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via cnet.com Ry Crist Sept. 15, 2019 5:00 a.m. PT
And maybe you should! There's a lot to be said for a whole-home connected lighting setup, including benefits like automated vacation-mode lighting that helps make it look like you're home when you're not, the fun novelty of color-changing bulbs, and the convenience of turning off all of the lights your kids left on with a single voice command as you go to bed.
But before you fill that shopping cart, you'll want to understand the ins and outs of to make sure you're getting the best bulbs and switches for your smart home. To that end, here's a rundown of what you'll want to know before buying in.
The first question worth thinking about before you buy smart lights: Which platform do you want to use to control them? Most options offer their own control apps that let you group lights together and schedule them to turn on and off at specific times -- but there's a pretty decent chance that you'll want to smarten up more than just your lights.
If that's the case, then you'll want to consider a wider smart home platform that can handle all of the different devices you might end up using.
Pairing smart lights with voice assistants is one of the most popular ways to do it. Whether it's the Google Assistant, Apple's Siri, or Amazon's Alexa, each makes for a capable connected home control point, particularly if you're willing to put a or a somewhere central in your home. If you've got one of those, adding in lights that your assistant of choice can control is almost a no-brainer, and you'll be able to use them alongside things like cameras, thermostats, and smart security systems.
Smart lights use wireless transmissions to send and receive their signals, and different bulbs use different methods to get the job done. Some use built-in Wi-Fi radios to connect directly with your router, which lets you control them remotely wherever you have an internet connection. Others use Bluetooth radios to connect directly with your phone when you're within 50 feet or so. To control bulbs like that from further away, you'll need a Wi-Fi hub to relay their signals to your router and on to you via the cloud.
And then there's Zigbee, which you can think of as a local wireless network for your smart home gadgets. Lots of smart lighting products use Zigbee to send their signals -- if so, then you'll need a Zigbee hub plugged into your router in order to translate those signals for your home network. Most Zigbee bulbs offer their own version of a hub, and setting them up typically isn't complicated at all, but it does add a little extra expense into the equation.
All of that said, things are getting easier. The most notable Zigbee brand, Philips Hue, recently started putting secondary Bluetooth radios into its products, which lets you skip the hub and connect direct with your phone for basic controls. You'll also find a number of smart home gadgets that double as a Zigbee hub -- most notably the and . Both of those can translate those Zigbee smart bulb signals into something your Wi-Fi router can understand.
They cost less than you think
It wasn't that long ago that some people were paying $20 or even $50 per bulb just to get regular, nonconnected LED lights into their home. The math made sense -- your average LED will add about a buck to your energy bill each year, compared to about $7 per year for a comparable incandescent. That means a single LED will save you about $6 per year over an old-fashioned bulb like that -- and since LEDs are designed to shine for decades, paying dozens of dollars for one upfront was a sensible long-term investment.
Then, in 2014,and market-moving government subsidies spurred the industry into action, which led to lots of new options in the lighting aisle. The new competition helped to bring prices down, while the demand from consumers incentivized the industry to keep innovating.
The result: LED bulbs that kept getting better and cheaper. And no, shouldn't change that reality -- the lighting industry has already moved us into the LED age, and there's no sign that it's interested in reversing course.
, including great picks from names like , and that you can get for less than $15 per bulb. Meanwhile, a decent smart light switch doesn't need to set you back any more than $30 or so. Even fancy color-changing bulbs , with well-tested options from reputable brands like GE available .
They can help you get a better night's rest
Your brain is pretty sensitive to light, . When it's dark for a while, our brain tells us we're tired and that we should go to bed. When the sun comes up and it gets bright again, our brain senses it and tells us it's time to wake up.
Smart lights by simulating a nice, slow sunrise to help ease you out of bed on an early morning. Personally, I also have an easier time falling asleep when I set my bedroom's smart lights to a low setting, then tell them to fade out slowly over 20 minutes.
are a good bet for use cases like this, because allows you to trigger a customized fade with something like a voice command. Philips Hue is a good pick, too, since its bulbs can in the morning. Just turn the feature on, set an alarm with the Assistant, and your bulbs of choice will slowly begin to fade up 30 minutes before it goes off.
Not just bulbs -- consider switches and plugs, too
If you're shopping for smart lights, you'll find the most options (and, for the most part, the lowest prices) by sticking with smart bulbs. That said, you should definitely .
On the plug front, you'll find that can automate anything you plug in behind them. Use one with a lamp, and you'll be able to automate it to turn on and off whenever you want or by using voice commands, all while using whatever bulb you like. Smart plugs are also a great fit for alternatives like decorative string lights.
As for smart light switches, they're easier to install than you might think, and can save you money if you have a whole bunch of light bulbs wired to a single switch. Another smart switch benefit -- your automations and voice controls will continue to work .
And hey, speaking of switches...
Smart bulbs don't work well with dimmer switches
At least not with old-fashioned ones. Smart bulbs come with their own, built-in dimming mechanisms, so when you use one in a fixture that's wired to a dimmer switch, the dual dimming mechanisms can clash, often causing the bulb to strobe unexpectedly as you dim it up and down.
The good news is that those built-in dimming capabilities are typically excellent, with smooth, precise brightness controls that won't flicker or buzz like you often see with dumb bulbs and traditional dimming controls. Just don't use them in a light fixture that already has its own dimmer and you'll be fine.
One other note -- we're seeing . Switches like those will give you old-fashioned, physical dimming controls at the wall that won't screw with your bulbs (or render them unreachable when you flip the switch off). An extra investment, for sure, but potentially worthwhile.
Different bulbs dim differently
While we're on the subject of dimming, it's worth noting that . That's because the human eye perceives brightness changes logarithmically, which is to say that you need a bigger drop in lumens when things are really bright in order to notice an actual change.
Some bulbs, like ones from Philips Hue and Lifx, account for this by using a logarithmic dimming curve that drops the light a little faster in the top half of the bulb's dimmable range (the 70% setting might actually give you 50% of the total lumen output, for instance). Other bulbs, like TP-Link Kasa LEDs, skip that approach and instead use a linear dimming curve that sticks to the specific percentage you're setting things to as you dim up and down. Dim a bulb like that to the 70% setting, and you'll get 70% of the bulb's total lumen output.
The noticeable difference between the two approaches is that you'll see more differentiation from setting to setting in the top half of the bulb's dimmable range if you're using a logarithmic bulb. Then, things flatten out in the bottom 20% or so.
With a bulb that dims in linear fashion, you won't see as much of a difference between settings in the top half of the bulb's dimmable range because the light isn't dropping fast enough to account for the way our eyes work. That said, you'll definitely see more of a difference between those low-light settings. Neither approach is perfect, but if you're a stickler for dimming, .