It’s a cinch to switch off your lights when you install smart technology
Smart lighting installation requires a neutral wire in most cases, so check your home's wiring before purchasing switches if your house was built before 1985.
Basic smart switches cost $20 to $100 for DIY installation, making this an affordable upgrade that adds convenience, security, and energy savings to your home.
You need to turn off power at the breaker box and test with a multimeter before disconnecting any wires to keep yourself safe during the switch installation.
Hiring a local electrical professional removes the risk of shocks or electrical fires, especially when dealing with three-way switches or homes without existing neutral wiring.
When you’re sitting comfy on the couch and want to create a cinema-style atmosphere, nothing beats being able to stay where you are and dim the lights at the touch of a button. Installing smart light switches in your home is a relatively inexpensive swap and, with some extra electrical know-how, one that savvy DIYers can tackle.
If you want the convenience and extra security of controlling your lights from any location, read on to learn how to install a smart light switch safely and swiftly.
Home automation and associated smart technology are constantly advancing in sophistication and popularity. A WiFi-connected smart light switch is a beneficial bit of home tech that won’t break the bank. These allow you to remotely control your lights through a phone app or voice assistant, like Alexa. Some benefits of smart light switches include the following:
Energy-saving: If you’re looking for ways to reduce your energy bill, smart light switches can help. You can set lights on a timer and flick the switches remotely if your kids forget to turn the lights off when they leave the house or go to bed.
Security: The ability to set your lights on a timer and turn them on from a remote location is a great way to help protect your home from robbery.
Convenience: It is a handy luxury to turn switches on or off or dim them through voice activation or from your phone without moving from your work desk or bed.
Before you take the plunge with purchasing your smart switches, there are a few things to consider.
Wired smart switches are the usual go-to. They work like a normal light switch and are hooked up directly to your home’s electrics. However, you’ll need some electrical know-how to install them yourself.
Wireless smart switches are battery-operated options that you simply stick or screw onto a wall, and they still connect to your Wifi and apps. However, these aren’t widely available and typically have to pair with already installed compatible light bulbs or existing smart switches.
Do you already use smart technology in your home? Check the smart switches are compatible with your existing devices and voice assistants.
How high-tech do you want your smart light switch to be? The more features the switch has, the more it will cost. Weigh up which of the following you want:
Timer: Do you want to be able to program your lights to go on and off at certain times
Activation: Do you want to be able to control your switches from the wall panel, an app, and voice-assisted technology, or are just a couple of these options enough?
Dimmers: Some smart light switches have the ability to dim rather than just turn on and off. If you opt for this feature, make sure the bulbs you pick allow for dimming.
Many smart light switches need a neutral wire to connect to. If your home is modern, built after 1985, neutral wiring is likely already in place. For older homes, you’ll need to check—in the US, they are white or gray. If there isn’t neutral wiring, you’ll either have to get an electrician to install it or select smart switches that don’t need neutral wiring for installation.
Single-pole light switches control the power to the bulb from a single switch. If you can control the light from two switches (common in hallways), it operates on a three-way switch system. This type of electrical switch requires different wiring (you need an additional traveler wire), and you’ll need to pick a smart multi-switch system that will work for this setup.
Follow these steps if you are installing a wired, single-pole smart light switch. And don’t forget to check the manufacturer's instructions for design variations.
Go to your breaker box and flip the switch to turn off the power to the circuit that connects to your installed light switch.
Just in case there is any breaker mislabelling, test the switch using a multimeter to ensure there is no voltage. Remove the existing switch wall plate using a screwdriver (usually a flathead variety).
Carefully disconnect the existing switch from the wires making up the circuit. Single-pole switches typically attach to three color-coded electrical wires (the black load wire, white neutral wire, and copper ground wire). Sometimes, the wires are tightly coiled together, and you might have to loosen them with specific wire-twisting pliers.
Check for any damage to the wires. Have a flashlight handy for this job if the lighting isn’t great. If you spot frayed ends, trim them away with wire cutters to ensure a good connection. For serious damage, like rodent biting or scorch marks, put down the tools and call a local electrician for a further electrical inspection.
For any wires you did a bit of trimming on, use wire strippers to peel away around half an inch of insulation to leave adequate bare wire exposed.
You’re now ready to connect the new smart switch to the wires. Carefully connect each wire, securing them with wire connectors. To avoid any mix-ups or loose connections, follow the steps below:
Create a U-hook shape at the end of each exposed wire.
Wrap the black load wire around the brass terminal screw on the right side in a clockwise direction.
Wrap the white neutral wire around the same terminal.
Wrap the green or copper ground wire around the matching ground terminal screw on the left side.
Use a screwdriver to tighten the screws to secure the wires fully.
You don’t want the wires to bend awkwardly inside the box. To prevent this, wrap electrical tape around the switch's body, fully shielding the terminals. Gently tuck the wires into the switch box—even if it’s a tight fit, don’t be tempted to force them in—and, if you’re sure the wires are neatly fitting inside, screw the switch into place.
Secure the switch wall plate in place with the screws provided for a neat finish. If you use a custom wall plate to match your decor, steer clear of metal ones, as they can interfere with the smart light switch WiFi signal.
Now comes the moment of truth. If you’ve done everything correctly, the light should come on when you press the switch after turning the power back on at the breaker box. Don’t panic if it doesn’t work the first time—it could just be a loose connection. Turn the power off again at the breaker box and double-check you connected all the wires correctly and securely.
If you still can’t get the new smart switch to work, contact an electrician to help you solve the problem.
Now’s the time you can let technology take over. Check the manufacturer's instructions hooking your smart light switch up to the brand app to get connected to WiFi and voice-assisted technology. You’ll usually have to download the app, create an account, and enter your WiFi details.
Feeling nervous about the task ahead? If you don’t have solid electrical know-how or are unsure, let a certified electrician tackle this task. But, even if you're confident with electrics, prevent the risk of shocks or fire by running through a recap of the safety basics:
Wear rubber electrical gloves and rubber-soled shoes.
ALWAYS turn off the power before installing smart light switches.
Use a circuit voltage tester to ensure no power is running through the circuit you are working on.
Don’t have liquids near your work zone.
Keep a flashlight to hand—you don’t want to go wrong with rewiring because you can’t properly see what you’re doing.
Keep kids, kitties, and canines away while you work.
Have a fire extinguisher nearby as an extra precaution when testing the connection.
Use the right tools. Don’t try to cut wires with scissors. You’ll need needlenose pliers, wire cutters, and wire strippers.
Don’t try to install a smart light switch if wires are visibly damaged, scorched, or smoking. Call out a licensed electrician to prevent fire or shock risk.
While installing smart light switches is something discerning DIYers should be able to tackle, because it involves handling wiring, it’s better to hire a licensed electrician near you if you don’t have the know-how or confidence. That way, you eliminate any risk of worst-case-scenario shocks or electrical fires. You might also want to call in the pros if you don’t already have neutral wiring, there are signs of electrical problems, or you’re installing a three- or four-way switch.
The cost to install a light switch featuring smart technology yourself is typically between $20 and $100, depending on the brand and switch features. The additional cost to hire an electrician typically ranges from $85 to $200, but it’s money well spent if it offers peace of mind.
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