Outdoor Smart Plugs That Survive December. Lights, Projectors, and Pond Heaters on One Schedule.

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December is the month outdoor smart plugs sell out, and the mistake arriving on every return pallet is the same one: an indoor plug inside a ziplock bag under the porch light. Indoor plugs are not sealed, cold kills their ratings, and “the bag” is how a schedule turns into a scorch mark. Real outdoor plugs carry an IP64-plus rating and cost about the same as one strand of mid-tier RGB lights. I compared the current listings on the two systems I run, plus the alternatives worth checking, for lights, inflatables, projectors, and the pond heater nobody schedules.

House exterior decorated with green and red Christmas string lights at night
One scheduled plug beats four trips out to the breaker.

Here is what the current prices and specs say.


Kasa Outdoor Smart Plug KP400 — The Two-Outlet Workhorse

Kasa KP400 outdoor smart plug with two independently controlled sockets

The Kasa KP400 is the default answer: two sockets controlled independently in the app, IP64 weather rating, works with Alexa and Google out loud. Live price: about $17, which is absurd value in this category. Honest con: the away mode needs real setup — make an actual schedule for each socket or it just sits there like a dumb outlet with Wi-Fi.

My take: Buy this first for the porch-and-lights job: two controlled circuits for the price of one strand of premium lights.

Kasa Outdoor Smart Plug EP40 — The Second Two-Socket Option

Kasa EP40 outdoor smart plug with two sockets

The Kasa EP40 is the other 2-socket outdoor unit in the Kasa app, IP-rated and voice-ready, at about $35 today. Honest math: it costs double the KP400 for the same two-socket design in different packaging, so the EP40 only makes sense when a deal week puts it under the KP400 or you want the plug Kasa built for higher-draw setups. Check the price before you check out.

My take: A fine plug at the wrong price today; the KP400 does the December job, and the EP40 is the buy on its inevitable discount week.

Govee Outdoor Smart Plug — The Schedule-First Alternative

Govee’s outdoor plug lineup competes on price and pairs cleanly with the Govee light ecosystem if your strings are already Govee. Honest con: outdoor IP ratings vary by model in Govee’s line — verify the specific listing says IP64 or better for outdoor use before buying, and expect the app to be busier than Kasa’s.

My take: The right brand if you run Govee lights; the wrong one if the schedule has to survive a power blip you cannot debug from work.

Wyze Outdoor Smart Plug — The Budget Two-Pack

Wyze’s outdoor plug two-packs historically price two for the cost of one Kasa unit, which is how whole-yard setups happen cheap. Honest cons: heavier cloud dependence than Kasa, a rougher app experience, and no local scheduling when the internet drops — the failure mode the porch does not forgive in January.

My take: Fine for the two inflatable outlets when the price wins, but I do not put cloud-dependent plugs on the pond heater circuit.

Smart-home gear is at its cheapest during winter deal weeks; a Prime trial keeps shipping free too. Start a free 30-day Prime trial so the box lands fast and shipping reads zero. (CleverHomeClub earns a small commission at no extra cost to you.)

What Actually Saves Money (And What Doesn’t)

Schedules beat always-on: string lights scheduled 5 pm to 11 pm use about half the electricity of always-on, and inflatables on a timer stop running at 2 am for nobody. The 1,800-watt ceiling: a standard outdoor circuit supports roughly 1,800 watts of continuous load; light strings never approach it, but pond heaters, heat tape and bigger inflatables stack up fast — one high-draw device per socket is the safe rule. Weatherproof rating is the whole decision: IP64 or better, period; the $4 saved on a mystery rating costs a breaker trip. “Works with Alexa” plugs the bulb you already own: voice control is fine, but the schedule does the saving.

The Renter Reality — Two Schedules I Actually Run

None of this touches wiring, which is why outdoor smart plugs are the most renter-friendly outdoor automation there is: no landlord conversation, no breaker work, and moving day is one unscrew. My own two recipes: the porch schedule (KP400 socket A runs the wreath and strings 4:30 to 11 pm while socket B runs the projector only on movie nights), and the cold-weather schedule (pond heater on a dawn block and an evening block, never the overnight coast). Both live on one app screen and neither touches a screwdriver. Before December first: test the GFCI outlet the plug will live in, retire daisy-chained light strings because series strings overload right at the plug, and confirm what each socket carries before adding the second strand.

The December Math

A 150-watt pond heater left on 24 hours uses about 3.6 kWh a day — roughly $15 a month at typical rates; scheduling it six hours a night cuts that to under $4. Two KP400s run about $35 total and schedule every circuit on the porch, and December lights on a fixed 6-hour schedule run about $1 to $2 a month per 1,000 LED bulbs. The plug pays for itself before the tree comes down.

Keep reading: read your winter utility bill like a smart-home owner, and the smart stocking stuffers under $35 that actually get used.

CleverHomeClub is reader-supported. As an Amazon Associate, I earn from qualifying purchases. That means if you buy through one of the links above, I get a small commission at no extra cost to you. I only recommend devices I’d run in my own home.

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Frequently Asked Questions

Can you use indoor smart plugs outside in winter?

No. Indoor plugs have no weather sealing and most are not rated for freezing temperatures, and the ziplock-bag trick does not fix either problem. Use a plug with an IP64 rating or better for anything under the porch, in the yard, or anywhere snow reaches it.

How many Christmas lights can one outdoor smart plug handle?

A standard outdoor circuit tops out around 1,800 watts of continuous load, and typical LED strands draw so little that light strings never approach it. Pond heaters, heat tape and large inflatables are what stack up — keep one high-draw device per socket and schedule the rest.

Do outdoor smart plugs work in freezing temperatures?

Yes, if they are truly outdoor-rated. Models like the Kasa KP400 and EP40 are built for cold and wet weather, but ratings vary by model across brands — check both the IP rating and the operating temperature range on the specific listing before you buy.

Do scheduled outdoor lights actually save money?

Yes. Cutting string lights from all night to a six-hour evening schedule uses about a quarter of the electricity, and a 150-watt pond heater scheduled to six hours a night drops from roughly $15 a month to under $4. The schedule does the saving, not the voice control.

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