Looking for the easiest path to smart lighting? Screw a smart bulb into a socket. Done! If you’re looking for something with more elegance and sophistication, however, you should replace the switches in your walls. Besides, the most common drawback of relying on smart bulbs with conventional switches is that someone inevitably turns the switch off. Boom! Your expensive smart bulb is now a dumb bulb that can’t be controlled with voice commands or be included in any lighting automations you’ve set up.
If there’s a downside to converting to smart in-wall dimmers and switches, it’s installing them. Don’t worry, it’s an easy DIY project. Be aware, however, that most–but certainly not all–smart controls depend on the presence of a neutral wire in the box. The neutral wire will supply constant power to the device’s radio, even when the load it’s controlling is turned off. If you’re not comfortable dealing with high-voltage wiring, hire an electrician for the job.
Now, don’t think we’re besmirching smart bulbs. They have their place, too; if for no other reason than being able to change the color of the lighting in a room. I’ve lived with smart lighting in my home for more than 15 years, and I can’t imagine turning my lights on and off without the options of using a voice command, in response to motion, on schedules, or with a smartphone app. You won’t be disappointed in the results.
Need more information before you choose a specific product? We can answer all your questions about choosing the right type of smart dimmer or switch at the preceding link.
Why you should trust us
TechHive’s editors and contributors have been testing smart switches and dimmers for more than that 15 years, installing them in our own homes to gain truly real-world experience before we commit to our opinions. We continuously test the latest smart dimmers and switches, along with the apps that control them. We blend those experiences with our general knowledge of smart home devices, so we’re able to assess how well these products integrate with other smart devices you’ll want to use in your home.
TechHive’s favorite smart dimmers and switches
Best smart dimmer overall — Lutron Diva Smart Dimmer (and the Lutron Caséta ecosystem)
Pros
- Part of the robust Lutron Caséta smart home ecosystem
- Broadly compatible with other smart products and systems
- Doesn’t depend on a neutral wire
Cons
- You must have Lutron’s Caséta Smart Hub wired to your home network
- Lutron’s uncertain stance on Matter
Why we like the Lutron Diva Smart Dimmer (and its Caséta ecosystem)
Lutron built its own smart home ecosystem based on its proprietary Clear Connect technology. By definition, proprietary standards far less open than standards like Matter, Wi-Fi, Zigbee, or Z-Wave; however, the Caséta Smart Hub you’ll need to connect Caseéta products to your home network supports Amazon Alexa, Apple HomeKit, Google Assistant, IFTTT, Samsung SmartThings, and Sonos speakers, and more. And all that is in addition to Lutron’s own lighting products, smart shades and smart blinds, ceiling-fan controllers, motion sensors, and other products. With that degree of compatibility, it’s difficult to imagine a complex smart home routine that couldn’t be accomplished.
Who should buy the Lutron Diva Smart Dimmer (and its Caséta ecosystem)
Anyone looking to incorporate lighting controls into a robust smart home network should consider the Lutron Diva Smart Dimmer and a Caséta Smart Hub. Lights can switch on when someone rings a doorbell or automatically turn off when you leave home. If you have a Sonos speaker, you can automatically play music when you return home. While Lutron’s technology is not Matter compatible today, Lutron is a member of the Connectivity Standards Alliance that is responsible for developing Matter, so it’s possible that Caséta could be Matter compatible one day. Given the broad compatibility the Caséta ecosystem already enjoys, that ultimately might not make a difference. Lutron’s original Caséta dimmer switch is an equally good product and costs slightly less, but it looks a bit busier.
Read our full
Lutron Diva Smart Dimmer review
Best budget-priced smart dimmer — Kasa Smart Wi-Fi Dimmer Switch, Motion-Activated (model ES20M)
Pros
- Endlessly tweakable motion-sensing options
- Wiring design makes for easy installation
- Attractive design aesthetic
Cons
- Requires a neutral wire
- Kasa app needs to be modernized
- Motion sensing range is a bit weak
Why we like the Kasa Smart Wi-Fi Dimmer Switch (model ES20M)
TP-Link’s Kasa Smart Wi-Fi dimmer switch is remarkably inexpensive, and its Wi-Fi support means that it doesn’t require a smart hub to work. Users have immense control over how its motion- and light-sensing features work, with full support for fade-in/out options, motion sensing, and ambient light detection.
Who should buy the Kasa Smart Wi-Fi Dimmer Switch (model ES20M)
The low price makes the Kasa Smart Wi-Fi Dimmer an attractive alternative, but buyers will need to have access to a neutral wire at the installation point. This dimmer will not work with Apple HomeKit or 3-way circuits, but if you don’t need either of those functions, the Kasa Smart Wi-Fi Dimmer is an absolute bargain. Don’t have a neutral wire in the box where you want to install a motion-activated dimmer? Consider the GE Cync Dimmer, below.
Read our full
Kasa Smart Wi-Fi Dimmer Switch, Motion-Activated (model ES20M) review
Best Wi-Fi smart switch/dimmer — GE Cync Dimmer + Motion Smart Switch
Pros
- Motion sensing works great
- Very easy to set up
- Can control Cync smart bulbs even if they aren’t wired to the switch
- Available in a version that doesn’t require a neutral wire
Cons
- Ugly industrial design
- Motion sensing settings aren’t always intuitive
- Pricey for this category
Why we like the GE Cync Dimmer + Motion Smart Switch
This isn’t the prettiest dimmer on the market, but GE Lighting’s Cync Dimmer + Motion Sensor Switch sure packs the features. An onboard motion sensor can turn the light switch on when the room is occupied, and an ambient light sensor will stop that from happening if there’s enough daylight that the extra light isn’t needed. The switch can also control GE Lighting’s Cync smart bulbs, even if they’re not physically wired to the dimmer.
Who should buy the GE Cync Dimmer + Motion Smart Switch
The GE Cync Dimmer + Motion Sensor Switch doesn’t require a smart home hub, and GE now offers users a choice of a cheaper version that does require a neutral wire at the installation location, and a 3-wire version that doesn’t depend on a neutral wire. The technology is still up-to-date, but the Cync Dimmer + Motion Sensor Switch has seen a substantial price drop since its introduction in 2020.
Read our full
GE Cync Dimmer + Motion Smart Switch review
Best Zigbee smart switch/dimmer — Jasco Enbrighten Zigbee In-Wall Smart Dimmer
Pros
- SimpleWire technology effectively eases installation hassles
- Slim profile might help some users with space management in the electrical box
- Smooth installation and no operational trouble
Cons
- Requires a neutral wire
- Broadsheet user manual will cause your eyes to glaze over
- Dependent on a third-party smart home hub with a Zigbee radio
Why we like the Jasco Enbrighten Zigbee In-Wall Smart Dimmer
The Jasco Enbrighten Zigbee In-Wall Smart Dimmer is perfect for less-experienced homeowners who want to DIY their smart lighting. The slimline design isn’t tough to shove back into the box when you install it, and Jasco has given the Enbrighten enough onboard intelligence to distinguish the line wire from the load wire, so you don’t need to worry about mixing them up. You will, however, need a neutral wire at the installation location.
Who should buy the Jasco Enbrighten Zigbee In-Wall Smart Dimmer
You’ll need a smart home hub that supports the Zigbee protocol. Several models of the Amazon Echo and Echo Show are well-known examples, but there are dozens of options, including the Samsung SmartThings Station, the Aeotec Smart Home Hub, or the Hubitat Elevation. You should be aware, however, that Zigbee support does not automatically mean Matter support. This device is not Matter compatible.
Read our full
Jasco Enbrighten Zigbee In-Wall Smart Dimmer review
Most sophisticated smart switch/dimmer — Brilliant Smart Home Control
Pros
- Touchscreen and built-in camera adds incredible flexibility
- Alexa onboard; plus great third-party integrations, including Ring and Apple HomeKit
- Impressive build quality
Cons
- Devilishly complex to set up properly (at least in my house)
- Very expensive: $399 for single switch panel, $449 for a 2-switch panel, $499 for a 3-switch panel
Why we like the Brilliant Smart Home Control
The touchscreen and the touch-sensitive sliders on the Brilliant Smart Home Control smart switch/dimmer gives it some impressive capabilities, including the capacity to stream video from Ring and Google Nest video doorbells and control Sonos multi-room audio systems. Don’t want to mess with the wiring inside your home’s walls? The company offers a model that you can hang on the wall and plug into a nearby electrical outlet.
Who should buy the Brilliant Smart Home Control
As you’d expect, all those sexy Brilliant Control features come at a price—both in terms of cost and installation complexity—but if you want the most sophisticated smart home controls on the market, this is it.
Read our full
Brilliant Smart Home Control review
Best multi-function smart switch/dimmer — Leviton Decora Smart Voice Dimmer with Amazon Alexa (model DWVAA)
Pros
- Alexa with no footprint, exposed power cord, or wall wart
- No smart home hub required
- Lots of options for lighting control and integration with other smart home devices
Cons
- Wi-Fi dependent, so range could be an issue
- Operates on 2.4GHz networks only
- Doesn’t support Alexa’s whisper mode
- Tinny speaker, and it can’t be paired with a Bluetooth speaker
- No HomeKit or Google Assistant support
Why we like the Leviton Decora Smart Voice Wi-Fi Dimmer with Alexa
Just how many features can you cram in a single-gang light switch? Leviton squeezes a Wi-Fi radio, a dimmer switch, and an entire Amazon Alexa-compatible smart speaker into this device. Yes, Ecobee pulled off a similar trick much earlier, but with an on/off switch, not a dimmer. Leviton also has a deeper catalog of other Wi-Fi components—switches, dimmers, ceiling fan controllers, multi-button controllers, and more—to go with it.
Who should buy the Leviton Decora Smart Voice Wi-Fi Dimmer with Alexa
If your home revolves around Amazon’s Alexa voice assistant, installing this dimmer in your wall will eliminate the need to put an Echo smart speaker in the same room. Leviton has added Google Home support since we first reviewed this product; Apple Home users, however, should look elsewhere.
Read our full
Leviton Decora Smart Voice Dimmer with Amazon Alexa (model DWVAA) review
How to choose the right smart dimmers and switches for your home
You’ll need to make a raft of decisions before you choose which smart switches to install in your home, and your choices will be influenced by everything from the type of wiring in your walls to what flavor of smart home system you have now or plan to install later. Here’s what you need to know in roughly the order you’ll need to decide.
Neutral wire requirement: Many smart switches and dimmers require the presence of a neutral wire in the electrical box inside the wall, in addition to the line (power from the circuit-breaker panel), load (power to the light to be controlled), and ground (a low-resistance path for electricity to flow to the ground in the event of a malfunction) wires. Smart switches have radios that must be constantly powered, and the neutral wire is usually what supplies that juice.
While all homes have neutral wires, many older homes don’t have a neutral wire in every box. If you’re not sure if there’s a neutral wire at the location you want to install a smart switch, this how-to story will help you figure it out. If you don’t have a neutral wire, Lutron’s Caséta and Diva smart dimmers and the GE Cync Dimmer (3-wire version) are among the few smart switches that do not require one.
Most smart switches depend on the presence of a neutral wire to supply energy to their radios, but many homes built prior to the 1980s don’t have a neutral wire in every box. GE Cync and Lutron Caséta are among the few smart switches that don’t depend a neutral wire.
GE Lighting
Single- or multi-pole: If the light you wish to control is connected to just one switch, then you’ll need to replace it with a single-pole smart switch. If more than one switch controls that load—switches on opposite sides of a room, for example—then you’ll need to replace it with a multi-pole (aka 3-way) smart switch. This typically means that you’ll also need to buy a companion switch or switches for the other end(s) of the circuit. There are a few exceptions to this rule, so check the documentation accompanying whichever smart switch you decide to buy before you install it.
Control protocol: You’ll undoubtedly want to control your smart lighting with your smartphone or tablet, and most people will also want to turn lights on and off with voice commands spoken to a smart speaker, such as an Amazon Echo or a Nest Hub. But to do that, the smart switch you buy must have some way of connecting to your home network (which explains why Bluetooth smart switches can’t talk to smart speakers).
Some smart switches connect directly to your Wi-Fi network, while others require a bridge to your router. If you’ve invested in a smart home system—Samsung SmartThings, Hubitat Elevation, Vivint Smart Home, or any other ecosystem—you’ll want to make sure that the smart switch you buy is compatible with it. These are the most common communication protocols you’ll encounter.
- Bluetooth smart switches are controlled directly by an app on your smartphone or tablet. Bluetooth smart lighting is simple, because you don’t need a hub or a connection to your home network. That isolation also makes it secure, because you must be within about 30 feet of the switch to pair with it. On the other hand, authorized users also must be within 30 feet of a Bluetooth switch to control it, and you can’t control the switch when you’re away from home (although most Bluetooth switches can be controlled according to a pre-programmed schedule). The other major limitation of Bluetooth switches is that they can’t be controlled by smart speakers or smart home hubs, which generally rely on one of the other wireless protocols described here. As a result, Bluetooth-only switches have become relatively rare.
- Lutron Clear Connect is a proprietary wireless protocol used by Lutron Caséta Wireless smart home devices, including switches, dimmers, ceiling fan controllers, occupancy sensors, motorized blinds and shades, and battery-powered remote controls. You can also control a limited number of third-party devices with Lutron’s app—ranging from thermostats to Wi-Fi speakers—and incorporate them into smart home “scenes.” Clear Connect operates independently of your Wi-Fi network, but you must hardwire a Lutron Smart Bridge to your router to use it. You can control Lutron Caséta devices via Lutron’s app, with voice commands spoken to smart speakers, and from mobile devices anywhere you have broadband access. Some smart home systems, including Samsung SmartThings, can also incorporate Lutron’s smart home products.
- Matter is the most recent smart home standard. It aims to be an overarching standard incorporating several other smart home standards, including Thread, Wi-Fi, and Zigbee. Matter’s promise is that it will one day unite all the various smart home ecosystems: Amazon Alexa, Apple HomeKit, Google Home, and Samsung SmartThings among them. Matter could become more important over time, but we don’t consider the absence of Matter support or compatibility to be a reason to avoid any smart home product today.
- Thread is a low-power networking technology that’s a core element of the Matter smart home standard. It’s similar to Z-Wave and Zigbee in that Thread devices can talk directly to each other; unlike those standards, Thread doesn’t depend on a central hub. Matter devices can use either Thread or Wi-Fi, but battery-powered devices are more likely to use Thread because of its low power requirements. To access Thread devices from the internet, you’ll need to have a Thread border router, such as the Aqara Hub M3, the Aeotec Smart Home Hub; several models of Amazon Echo smart speakers and Echo Show smart displays; an Apple TV 4K (2nd-gen and up), an Apple HomePod or HomePod mini; some later-model Eero routers; a Nest Wifi or Nest Wifi Pro; or a Samsung SmartThings Station. This is not a complete list.
- Wi-Fi has gained a foothold in smart lighting thanks to the rise of mesh routers that blanket your home with network coverage. The attraction of Wi-Fi smart switches is that they generally don’t require a hub or a bridge to connect to your router (although Leviton does have some Wi-Fi products that communicate over a proprietary network with a plug-in bridge that connects them to Wi-Fi. While Wi-Fi is incorporated into the Matter smart home standard, that doesn’t mean every Wi-Fi device is automatically Matter compatible.
- Z-Wave This is a wireless mesh network technology in which each node on the network is also a repeater that can forward commands to other Z-Wave devices nearby. It operates in the unlicensed 800- to 900MHz radio spectrum (specifically, 908.42MHz in North America). Its low power requirement means it can be incorporated into battery-operated devices that cannot be plugged directly into an electrical circuit, including door/window sensors, smart locks, water leak detectors, and motion sensors in addition to smart dimmers and switches. You’ll need a smart home hub, such as a Samsung SmartThings, to act as a bridge to your Wi-Fi network. There are fewer Z-Wave products available today, compared to the standard’s heyday, and some of the Z-Wave dimmers and switches we’ve reviewed from Jasco and Leviton are no longer in production, but some other brands are still available. Note that Z-Wave Long Range (LR) family of chips that was introduced in 2020 do not operate on a mesh network. They use a star network topology in which each Z-Wave LR node communicates directly with the Z-Wave hub that’s connected to your router for internet access.
- Zigbee This wireless mesh network technology is very similar to Z-Wave, but it operates in the unlicensed 2.4GHz radio spectrum (same as single-band Wi-Fi). Like Z-Wave, Zigbee has a lower power requirement and can be incorporated into both battery and line-powered devices, ranging from sensors to smart switches. And as with Z-Wave, you’ll need a smart home hub or some other kind of bridge to connect Zigbee devices to your home network. This could be something as simple as an Amazon Echo Plus, which has an integrated Zigbee radio, or it could be on the order of a Samsung SmartThings hub, which has both Zigbee and Z-Wave radios onboard. Like Wi-Fi, Zigbee is part of the Matter smart home standard; also like Wi-Fi, not every Zigbee device is automatically Matter compatible.
Lutron’s Aurora Smart Dimmer prevents a conventional toggle switch from shutting off the power to any Philips Hue smart bulbs that are connected to the switch. It can also wirelessly control those bulbs, including dimming them by rotating the knob.
Lutron
Switch mechanism: Since most people control smart switches and dimmers with voice commands, they soon discover that they rarely physically interact with the devices in their walls. But you’ll want to consider the type of mechanism the smart switch uses if for no other reason than to ensure its aesthetic matches the rest of your home. These are the most common types you’ll encounter.
Relatively few manufacturers make smart switches that look like this type of old-fashioned toggle switch.
Michael Brown/Foundry
- Rocker (aka paddle) This type of switch has a wide plastic panel that rocks back and forth when pressed to turn the controlled load on and off (one side of the switch raises when the other is depressed). These modern-looking switches hug the wall and are very easy to operate. Since a command issued over the air will override whatever physical state the switch is otherwise in, smart rocker switches typically don’t physically flip, so there’s no confusion when you see a lit bulb when the switch is ostensibly in the “off” position. A smart dimmer switch might have a secondary control—a vertical slider or a horizontal rocker—for adjusting brightness
- Toggle A toggle switch operates by moving a lever up and down (flipping the lever up turns the controlled light on, and flipping it down turns it off). These types of switches tend to look more old-fashioned than rocker switches, but you can find smart versions of them if you want something that at least resembles the other switches you have in your walls. As with smart rocker switches, they generally don’t completely change physical appearance when switched on or off.
- Touch High-end smart switches and dimmers feature touch-sensitive surfaces. Typically made of glass, touch-sensitive smart switches and dimmers are usually backlit by one or more LEDs that can be multiple colors. The touch sensitivity can be as simple as touch to turn the switch on and touch again to turn it off, or it can be as complex as displaying a user interface that supports finger swipes for calling up different lighting scenes or control elements. Needless to say, these types of smart switches and dimmers cost considerably more than simple plastic devices.
Brilliant’s touchscreen panel lets you see and talk with a person at your door when a visitor activates your Ring Video Doorbell.
Christopher Null/Foundry
Wiring connections: Smart switches and dimmers tend to be larger than their dumb counterparts, so you should consider how the new switch will fit in your existing electrical box. This is particularly important if you’re installing multiple smart switches next to each other in a single box. Remember that there will typically be at least four wires to deal with—line, load, neutral, and ground—and that there will also be a traveler wire if you’re dealing with a multi-pole circuit. It can be challenging to stuff all those wires and the new switch back into the box. These are the most common types of electrical connections you’ll encounter in smart switches.
- Backstabs These are holes in the back of the switch into which you’ll push (“stab”) the appropriate solid copper wires coming out of the wall.
- Pigtails Some switches have short electrical wires emerging from the back of the switch that you’ll attach to the wires coming out of the wall, using wire nuts to secure them. This is generally the easiest technique, but if the switch is deep, it can be a challenge to pack the extra wires and the wire nuts tightly enough into the box so that the switch mounts flush against the wall. It can be particularly difficult if the box has other devices in it.
- Terminals With this type of switch, you’ll wind the wires coming out of the wall around flat screws on the sides of the switch and then tighten the screws down. This technique presents less of a challenge when it comes to pushing the wires and the switch back into the box, but the wires can be stiff and you’ll need to be careful to ensure the stripped wire doesn’t come into contact with stripped wires connected to adjacent switches in the box or the box itself, if it’s metal.
Pigtails and wire nuts are one common way to connect a smart switch to your existing in-wall wiring.
Christopher Null/Foundry
How we evaluate smart dimmers and switches
How easy are the dimmers and switches to install? Can a relatively inexperienced homeowner handle the wiring, or will they need to hire a professional electrician?
What smart home platforms does the device support? The more protocols an individual switch or dimmer can work with, the more flexible it will be as smart home technology evolves in the future.
Is there an app? If so, how polished is the interface and how easy is it to use the app to control the dimmers and switches. If they’re motion-activated, how reliably do they respond to movement in a room.
If the dimmer and switch have added features like cameras or speakers, we look at how those features perform when compared to standalone devices that perform those functions.
Other smart dimmers and switches we’ve reviewed
- Eaton Wi-Fi smart universal dimmer: Eaton is a very big name in the electric market, but this device failed to impress.
- GE Cync Smart Dimmer Light Switch: This is a decidedly odd-looking smart dimmer, but it’s a great choice if you don’t have a neutral wire in the box where you want to install it. It connects directly to your Wi-Fi network, so there’s no smart home hub requirement.
- Leviton Decora Smart Zigbee dimmer (model DG6HD): This is a Zigbee dimmer, but not a Matter-compatible one (to be fair, it predates Matter by several years). It’s a solid product, but its size gave us installation trouble. It’s worth noting, however, that it appears to be out of production at Leviton.
- Leviton Decora Smart Wi-Fi (model DW6HD-1BZ): This was the first generation of Leviton’s Decorea Smart Wi-Fi products; as such, it has been discontinued. We have not yet reviewed the second-generation product that replaced it.
- Treatlife Smart Dimmer: This incredibly inexpensive connects to your 2.4GHz Wi-Fi network, but its performance is commensurate with its price.
- Treatlife 3-way Smart Dimmer (model DS02): This Treatlife product is much better than the one reviewed above. Its primary claim to fame is that it can be installed on a 3-way circuit without needing matching (aka companion) switches on the other ends of the circuit.
- Sinopé Smart Adaptive Phase Dimmer (model DM2550ZB): This Zigbee dimmer is very expensive, but the company’s smart adaptive phase dimming all but eliminates the risk that a connected load–LED lighting in particular–will flicker or turn off prematurely as it’s dimmed.
- Wemo Smart Dimmer with Thread (model WDS070): Wemo’s dimmer supports Thread, so it must support Matter, right? Well, no it doesn’t; and while you’ll still find this product available at Amazon and a few other places, it seems Belkin has discontinued it.