What is smart light switch and how does it work What is smart light switch and how does it work

What is smart light switch and how does it work

The days of manually clicking switches are already behind us as smart switches have become the new norm and taken convenience to a different level. In this article, we’ll learn about what is smart light switch and how does it work in a detailed manner.

A smart light switch effectively replaces conventional switches as a part of an automated system. You can remotely or using voice assistants turn that switch on and off once you connect it to your home's wifi network. Your light bulbs only need to be the ones linked to that switch; they don't even need to be smart bulbs.

Smartphone apps that offer setup, schedule, dimmer, and control choices are included with smart light switches. Geofencing, which uses your phone's location data to automatically turn on lights, is frequently included in apps. The app has different functions depending on the brand, but normally it has the same features as apps for smart light bulbs.

It's important to note that certain manufacturers of smart lights offer light switches made expressly to function with their smart bulbs. Before purchasing a smart light switch, make sure to carefully read the specifications on the package. Otherwise, you can be stuck with a switch that exclusively functions with smart bulbs.

What is a smart light switch? Its functions and benefits for our smart home life?

A smart switch is a configurable wireless switch that enables automation and lighting control in addition to offering the same capabilities as a conventional switch. Smart switches enable users to control their lights with a smartphone app, voice assistant, or pre-programmed schedule by connecting to a smart home hub.

Any appliance or light in your home can be operated by a smart switch. As a result, it has the ability to turn almost anything on or off, including exhaust fans, ceiling fans, and independent A/C units.

smart light switch

Smart Switches have the power to drastically alter how we live. All of your devices can be controlled by the little, discrete box that you can connect into any socket in your house. Lights, fans, TVs, and even coffee makers can all be turned on remotely. Additionally, you may program timers and schedules to automatically switch on and off your gadgets. 

You may have lights turned on routinely at specific times of the day with smart switches and a few additional smart devices, and you can even use a smartphone app to operate your household appliances. All of your home's Internet of Things (IoT) equipment, including your speakers, TVs, cameras that enable you to monitor what's happening at home while you're away, lighting, heating, and cooling units, can be controlled from a smartphone or computer.

You may be interested in >> Top 10 Best Smart Light Switch in 2022

How does it work? Smart light switch vs. smart light bulbs

Smart light switches follow fundamental connecting procedures that deal with wireless technology. The switches are usually part of a smart home light system controlled by a switch panel.

To install smart switches, you don't require smart bulbs. The real convenience of smart switches lies in this. They enable lighting to be connected without requiring bulb replacement, allowing you to operate them remotely from your phone, using voice assistants like Alexa and Siri, or through programming, automation to turn on the lights at dusk. This function is handy when light fixtures are placed in difficult-to-reach places, making bulb replacement difficult. Because they may turn on additional outlets that are connected to various appliances, smart switches are also helpful. In addition to controlling lights remotely, this can also allow you to control other devices. Learn more in Buyer's guide to smart light switches vs smart light bulbs.

Most smart switches are compatible with regular light bulbs. However, it would be best if you examined the packing. Switches explicitly made for smart light bulb manufacturers' products are available. For instance, Philips makes a special switch that can remotely connect to every Hue lamp in the house.

smart light switch

Smart switches are typically less expensive than smart lighting. There are undoubtedly affordable smart lights available, and the most luxurious smart switches can cost upwards of $100. Higher-end smart switches frequently come equipped with speakers and microphones that can be used with voice assistants like Alexa.

In contrast, a basic smart switch may be purchased for $10, while good smart bulbs typically cost between $20 and $40. The size of that gap will largely depend on your financial situation. For the color that smart lights offer, spending a little more money might be worthwhile.

Smart switches and smart lights are more comparable in terms of software. Manufacturers frequently have product families that can all be managed from a single app. Even if you use a variety of brands, Google Home and Apple Home third-party support is widespread enough that you can manage all of your smart home technology from one location. 

Types of smart light switches by protocols

There is a wide range of smart light switches available, which can be differentiated on the basis of the protocol they use while operating. The most prominent protocols used by smart light switches these days are:

  • Zigbee
  • Z-Wave
  • Z-Wave Long Range
  • Bluetooth Low Energy (BLE)
  • Wi-Fi
  • Thread
  • HomeKit
  • DotDot
  • Sidewalk

Zigbee is a wireless open standard protocol created to enable communication between IoT devices. Given that Z-Wave and Zigbee are two of the most widely used heterogeneous network protocols for smart homes, comparisons between them are only inevitable. Additionally, Zigbee and Z-Wave use 128-bit A.E.S. encryption, making them both highly secure. There are some notable changes, though.

HomeKit is a patented smart home framework created by Apple that allows users of iPhones, HomePod smart speakers, and other Apple products to control HomeKit-compatible smart home appliances.

Another standard that is under the C.S.A. is DotDot. It is a layer that enables communication between IoT devices and is made to sit on top of communication standards. So even if one device links to a hub via Zigbee and the other uses Wi-Fi, two devices that support DotDot will be able to interact. These protocols can be effectively used to operate 3-way dimmable light switches, two pole smart light switches, and so on.

smart light switch

Our Recommendation: Evvr In-Wall Relay Switch

The In-Wall Relay Switch by Evvr, also known as IRS (short for In-Wall Relay Switch), is made up of two modules: the Smart Relay and the Smart Switch Sub-Assembly.

Smart Relay uses Zigbee wireless technology when utilizing various loads, such as incandescent lamps, halogen lamps, LED lamps, and fluorescent lamps. It can be put inside the light fixture box because of its compact size. This device is compatible with conventional Zigbee 3.0 gateways or devices for remote control and inter-operation.

smart light switch

When utilized in conjunction with the In-Wall Relay Switch, the Smart Switch Sub-Assembly is an additional feature. Mechanical switch panels can operate with switch directions from the Zigbee network thanks to the Smart Switch Sub-Assembly. For instance, after switching off the lights with a conventional switch panel, you can turn them back on using Zigbee network commands.

A single or series Smart Switch Sub-Assembly can be connected to a single Smart Relay (multiple-point control).

Two circuits of loads can be linked to one Smart Switch Sub-Assembly, but each circuit must use a separate Smart Relay.


  • Support for both wired and wireless control.
  • It is possible to use a single switch to control many products through wire or multiple switches to control one product through the wire, and the cost of wiring is less than it would be using the traditional method.
  • The switch module is now smaller when the split type is adopted, allowing it to be installed in different kinds of electrical boxes. 

The patented, distinctive design eliminates safety concerns associated with other smart relay switch products, such as electric leakage during installation and light flickering when used with low-wattage light bulbs. It also enables it to work with the most energy-efficient light bulbs. In-Wall Relay Switches don't require a neutral wire, therefore they can be used in any home, including older ones without one. Evvr can offer you a comprehensive smart home solution whether you are an integrator, professional installer, distributor, or DIYer. Get in touch with us and book a sample product today!


In spite of all the doubts of adopting a new system, smart light switches are indeed about to become the new norm and hence need to be normalized as soon as possible. Evvr is doing an excellent job in developing smart home equipment and the products are also pocket-friendly. Hence proper exploration of such technology can ultimately lead you to a better home experience and can change the way we view convenience in general.

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