Maximum Load
- 15A
- Dimensions
- 2.7 × 1.48 × 1.13 inches
This plug-in Zigbee 3.0 outlet handles up to 15 amps and doubles as a mesh repeater to extend your smart network. It measures 2.7 inches long by 1.48 inches wide, designed not to block your adjacent wall socket. You get real-time power monitoring and power restore settings with platforms like Home Assistant, Hubitat, and SmartThings. It suits you if you want plug-in appliance automation without replacing wall wiring.
Pros
- 15A rating supports standard plug-in home appliances
- Functions as a Zigbee mesh repeater to extend signal range
- Tracks real-time electrical power consumption on compatible hubs
- Compact 1.13-inch profile avoids blocking adjacent sockets
Cons
- Requires a separate compatible Zigbee hub to function
- Apple HomeKit integration requires the separate Smart Bridge MZ1
- Power monitoring is not supported across all Zigbee coordinators
Good fit if
- You use a Zigbee hub such as Home Assistant, Hubitat, or a compatible Echo
- You want real-time energy tracking for a plug-in appliance
- You want to expand your Zigbee mesh network without changing wall switches
Skip if
- You need a hardwired in-wall light switch or dimmer
- You use Apple HomeKit and do not want to purchase an additional bridge
- You do not own and do not plan to add a Zigbee hub
Verdict: THIRDREALITY Zigbee Smart Plug delivers 15A power control, energy tracking, and Zigbee mesh repeating in an outlet-friendly footprint. It gives you flexible appliance automation across various Zigbee platforms without touching existing electrical wiring.
Lutron Caseta Smart Switch for Lights and Fans
Best for: controlling standard lighting and exhaust fan loads
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Alexa, Apple HomeKit, Google Assistant
- Wiring Requirement
- Neutral Required
- Circuit Type
- 3-Way
- Switch Function
- On/Off Switch
- Maximum Load
- 600W Incand, 5A LED/CFL, 3.0A Fan
View on Amazon: Lutron Caseta Smart Switch for Lights and Fans
This Lutron Caseta in-wall switch controls lighting loads up to 5A for LED or 600W for incandescent bulbs, as well as general-purpose ceiling or exhaust fans up to 3.0A. It requires a neutral wire in your wallbox and pairs with a Lutron Caseta Smart Hub for app schedules, smart away modes, and voice assistant integration. You will appreciate its multi-load support if you want a reliable switch for mixed fan and lighting circuits.
Pros
- Controls up to 3.0A ceiling or exhaust fans
- Handles up to 5A LED/CFL or 600W incandescent/halogen loads
- Integrates with Apple HomeKit, Alexa, and Google Assistant via hub
- Supports Pico remotes for wire-free 3-way setups
Cons
- Requires a neutral wire inside the wallbox
- Requires a separate Lutron Caseta Smart Hub to operate smart features
- Pico remote and wallmount bracket sold separately for 3-way installations
Good fit if
- You have an available neutral wire inside your switch box.
- You need to switch either lighting fixtures or up to a 3.0A fan load.
- You already use or plan to set up a Lutron Caseta Smart Hub.
Skip if
- You lack a neutral wire in your existing wallbox.
- You want standalone Wi-Fi control without purchasing a dedicated hub.
Verdict: Lutron Caseta Smart Switch for Lights and Fans provides reliable on/off control for both lighting fixtures and 3.0A fan loads using an established hub ecosystem. It requires neutral wiring and a separate bridge, making it best suited for dedicated Caseta setups.
Lutron Caseta Claro Smart Switch
Best for: rocker-style lighting and fan load control
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Alexa, Apple Home, Google Assistant
- Wiring Requirement
- Neutral Required
- Circuit Type
- 3-Way
- Switch Function
- On/Off Switch
- Maximum Load
- 5A lighting, 3A fan
The Lutron Caseta Claro Smart Switch controls overhead lighting or ceiling fans through your Lutron Smart Hub. It supports loads up to 5A for lighting or 3A for fans, matching the look of traditional paddle switches. Because it requires a neutral wire and a dedicated hub, you should verify your switch box wiring before installation. It suits you if you need reliable rocker-style automation across major smart platforms.
Pros
- Controls up to 5A lighting or 3A fan loads
- Integrates with Apple Home, Alexa, Google Assistant, Ring, and Sonos
- Matches standard Claro paddle switch aesthetics
- Supports multi-location setups with Pico remotes
Cons
- Requires a neutral wire in the switch box
- Requires a Lutron Smart Hub for operation
- Coordinating wallplate is sold separately
Good fit if
- You have a neutral wire inside your switch wallbox.
- You want to control general lighting circuits or a 3A ceiling fan.
- You already use or plan to deploy a Lutron Smart Hub.
Skip if
- You lack a neutral wire in the installation location.
- You prefer a direct Wi-Fi switch that operates without an external hub.
Verdict: Lutron Caseta Claro Smart Switch delivers dependable hub-connected control for lights and fans with a familiar rocker profile. Its reliance on a neutral wire and separate hub makes checking your electrical box essential before buying.
Lutron Caseta Smart Switch for Lights and Fans
Best for: standard on/off lighting and ceiling fan control
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Apple Home, Alexa, Google Assistant
- Wiring Requirement
- Neutral Required
- Circuit Type
- Single Pole, 3-Way, Multi-Location
- Switch Function
- On/Off Switch
- Maximum Load
- 600W Light, 6A Fan
View on Amazon: Lutron Caseta Smart Switch for Lights and Fans
This in-wall switch provides on/off control for lighting loads up to 600W and ceiling fans up to 6A. You need a neutral wire in your wall box and a Lutron Smart Hub to enable app control, geofencing, and smart home integration with Apple Home, Alexa, or Google Assistant. It suits you if you want reliable on/off fan or light control integrated into an existing Caseta ecosystem.
Pros
- Supports lighting loads up to 600W and ceiling fans up to 6A
- Compatible with Apple Home, Amazon Alexa, and Google Assistant via hub
- Enables multi-location switching without new wiring when paired with Pico remotes
- Includes automated scheduling, geofencing, and random smart-away modes
Cons
- Requires a neutral wire connection inside the electrical box
- Lutron Smart Hub is required for smart features and sold separately
- Wall plate is not included in the package
Good fit if
- You have a neutral wire available in your switch box.
- You want on/off control for 6A ceiling fans or fixtures up to 600W.
- You already own or plan to install a Lutron Smart Hub.
Skip if
- You do not have a neutral wire in your junction box.
- You need dimming functionality or multi-speed fan regulation.
- You prefer a direct Wi-Fi or hub-free switch setup.
Verdict: Lutron Caseta Smart Switch for Lights and Fans delivers dependable on/off switching for fixtures and 6A ceiling fans when paired with a Lutron Smart Hub. It is an ideal addition if your junction box includes a neutral wire.
Lutron Caseta Outdoor Smart Plug with Remote
Best for: weatherproof outdoor lighting and pump control
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Alexa, Google Assistant, Apple Home
- Connectivity
- Clear Connect
- Maximum Load
- 15A LED, 1/2 HP motor
- Application
- Lights
- Operating Environment
- Outdoor
View on Amazon: Lutron Caseta Outdoor Smart Plug with Remote
The Lutron Caseta Outdoor Smart Plug gives you exterior lighting control engineered for severe weather, carrying an IP66 rating against heavy rain and dust. Unlike indoor wall switches, it plugs directly into an outdoor outlet and includes a wireless two-button Pico remote. It uses Lutron Clear Connect rather than Wi-Fi, requiring a separate Caseta Smart Hub for app scheduling, voice control, and smart platform integration.
Pros
- IP66 weatherproof rating protects against severe rain and dust
- Includes a two-button wireless Pico remote for switching
- Uses Clear Connect RF technology to avoid Wi-Fi congestion
- Integrates with Apple Home, Alexa, Google Assistant, and Ring through the hub
Cons
- Requires a separate Caseta Smart Hub for app and voice control
- External plug-in design rather than an in-wall wired switch
Good fit if
- You need weather-resistant smart switching for landscape lights, string lights, or fountain pumps
- You want physical switch control outdoors using the included Pico remote
- You already use or plan to install a Lutron Caseta Smart Hub
Skip if
- You need an in-wall wired switch rather than an exterior plug-in adapter
- You want a standalone smart plug that connects directly to Wi-Fi without a hub
Verdict: Lutron Caseta Outdoor Smart Plug with Pico Remote is a durable, IP66-rated exterior switch built to operate reliably via Clear Connect RF. It depends on a separately sold Caseta Smart Hub for automation and app control.
Zooz 800 Series Smart On/Off Switch
Best for: 3-way and 4-way Z-Wave lighting setups
- Hub Requirement
- Hub Required (what this guide is about)
- Connectivity
- Z-Wave, Z-Wave Long Range
- Wiring Requirement
- Neutral required
- Circuit Type
- 3-Way, 4-Way, 5-Way
- Switch Function
- On/Off Switch
This in-wall switch provides smart on/off control using Z-Wave 800 Series technology, which supports Z-Wave Long Range and S2 security. It requires a compatible Z-Wave hub for automation and voice control. The 1.16-inch depth fits shallow electrical boxes, and it integrates directly into existing 3-way or 4-way setups without add-on switches. It suits you if you have neutral wiring and want multi-switch lighting control on an established Z-Wave mesh.
Pros
- Works with existing switches in 3-way, 4-way, and 5-way circuits without add-ons
- Compact 1.16-inch depth fits into crowded or shallow electrical boxes
- Supports Z-Wave 800 Series, Z-Wave Long Range, and S2 security
- Includes scene control via multi-tap triggers and built-in range test tool
Cons
- Requires a neutral wire in the switch box
- Does not offer dimming and cannot be wired to existing dimmers
- Requires a separate Z-Wave hub for operation and voice control
Good fit if
- You want to automate a 3-way or 4-way circuit using your existing standard switches.
- You have a neutral wire in the box with line power.
- You use a dedicated Z-Wave hub with support for 800 Series or Long Range.
Skip if
- You need dimming control rather than on/off switching.
- You do not have neutral wiring in the electrical box.
- You want direct connection to smart speakers without a Z-Wave hub.
Verdict: Zooz 800 Series Z-Wave On-Off Switch provides direct multi-way wiring with existing toggle or rocker switches, making it an efficient choice for Z-Wave networks with neutral wiring.
Lutron Caseta Smart 4-Speed Fan Control
Best for: multi-speed paddle ceiling fan automation
- Hub Requirement
- Hub Required (what this guide is about)
- Circuit Type
- 3-Way
- Switch Function
- Fan Controller
- Application
- Ceiling Fans
- Dimensions
- 2.25 × 3.38 × 4.5 inches
This wall control operates paddle ceiling fans across four distinct speeds plus off, eliminating manual pull chains. Because it requires a Lutron Caseta Smart Hub, you can integrate it into schedules and control it through Apple Home, Amazon Alexa, or Google Assistant. It suits you if you want dedicated in-wall fan speed adjustment and smart platform automation without replacing your existing paddle ceiling fan unit.
Pros
- Provides 4 fan speeds plus off directly from the wall
- Integrates with Amazon Alexa, Apple Home, Google Assistant, Ring, and Sonos via smart hub
- Supports app scheduling and scene creation
- Enables multi-location setups using Fan Pico remotes
Cons
- Requires a Lutron Caseta Smart Hub for app and voice features
- Fan Pico remote and mounting bracket are sold separately
- Designed specifically for paddle ceiling fans, not lighting circuits
Good fit if
- You have a pull-chain paddle ceiling fan and want 4-speed wall control.
- You already own or plan to install a Lutron Caseta Smart Hub.
- You want to automate ceiling fan speeds using smart home schedules and voice assistants.
Skip if
- You need a single switch that simultaneously controls fan lighting.
- You want a switch that functions without an external smart hub.
Verdict: Lutron Caseta Smart 4-Speed Fan Control provides dependable four-speed ceiling fan adjustment that integrates smoothly with major smart home platforms via the required Caseta hub.
Lutron Claro Smart Accessory Switch
Best for: multi-location Diva and Claro Caseta circuits
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Alexa, Apple HomeKit, Google Home
- Wiring Requirement
- No Neutral Required
- Circuit Type
- 3-Way, Multi-Location
- Switch Function
- Accessory Switch
- Application
- Lights
This Lutron Caseta Claro accessory switch extends your wired multi-location setup. It requires an existing Diva smart dimmer or Claro smart switch, as it cannot operate standalone. The switch does not require a neutral wire and does not count toward your Caseta hub device limit. You can link up to 10 companion switches per circuit. It works well if you need matched multi-way lighting controls in an Apple HomeKit or Caseta setup.
Pros
- Does not require a neutral wire
- Does not count against the Caseta hub device limit
- Supports wired setups with up to 10 accessory switches per circuit
- Compatible with Apple HomeKit, Alexa, and Google Home via Caseta hub
Cons
- Cannot operate as a standalone switch
- Incompatible with original Caseta PD-6WCL and PD-5ANS or PD-6ANS models
- Wallplate sold separately
Good fit if
- You already have a Lutron Caseta Diva smart dimmer or Claro smart switch.
- You need wired multi-location light control without a neutral wire.
- You want to add multi-way switches without using Caseta hub device limits.
Skip if
- You need a standalone primary switch to control a circuit directly.
- You use older Caseta switches such as the PD-6WCL or PD-5ANS.
Verdict: Lutron Caseta Claro Smart Accessory Switch expands Diva and Claro multi-switch circuits without claiming a slot on your Caseta hub. It provides reliable wired multi-location control across Apple HomeKit and other Caseta-linked platforms.
THIRDREALITY Zigbee No-Wiring Smart Switch
Best for: renters wanting wire-free rocker switch automation
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Echo, Home Assistant, SmartThings, Homey
- Connectivity
- Zigbee
- Wiring Requirement
- No Neutral Required
- Switch Style
- Rocker
- Dimensions
- 1.77 × 0.77 × 4.72 inches
This mechanical smart switch installs over your existing toggle or rocker switch without electrical wiring. Powered by two AAA batteries, it physically flips the existing wall control using Zigbee wireless commands. It handles circuits from 12V up to 220V, making it suitable for low-voltage gas fireplaces as well as standard lighting. It suits you if you rent or want smart control without touching household wiring or neutral leads.
Pros
- Installs over existing switches with no electrical wiring required
- Runs on two AAA batteries without neutral wire dependency
- Compatible with 12V, 24V, 110V, and 220V switches including gas fireplaces
- Direct Zigbee pairing with SmartThings, Hubitat, Home Assistant, and select Echo hubs
Cons
- Requires battery replacements over time
- Incompatible with Tuya Zigbee hubs
- Requires the separately sold Smart Bridge MZ1 for Apple HomeKit and Google Home support
Good fit if
- You rent or want smart control without altering existing electrical wiring.
- You need to automate low-voltage fixtures like gas fireplace switches.
- You use an existing Zigbee hub such as SmartThings, Home Assistant, or Hubitat.
Skip if
- You run your smart home setup on a Tuya Zigbee hub.
- You want an in-wall wired switch that never requires battery changes.
- You need out-of-the-box Apple HomeKit or Google Home integration without an extra bridge.
Verdict: THIRDREALITY Zigbee Snap-On Rocker Switch provides an external, battery-powered automation method that requires zero electrical wiring. It mounts directly over your existing rocker switches and connects reliably through compatible Zigbee hubs.
SONOFF Compact Zigbee Smart Switch
Best for: No-neutral hidden in-wall Zigbee installations
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Alexa, Google Home
- Connectivity
- Zigbee 3.0
- Wiring Requirement
- Neutral Line Required
- Circuit Type
- Two-way
- Dimensions
- 1.68 × 1.68 × 0.79 inches
This in-wall module adds Zigbee 3.0 control to existing standard wall switches without replacing your current switch plates. Measuring roughly 1.68 by 1.68 by 0.79 inches, it fits inside compact mounting boxes and operates without a neutral wire. It works down to three-watt loads without an anti-flicker module and integrates with Alexa and Google Home via a required Zigbee hub. This suits you if you want hidden two-way lighting automation.
Pros
- Requires no neutral wire for installation
- Compact dimensions fit EU, 86-type, and 120-type wall boxes
- Operates loads as low as 3W without an anti-flicker module
- Supports two-way switching with rocker or push-button hardware
Cons
- Requires a compatible Zigbee hub to operate
- Acts as an end device rather than a Zigbee mesh router
Good fit if
- You have switch boxes that lack a neutral wire.
- You want to retain your existing mechanical wall switches.
- You need a module that fits into small electrical enclosures.
Skip if
- You do not have a dedicated Zigbee hub.
- You need an in-wall device that repeats Zigbee signals.
Verdict: SONOFF Compact Zigbee In-Wall Switch provides automated control behind existing physical switches without requiring neutral wiring. It is an effective solution for tight junction boxes and low-wattage lighting circuits.
Lutron Caseta Diva ELV+ Dimmer Switch
Best for: dimming ELV and MLV low-voltage fixtures
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Alexa, Apple Home, Google Home, Ring
- Wiring Requirement
- Neutral Required
- Circuit Type
- Single Pole, 3-Way, Multi-Location
- Switch Function
- Dimmer
- Application
- Lights
This in-wall switch brings smart control to low-voltage fixtures, handling incandescent, halogen, MLV, and ELV loads. You get the Diva paddle design with a slider and preset light bar for manual adjustments. It requires a neutral wire and connects to a Lutron smart hub for app or voice commands. It suits you if you need reliable multi-location dimming for undercabinet, tape, or track lighting.
Pros
- Supports ELV, MLV, incandescent, and halogen lighting loads
- Slider with soft-glow light bar and preset level control
- Supports 3-way setups using mechanical switches, accessory switches, or Pico remotes
- Available in 6 color finishes
Cons
- Requires a neutral wire for installation
- Wall plate not included
- Requires a separate Lutron smart hub for app or voice control
Good fit if
- You need smart dimming for ELV or MLV accent lighting such as tape or track fixtures.
- You have neutral wiring available inside the electrical switch box.
- You prefer a paddle switch with a physical dimming slider.
Skip if
- You have an older switch box that lacks a neutral wire.
- You do not plan to use a Lutron smart hub.
Verdict: Lutron Caseta Diva ELV+ Dimmer Switch delivers precise dimming for low-voltage and accent lighting systems. It is an ideal addition if your home has neutral wiring and you run a Lutron Caseta setup.
Zooz 700 Series Z-Wave In-Wall Smart Relay
Best for: preserving existing wall switches with Z-Wave
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- SmartThings, Hubitat, Home Assistant
- Connectivity
- Z-Wave, Z-Wave Long Range
- Wiring Requirement
- Neutral Required
- Circuit Type
- 3-Way
- Switch Function
- On/Off Switch
Zooz 700 Series Z-Wave In-Wall Smart Relay installs behind your existing mechanical switch or inside a light fixture to add Z-Wave control without changing wall plates. It measures 1.5 by 1.4 by 0.7 inches and includes dry contact relay outputs with smart bulb support. You need a neutral wire, a 120V line, and a compatible Z-Wave hub like SmartThings or Home Assistant. It suits users keeping standard switches while automating lighting.
Pros
- Compact 1.5 by 1.4 by 0.7 inch dimensions fit crowded switch boxes
- Smart bulb mode maintains power to smart lights during switch operation
- Supports 3-way setups and installation at the light fixture
- Dry contact output supports custom 120V load switching
Cons
- Requires a neutral wire connection
- Works only with mechanical on/off or momentary switches, not dimmers
- Requires a compatible Z-Wave hub to operate
Good fit if
- You want to keep your existing mechanical switch style and wall plates.
- You have access to a neutral wire in the switch box or light fixture.
- You use a Z-Wave ecosystem like Home Assistant, Hubitat, or SmartThings.
Skip if
- You plan to wire the relay to an existing dimmer or electronic switch.
- You do not have a neutral wire at the switch box or fixture.
- You do not own a compatible Z-Wave hub.
Verdict: Zooz 700 Series Z-Wave In-Wall Smart Relay brings Z-Wave Long Range functionality to existing mechanical switches while preserving your current wall plates. It provides dry contact control and smart bulb support provided your wiring includes a neutral line.
SONOFF No-Neutral Zigbee Switch
Best for: older homes without neutral wiring
- Hub Requirement
- Hub Required (what this guide is about)
- Smart Home Compatibility
- Alexa, Google Home, SmartThings
- Connectivity
- Zigbee 3.0
- Wiring Requirement
- No Neutral Required
- Circuit Type
- 2-Way
- Switch Function
- On/Off Switch
This package gives you two compact in-wall relays designed to fit inside standard switch boxes measuring 1.55 by 1.25 by 0.72 inches. You do not need a neutral wire to install them, and they operate lights starting at 3 watts without an anti-flicker module. They communicate using Zigbee 3.0 and require a compatible hub for local automation. This setup suits you if your electrical boxes lack neutral wiring.
Pros
- Operates without a neutral wire
- Compact dimensions at 1.55 by 1.25 by 0.72 inches
- Supports loads down to 3W without an anti-flicker module
- Works with rocker and push-button external switches
- Compatible with Alexa, Google Home, and SmartThings
Cons
- Functions as a Zigbee End-Device without repeating network signals
- Requires a separate compatible Zigbee hub to operate
Good fit if
- You have switch boxes that lack neutral wiring
- You want to keep your existing external rocker or push-button switches
- You run a Zigbee hub and want low-wattage lighting control
Skip if
- You need in-wall relays that extend your Zigbee mesh network as routers
- You do not own and do not want to set up a dedicated smart hub
Verdict: SONOFF Zigbee No-Neutral Smart Switch 2-Pack provides compact in-wall Zigbee control for homes without neutral wiring in the switch box. It reliably automates lighting loads down to 3W using your existing wall switches and a compatible hub.
Specifications side by side
| Spec | Lutron Caseta No-Neutral Smart Dimmer Switch | Lutron Caseta Diva Smart Dimmer Switch | THIRDREALITY Zigbee Smart Plug | Lutron Caseta Smart Switch for Lights and Fans | Lutron Caseta Claro Smart Switch | Lutron Caseta Smart Switch for Lights and Fans | Lutron Caseta Outdoor Smart Plug with Remote | Zooz 800 Series Smart On/Off Switch | Lutron Caseta Smart 4-Speed Fan Control | Lutron Claro Smart Accessory Switch | THIRDREALITY Zigbee No-Wiring Smart Switch | SONOFF Compact Zigbee Smart Switch | Lutron Caseta Diva ELV+ Dimmer Switch | Zooz 700 Series Z-Wave In-Wall Smart Relay | SONOFF No-Neutral Zigbee Switch |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Smart Home Compatibility | Alexa, Apple Home, Google Assistant | Alexa, Apple Home, Google Assistant | Home Assistant, SmartThings, Alexa | Alexa, Apple HomeKit, Google Assistant | Alexa, Apple Home, Google Assistant | Apple Home, Alexa, Google Assistant | Alexa, Google Assistant, Apple Home | not specified | not specified | Alexa, Apple HomeKit, Google Home | Echo, Home Assistant, SmartThings, Homey | Alexa, Google Home | Alexa, Apple Home, Google Home, Ring | SmartThings, Hubitat, Home Assistant | Alexa, Google Home, SmartThings |
| Hub Requirement | Smart Hub Required | Smart Hub Required | Zigbee Hub Required | Hub Required | Hub Required | Smart Hub Required | Smart Hub Required | Hub Required | Caseta Smart Hub required | Hub Required | Hub Required | Zigbee Hub Required | Smart Hub Required | Hub Required | Hub Required |
| Connectivity | not specified | not specified | Zigbee 3.0 | not specified | not specified | not specified | Clear Connect | Z-Wave, Z-Wave Long Range | not specified | not specified | Zigbee | Zigbee 3.0 | not specified | Z-Wave, Z-Wave Long Range | Zigbee 3.0 |
| Wiring Requirement | No Neutral Required | No Neutral Required | not specified | Neutral Required | Neutral Required | Neutral Required | not specified | Neutral required | not specified | No Neutral Required | No Neutral Required | Neutral Line Required | Neutral Required | Neutral Required | No Neutral Required |
| Circuit Type | 3-Way | 3-Way | not specified | 3-Way | 3-Way | Single Pole, 3-Way, Multi-Location | not specified | 3-Way, 4-Way, 5-Way | 3-Way | 3-Way, Multi-Location | not specified | Two-way | Single Pole, 3-Way, Multi-Location | 3-Way | 2-Way |
| Switch Function | Dimmer | Dimmer | not specified | On/Off Switch | On/Off Switch | On/Off Switch | not specified | On/Off Switch | Fan Controller | Accessory Switch | not specified | not specified | Dimmer | On/Off Switch | On/Off Switch |
| Maximum Load | 150W LED, 600W Incandescent/Halogen | 150W LED, 600W Incandescent/Halogen | 15A | 600W Incand, 5A LED/CFL, 3.0A Fan | 5A lighting, 3A fan | 600W Light, 6A Fan | 15A LED, 1/2 HP motor | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Switch Style | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Rocker | not specified | not specified | not specified | not specified |
| Application | not specified | not specified | not specified | Lights, Ceiling Fans | Lights, Ceiling Fans | Lights, Ceiling Fans | Lights | not specified | Ceiling Fans | Lights | not specified | not specified | Lights | not specified | not specified |
| Operating Environment | not specified | not specified | not specified | not specified | not specified | not specified | Outdoor | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Dimensions | 1.13 × 2.93 × 4.69 inches | 1.44 × 2.94 × 4.69 inches | 2.7 × 1.48 × 1.13 inches | 1.44 × 2.94 × 4.69 inches | 1.44 × 2.94 × 4.69 inches | 1.44 × 2.94 × 4.69 inches | not specified | not specified | 2.25 × 3.38 × 4.5 inches | 1.44 × 2.94 × 4.69 inches | 1.77 × 0.77 × 4.72 inches | 1.68 × 1.68 × 0.79 inches | 2 × 3.37 × 4.5 inches | 1.5 × 1.4 × 0.7 inches | 1.55 × 1.25 × 0.72 inches |
| Weight | 5.6 ounces | not specified | not specified | not specified | not specified | 3.2 ounces | not specified | not specified | not specified | not specified | 3.53 ounces | not specified | not specified | not specified | not specified |
| Size | 1 Pack | 1 Pack | not specified | 120 volts | 1 Pack | 1 Pack | 1 Pack | not specified | not specified | Pack of 1 | not specified | not specified | not specified | not specified | ZBMINIL2 2-Pack |
| Color | Ivory | White | White | White | Ivory | White | Black | White | White | Black | White | White | White | not specified | white |
| Model | PD-6WCL-IV | DVRFW-6L-WH-A | 3RSP02028BZ | PDW-5ANS-WH-A | DVRF-5NS-IV | PD-6ANS-WH | not specified | ZEN76 800LR | PD-FSQN-WH | DVRF-AS-BL | P1SSC1 | ZBMINIR2 | DVRF-5NE-WH | ZEN51 | ZBMINIL2 |
If you connect multiple smart bridges through Ethernet, review the best network switches with 16 Ports to evaluate your hardware capacity.
How to Choose the Right Smart Switch
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Match Load Type
Check the application specification before you connect a switch to a motorized fixture. Standard dimmers work only on lighting loads, while dedicated fan switches manage electric motor requirements. If you plan to automate an exhaust fan or a ceiling fan, verify the supported amperage. For example, the Lutron Caseta Smart Switch for Lights and Fans specifies support for lighting fixtures and up to 3.0A fan loads. Connecting an unsupported motor to a lighting-only dimmer can cause hardware failure. Match the spec directly to your fixture type.
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Choose Your Switch Style
Decide whether you want to replace your entire wall plate or keep your current switch face. Standard smart switches swap out the exterior toggle or paddle. In contrast, compact relay modules sit inside the junction box behind your existing physical switches. The Zooz 700 Series Z-Wave In-Wall Smart Relay fits inside the wall box to keep your existing mechanical switch and wall plate intact. This style works well when you want smart automation while maintaining the uniform visual appearance of your room's original trim and decor.
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Consider Zero-Wiring Retrofit Switches
If you rent your home or prefer not to handle electrical wiring, inspect the mounting requirements. Most smart switches require you to turn off the breaker and rewire connections inside a wall box. A snap-on model offers an alternative by attaching over your current hardware. The THIRDREALITY Zigbee No-Wiring Smart Switch mounts directly over an existing mechanical rocker switch and operates mechanically without touching electrical wires. This design allows you to automate your lights quickly and remove the device cleanly whenever you move out.
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Check Multi-Location Switch Capabilities
If you have a hallway or staircase controlled by two or more switches, check the circuit type and accessory compatibility. Some multi-switch setups require matching companion units to communicate properly across traveler wires. The Lutron Claro Smart Accessory Switch works alongside compatible Diva and Claro smart switches to provide multi-location control. Choosing a dedicated accessory switch lets you maintain consistent dimming or switching from both ends of the room without taking up an extra device connection slot on your smart bridge.
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Verify Platform Ecosystem Support
Review the listed smart home compatibility to ensure the switch links with your preferred control platform. Hub-dependent devices bridge to broader systems, but platform support varies by brand and integration software. For example, the THIRDREALITY Zigbee Smart Plug lists explicit compatibility with Home Assistant for ecosystem control. If your household relies on specific automations or dashboards, match the product's listed software support before purchasing. Confirming platform compatibility in the published specifications ensures your routines and automation schedules run smoothly without requiring extra translation layers.
Frequently asked questions
Do all smart switches that require a hub need neutral wiring?
No. Some smart switches function without neutral wiring inside your junction box. For instance, the Lutron Caseta Smart Dimmer Switch (PD-6WCL-IV) and the SONOFF Zigbee In-Wall Switch (ZBMINIL2) both feature no-neutral installation specifications. If your home lacks neutral wires, selecting one of these dedicated no-neutral units ensures compatibility with older electrical junction boxes.
Can you use a single hub to manage Zigbee, Z-Wave, and Lutron switches together?
No individual proprietary hub natively operates every protocol. The Zooz switches run on Z-Wave, THIRDREALITY and SONOFF models utilize Zigbee, and Caseta hardware depends on Lutron smart bridges. However, open automation platforms like Home Assistant or SmartThings can unify these devices under one interface if your setup includes the appropriate physical radios and bridges.
How do in-wall relays differ from standard smart wall switches?
In-wall relays install directly inside junction boxes behind existing toggle or rocker switches. Compact units such as the Zooz ZEN51 or SONOFF ZBMINIR2 preserve your original switch faceplates while adding automation behind the wall. Standard smart switches, such as the Lutron Diva or Claro lines, replace your existing mechanical switch and faceplate hardware entirely.
Can you control ceiling fan speed with a lighting dimmer switch?
No. Dimmers are intended strictly for lighting loads, not motor circuits. Motorized fixtures require dedicated controllers to prevent electrical damage. For multi-speed adjustment, choose a unit like the Lutron PD-FSQN-WH four-speed fan control. For simple on/off fan operation, switches like the Lutron PD-6ANS-WH support fan loads up to 6A.
Can renters install hub-connected smart switches without modifying wall wiring?
Yes, you can automate switches without modifying existing electrical boxes. The THIRDREALITY P1SSC1 smart switch features a battery-powered design that mounts over existing rocker plates without wiring. Alternatively, external modules like the THIRDREALITY Zigbee Smart Plug automate plugged-in appliances and lamps without requiring you to touch any household electrical lines.
Does every connected smart switch occupy a slot on your hub?
Not always. While primary switches and dimmers connect to the hub, specific companion devices do not occupy hub capacity. For example, the Lutron Claro Smart Accessory Switch (DVRF-AS-BL) wires directly into Diva and Claro multi-switch circuits without taking a hub device slot, extending control across Apple HomeKit ecosystems without consuming system capacity.
How do multi-way circuits work with hub-required smart switches?
Multi-location installations require switch hardware configured for 3-way or 4-way circuits. The Zooz ZEN76 800LR connects directly into 3-way wiring alongside standard mechanical switches. In Caseta systems, you integrate dedicated accessory hardware like the DVRF-AS-BL accessory switch to ensure synchronized, reliable multi-point lighting control across your wired circuit.