Best Smart Outdoor Plugs for String Lights 2026
String lights are the single easiest upgrade you can make to a patio, but running inside every night to unplug them gets old fast. A smart outdoor plug solves this without rewiring a thing.
The options range from dead-simple mechanical timers to fully app-controlled smart plugs that track sunrise and sunset times and adjust automatically as the seasons change. You do not need a hub or a full smart home ecosystem to get real value here.
These are the five that hold up outdoors through rain and humidity, actually work with voice assistants, and do not require a computer science degree to configure.
Best Overall Smart Plug for String Lights
The Kasa Smart Outdoor Plug EP40 is what most people should buy. It has two independently controlled outlets, a compact housing that does not block the second socket on a standard outdoor outlet, and a solid IP64 weatherproof rating. On a covered porch or pergola, this handles years of use without complaint.
The Kasa app lets you schedule by exact time or by sunrise and sunset offset. You can tell it to turn on 30 minutes after sunset and off at 11 PM, and it recalculates that every day based on your location. So your lights come on at the right time in June and in December without you touching anything.
For a 10x12 patio with two strands of string lights running on different circuits, one EP40 covers both. The two outlets are truly independent, so you can put the lights on a schedule and leave the other outlet always-on for a small fan or speaker.
Kasa Smart Outdoor Plug EP40 (TP-Link)
$22
38,000+ reviews
Dual independent outlets, IP64 weatherproofing, and sunset scheduling that recalculates daily make this the easiest all-around outdoor smart plug you can buy.
Shop on Amazon →Best Smart Plug for Apple HomeKit Users
If your home runs on Apple HomeKit, the Meross Smart Outdoor Plug MSS620 is worth the small premium. It supports HomeKit natively, meaning you control it from the Home app, build automations based on time or your location, and drop it into scenes with other smart devices. No third-party workaround needed.
Setup is a QR code scan away. Once it is in your Home app, you create an automation that turns your pergola string lights on at sunset and off at a set bedtime. If you use Siri regularly, saying 'Hey Siri, turn on the patio lights' just works the way it should.
The MSS620 also supports Alexa and Google, so it is not locked in if your household is mixed. The IP55 rating is fine for a covered porch or most shaded patio setups. For a fully exposed install in a wet climate, the Kasa EP40 carries a slightly stronger IP64 rating.
Meross Smart Outdoor Plug MSS620
$29
8,500+ reviews
Native Apple HomeKit support paired with Alexa and Google compatibility makes this the rare outdoor plug that works seamlessly across every major voice platform.
Shop on Amazon →Best Budget Smart Plug Under $20
The Treatlife Outdoor Smart Plug DS08 does everything the more expensive options do for a lot less. Two independently controlled outlets, scheduling by exact time or by sunrise and sunset, and full Alexa and Google compatibility. The app is clean and setup takes about three minutes.
This is a great call for a guest house, a garage patio, or a second outdoor space where you want automation without spending much. The IP44 rating handles splashing and light rain fine, though a fully exposed install in a very wet region might want something with a higher rating.
For a balcony or a small side porch with a single string light run, it is hard to beat this for the price. If you want plugs across multiple outdoor zones, buying two of these costs less than one premium unit and covers more of your property.
Treatlife Outdoor Smart Plug DS08
$17
6,200+ reviews
Two independent outlets, sunrise and sunset scheduling, and Alexa plus Google support at a price point that makes buying multiples easy.
Shop on Amazon →Best for Heavy-Duty Mixed Outdoor Setups
Most string light plug discussions ignore the fact that plenty of patios run more than just lights off a single outdoor outlet. If you also have a small space heater, a fan, or a fountain plugged in nearby, you need something rated for a heavier load. The BN-LINK Smart WiFi Heavy Duty Outdoor Plug handles up to 15 amps per outlet and has a build that feels noticeably sturdier than the smaller plugs.
It runs two outlets on a shared control, which works fine if you want everything on the same schedule. The app covers time-based scheduling and has countdown and count-up timer modes that come in handy when you want something like 'turn off two hours after I flip it on.' Alexa and Google both work as expected.
The housing is larger than most, so check your outlet box before ordering. On a standard outdoor GFCI outlet with a while-in-use cover, it fits without problem. IP44 weatherproofing is solid for covered patio use and handles a typical rainy season without issue.
BN-LINK Smart WiFi Heavy Duty Outdoor Plug
$21
4,800+ reviews
15-amp rated outlets with countdown timer modes make this the right pick when you are running more than just string lights off one outdoor circuit.
Shop on Amazon →Best No-Wi-Fi Timer for Simple Setups
Not everyone wants another device on their home network or another app on their phone. The Dewenwils Outdoor Plug-in Timer HTDT01 is a 7-day programmable digital timer that does its job without any internet connection. You set the on and off times directly on the unit using physical buttons, and it runs on its own from that point forward.
This is the right pick for a seasonal setup, a cabin, or a rental property where a smart home system is not practical. You can program different schedules for weekdays versus weekends, and it holds its programming through brief power outages. The IP44 weatherproof rating covers typical covered-porch use across all four seasons.
If you have one string of lights you want on at 7 PM and off at midnight every night, this is the least complicated way to make that happen. No subscription, no app updates, no hub. Set it once and forget it until the clocks change.
Dewenwils Outdoor Plug-in Timer HTDT01
$14
5,100+ reviews
A 7-day programmable digital timer with no Wi-Fi required. Perfect for seasonal setups or anyone who wants reliable scheduling without connecting anything to a smart home.
Shop on Amazon →Quick Tips for Outdoor Plug and Timer Setup
- Add up your total wattage before buying. Most outdoor smart plugs are rated for 10 to 15 amps. LED string lights draw very little power, but if you are also running a heater or fountain off the same outlet, check the combined wattage against the plug's rated limit.
- Use sunset offset scheduling instead of fixed clock times. Sunset shifts by 30 to 45 minutes between summer and winter. Setting your lights to turn on at sunset minus 10 minutes means they come on right as it gets dark year-round without any seasonal adjustments from you.
- Always plug into a GFCI outlet outdoors. Outdoor outlets should already be GFCI protected by code, but verify before plugging in any smart device. GFCI protection is what keeps moisture-related faults from becoming a real hazard.
- Use a while-in-use weatherproof cover on your outlet box. IP ratings cover rain, but UV exposure breaks down plastic housings over time. A while-in-use cover keeps direct sun off the plug body and extends the lifespan of any outdoor smart plug significantly.
- Name your plugs by location in the app. If you have multiple zones, call them 'front porch lights' and 'pergola lights' rather than generic names. Specific names make voice commands much more reliable and scheduling a lot less confusing.
Frequently Asked Questions
Are outdoor smart plugs safe to leave out in the rain?
Yes, if the plug is rated IP44 or higher. IP44 protects against water splashing from any direction, which covers most rain situations on a patio or porch. For plugs fully exposed to direct driving rain, look for IP65 or use a while-in-use weatherproof outlet cover to add a layer of protection.
Do outdoor smart plugs still run schedules when the internet goes out?
Most do. Once a schedule is saved to the device, the plug runs it locally even without internet access. You lose remote control and voice commands during an outage, but the lights will still turn on and off at the programmed times.
How many string lights can I run off one outdoor smart plug outlet?
A 15-amp outlet can handle up to 1,800 watts. A standard 48-foot LED string light set draws roughly 20 to 40 watts, so you can safely run 10 or more strands on a single outlet. Incandescent string lights draw significantly more, so check the wattage printed on the box before chaining multiple strands.
Which outdoor smart plug works best with Alexa?
The Kasa EP40 and Treatlife DS08 both have strong Alexa integration and large user bases, which means the Alexa skills are well maintained. Setup takes about two minutes: add the plug to its app, enable the skill in the Alexa app, and discover devices.