There is no single best outdoor smart plug for every installation. The right choice depends on the plug’s weather-resistance rating, the load of the device you will control, your smart-home platform, and whether the connected plug and cord still fit under a weatherproof receptacle cover. Two specification-backed options to compare are TP-Link’s Tapo P400M, rated IP65 with Matter compatibility, and TP-Link’s Kasa EP40A, rated IP64 with two individually controlled outlets and a listed 15 A / 1,875 W total limit.
Those ratings describe the products, not a guarantee that any installation can be submerged or left exposed indefinitely. Outdoor receptacle protection, GFCI requirements, plug orientation, mounting height, and the exact regional model matter just as much. Use the guide below to match a model to your equipment and installation rather than treating a product label as a universal safety approval.
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At-a-glance comparison
The table separates published specifications from details that are not established on the cited product pages. “Not stated” means you should check the manual or regional listing before buying.
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| Model | Outdoor rating | Outlets and control | Maximum load | Smart-home support | Connection information | Important qualification |
|---|---|---|---|---|---|---|
| TP-Link Tapo P400M | IP65 | Two outlets; whether each is independently switchable is not stated on the cited specification | Not stated on the cited specification | Matter compatibility and voice control through major assistants are listed | Described as an outdoor Wi-Fi smart plug; hub requirement not stated | Manufacturer specifications, not independent reliability testing |
| TP-Link Kasa EP40A | IP64 | Two outlets operated individually | 15 A / 1,875 W total at 125 V, 60 Hz | Apple Home, Alexa, Google Assistant, and Samsung SmartThings are listed | Confirm the exact regional app and network requirements; hub requirement is not stated | The 15 A / 1,875 W figure is a combined total, not a per-outlet allowance |
Neither model should be called the cheapest, best value, or a hands-on-tested winner on the evidence available here. Availability, pricing, regional variants, and current software support can change, so verify the listing for the exact model sold in your country.
#1 Best Overall
- LONG WI-FI RANGE AND IP64: Long Wi-Fi range up to 300 feet with IP64 weather resistance, protecting against dust and splashes of water. Waterproof cover is attached to protect it from dirt when not in use. Supports up to 15A/1875W.
- VOICE AND REMOTE CONTROL: Control outdoor devices hands-free with Alexa or Google Assistant, or turn them on and off from anywhere using the Kasa app.
- EASY SETUP AND USE: 2.4GHz Wi-Fi connection required. Plug in, open the Kasa app, follow the simple instructions and enjoy the wifi smart plug. For landscape lighting, swimming pool pumps, holiday lights, or other appliances.
- SCHEDULING: Use schedules or countdown timer to set your smart plug to automatically turn on and off at the time you want. Sunset/sunrise offset makes it even smarter to act according to the real daytime.
Which outdoor smart plug fits your use?
Choose the Tapo P400M when Matter is central to your setup
The P400M is the more obvious candidate if you want a Matter-capable outdoor plug. TP-Link describes it as an outdoor Wi-Fi smart plug with an IP65 rating, two outlets, and voice control through major assistants. Matter can be useful when you want a device to participate in a compatible multi-brand smart-home platform instead of being tied only to one manufacturer’s app.
Do not infer that Matter support makes the plug universally compatible. Matter controller, platform, firmware, account, and regional support still have to line up. Check the current Tapo page and the manual for the model suffix sold where you live. The cited specification does not establish independent weather or reliability testing, a maximum load figure, or whether the two outlets can be switched separately.
Choose the Kasa EP40A when independent outlet control and a known load limit matter
The EP40A is easier to evaluate for installations where you need two connected devices to be scheduled separately. Its two outlets are listed as individually controllable, and TP-Link publishes a total maximum of 15 A / 1,875 W at 125 V and 60 Hz. That makes it possible to plan around a stated electrical limit instead of guessing.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsKasa lists Apple Home, Alexa, Google Assistant, and Samsung SmartThings compatibility for the EP40A. Its outdoor rating is IP64, and the product is listed as ETL certified. Treat the 15 A / 1,875 W number as the combined limit for both outlets. It does not mean that each outlet may independently draw 15 A at the same time.
When neither specification is enough
If your appliance has a motor, heating element, pump, compressor, or a high start-up surge, the nameplate running wattage alone may not be sufficient. Look for the device’s running current, starting current, and any manufacturer restriction on timer or smart-plug use. If the smart-plug documentation does not state that type of load is supported, ask a qualified electrician or the manufacturer rather than assuming the outlet rating covers it.
What IP64 and IP65 actually tell you
An IP code is a product-specific enclosure rating. The first digit concerns solid-particle protection and the second concerns water exposure under defined test conditions. IP65 and IP64 are not interchangeable labels, and neither means the plug can be submerged, buried, sprayed from every direction, or left in standing water.
Rank #2
- Individual Control of 2 IN 1 Outlets: 2 AC outlets are working and controlled independently.15A/1875W Max for each. Waterproof cover is attached to protect it from dirt when not in use. Long Wi-Fi range up to 300 feet with IP64 weather resistance. Group your Kasa Smart light bulbs, plugs and switches for seamless control. Ideal for controlling all your devices simultaneously with a single tap.
- Voice & Remote Control: Add voice control to any outdoor outlet. Enjoy the hands-free convenience of controlling any outdoor electronic appliances with your voice via Alexa or Google Home Assistant. Turn electronics on and off from anywhere with your smartphone using the Kasa app, whether you are at home, in the office or on vacation.
- Easy Set Up and Use: 2.4GHz Wi-Fi connection required. Plug in, open the Kasa app, follow the simple instructions and enjoy the wifi smart plug. Ideal for landscape lighting, swimming pool pumps, holiday lights, or other appliances.
- Scheduling: Use schedules or countdown timer to set your smart plug to automatically turn on and off at the time you want. Sunset/sunrise offset makes it even smarter to act according to the real daytime.
- Trusted and Reliable: Kasa is trusted by over 6 Million users and being the Reader’s Choice of PCMag 2020. 2-year warranty.
For these examples, TP-Link lists IP65 for the Tapo P400M and IP64 for the Kasa EP40A. The P400M’s higher water-protection digit is a specification difference, not proof that it will outperform the EP40A in a particular garden, patio, or poolside installation. Water can enter through a connected cord, an open socket, a damaged seal, condensation, or the receptacle behind the plug.
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- Inspect the housing, cord, and seals for cracks or deformation before every season of outdoor use.
- Do not use an IP rating as permission to immerse the device or wash it with a hose.
- Follow the model’s instructions for socket covers, cable routing, orientation, and mounting.
The receptacle cover is part of the installation
A smart plug’s enclosure does not replace the weatherproof enclosure required for the outdoor receptacle. OSHA’s electrical standard states: “A receptacle installed in a wet location where the product intended to be plugged into it is not attended while in use (for example, sprinkler system controllers, landscape lighting, and holiday lights) shall have an enclosure that is weatherproof with the attachment plug cap inserted or removed.”
This matters whenever an outdoor load can run unattended. A standard flip cover may close only when nothing is plugged in; if it cannot close around the smart plug and cord, moisture can reach the receptacle. The cover must be suitable for the receptacle, plug shape, cord direction, and local electrical requirements.
An extra-duty, weatherproof while-in-use cover can be relevant when an existing cover will not close with a plug inserted. Leviton describes its 5981-UCL as an extra-duty cover intended to protect against moisture, debris, insects, and outdoor elements. It is a category example, not a universal fit: confirm the box, receptacle orientation, cover depth, gasket, and local code before installing any replacement.
Electrical load: calculate before you connect anything
Use the total limit, not an attractive per-outlet assumption
For the EP40A, the published maximum is 15 A / 1,875 W total at 125 V and 60 Hz. If two devices are connected, add their expected running loads and leave appropriate headroom for start-up behavior and the circuit’s own limits. Two outlets do not automatically provide two separate 15 A supplies.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchThe P400M specification cited here does not state a maximum load. Do not borrow the EP40A figure for the P400M or infer a rating from the plug’s physical size. Find the exact P400M regional manual or label and compare its limit with the appliance nameplate.
Rank #3
- SMART UPGRADE: Amazon Basics Smart Outdoor Plug works with Alexa to add remote and voice control to traditional outdoor lightings and devices
- CONTROL FROM ANYWHERE: Schedule lights and outdoor electronic appliances to turn on and off automatically, or control them remotely when you’re away
- SIMPLE TO SET UP WITH ALEXA: Plug in the smart outdoor plug, open the Alexa app, and get started in minutes as you get notified “device found and connected”. Otherwise, you can add your outdoor plug directly from Alexa app. No hubs or 3rd party apps or skills required. For zero touch set up experience, check “Link device to your Amazon account to simplify setup” during checkout and get started with your smart outdoor plug in no time. Note: Amazon Basics smart outdoor plug work exclusively with Alexa to be set up with 2.4GHz Wi-Fi only.
- INDIVIDUAL CONTROL OR GROUPING: Includes 2 independently controllable outlets. Control each outlet individually by voice or remotely; or create groups in the Alexa app to combine devices together
- NO SMART HOME HUB REQUIRED: Set up routines and schedules through the Alexa app; 2.4GHz Wi-Fi required; works exclusively with Alexa
Account for motors, pumps, and heaters
Loads such as pumps, fans, compressors, and some lighting drivers can draw more current briefly when they start. Resistive heaters may draw a large continuous load. A device that appears below the wattage limit during normal operation can still trip a breaker, weld a relay, or overheat a connector if its inrush or duty cycle is unsuitable.
- Read the appliance label for volts, amps, and watts.
- Identify whether the load is resistive, inductive, electronic, or motor-driven.
- For two-outlet models, add both connected loads and compare the sum with the plug’s total rating.
- Check the circuit breaker, extension-cord rating, and receptacle rating as separate limits.
- Stop if the plug, cord, receptacle, or appliance becomes hot, discolored, noisy, or intermittently disconnected.
Smart-home compatibility and control
Matter and platform support are not the same question
The Tapo P400M is described as Matter compatible and supports voice control through major assistants. Matter support can simplify cross-platform setup, but the controller you own must support the relevant Matter device type and commissioning method. A platform update or regional model difference can change what is available, so verify current support before purchase.
The Kasa EP40A page lists Apple Home, Alexa, Google Assistant, and Samsung SmartThings. That list answers which ecosystems TP-Link identifies for the model; it does not guarantee identical features in each app. Scheduling, energy information, firmware updates, naming, and multi-device scenes can vary by platform.
Plan for the network where the receptacle is located
The P400M is explicitly described as a Wi-Fi smart plug. For the EP40A, confirm the network requirements in the current regional documentation. Outdoor walls, masonry, metal enclosures, distance from the router, and electrical equipment can weaken a wireless signal even when a manufacturer advertises an open-area range. A published range is a manufacturer claim, not a guarantee for an installed property.
Before permanently mounting a plug, pair it indoors or near the access point, update its firmware, and test it at the intended receptacle. If pairing succeeds only when the plug is close to the router, improve network coverage or move the access point rather than relying on repeated reconnects outdoors.
Physical fit: measure the plug, cover, and cord together
Outdoor receptacles vary in box depth, orientation, spacing, and cover style. A smart plug may work electrically yet fail mechanically because its body projects too far, the cord exits upward into the hinge, or a second outlet is blocked.
Rank #4
- 【Award-Winning Smart Plug】The Tapo P400M was named Best Outdoor Smart Plug by Wirecutter in 2026 for its independently controllable dual outlets, durable IP65 weather resistance, and response Matter compatibility, among other standout features.
- 【Matter: All-Round Compatibility】Matter devices work with any certified platform such as Apple Home, Alexa, Google Home & SmartThings.
- 【2 Independent Outlets】Two independent AC outlets allow you to control connected devices individually through your apps, Amazon Alexa, Apple Siri, or Google Assistant.
- 【Long-Range WiFi Coverage】With dual antennas, the outdoor plug's signal reaches up to 300 ft in an open field and transmits 164 ft through three concrete walls2, offering you stable connection over longer distances.
- 【IP65 Weatherproof】Works safely in the garden, patio, or backyard to power your outdoor devices. With outdoor temperature resistance of -4~122℉(-20~50℃), it withstands rain, snow, dust, and other harsh weather.
- Measure the receptacle box and the closed-cover clearance, not just the faceplate.
- Check whether the plug’s cord exits from the top, bottom, or side and where that places strain on the seal.
- Confirm that the cover can close with the plug inserted, as required for unattended wet-location loads.
- Leave enough clearance for the plug’s reset or pairing button and for safe removal.
- Do not stack adapters or use an indoor extension cord to solve a clearance problem.
If the cover cannot close, choose a properly fitted weatherproof while-in-use enclosure or have the receptacle and box evaluated by a qualified electrician. Do not defeat the cover, tape over a gap, or place the plug inside an unventilated container.
Installation procedure for an outdoor smart plug
1. Confirm the receptacle and circuit
Use an outdoor-rated receptacle protected as required by local rules. Feit Electric’s support guidance, dated September 9, 2024, states for its own smart outdoor plug: “The Smart Outdoor Plug must also be plugged into an outdoor-rated GFCI outlet with the appropriate outdoor cover.” That is manufacturer-specific advice, but it illustrates the protection to verify for any outdoor installation. Test the GFCI using its test and reset controls before connecting equipment.
2. Pair and update before mounting
Install the manufacturer’s app, add the exact model, apply available firmware, and confirm that manual on/off control works. If you are using Matter, complete the platform commissioning steps while the plug is accessible. Label each outlet in the app before attaching equipment so a later schedule cannot turn on the wrong load.
3. Secure the plug as the manual specifies
TP-Link’s EP40 user guide advises securing the plug with its supplied hardware, keeping the socket face down, placing it at least 12 inches above the ground, and covering unused sockets. These instructions apply to that model’s installation; do not transfer the 12-inch measurement to a different product without checking its manual.
4. Route the cord without creating a water path
Make a downward loop so water does not run along the cord into the receptacle or socket. Keep connectors off the ground and away from irrigation heads, drain outlets, snow piles, and locations where lawn equipment can strike them. Use only cords and accessories rated for the environment and load.
5. Test with the real load
Turn the appliance on and off manually, then run the intended schedule while watching for nuisance trips, loss of Wi-Fi, heat, buzzing, or unexpected restart behavior. Test both EP40A outlets separately if you use its independent controls. Recheck that the receptacle cover remains weatherproof with the plug inserted.
Best Value
- 【Designed Exclusively for Dimmable Lights】Enjoy your smart home outside with this weather-resistant smart dimmer. Remotely adjust the brightness of your outdoor dimmable lights with the Kasa app or use voice commands via Alexa or Google Assistant for hands-free control. [Lights must be dimmable in order to use dimmer function. 4 Amp maximum]
- 【IP64 WEATHER RESISTANCE & LONG-RANGE Wi-Fi】IP64 rating helps protect your plug against dust intrusion and splashes of water. The TP-Link based Kasa Smart plug will bring you more stable Wi-Fi connectivity with a longer coverage range of up to 300ft. 2.4GHz Wi-Fi only.
- 【GROUPING & SCHEDULING】You can group multiple dimmers and string lights to control them together at the same time via the Kasa app. Use schedules to switch your outdoor lighting on and off on a schedule to save energy and have total automation.
- 【EASY SET UP & USE】Plug in, open the Kasa app, follow the simple instructions and you will be up and running in no time. Ideal dimmable control for outdoor string lights, landscape lighting, holiday lights, 2.4GHz Wi-Fi connection required.
- 【TRUSTED & RELIABLE】IP64 water resistant, ETL certified, fire/heat resistant with UL94-V0 PC shell. Max Power: 300W Incandescent, 150W LED/CFL. 2-year warranty. Kasa is trusted by over 7 Million users and the 2020 Reader’s Choice Award Winner for Smart Plugs. Schedule your Plug-in Dimmers to turn on/off automatically at specified times or according to Sunrise/Sunset.
Common installation failures and fixes
The app cannot find the plug
- Move the plug near the router or access point for initial pairing.
- Confirm that the phone is using the network and account required by the model’s current app.
- Reset the plug exactly as the manual describes, then remove any duplicate device entry.
- After pairing, test at the outdoor location before final mounting; a weak signal may require better Wi-Fi coverage.
The GFCI trips repeatedly
Disconnect the load and reset the GFCI. Inspect for wet connectors, damaged insulation, overloaded circuits, and water inside the receptacle or plug. Reconnect one device at a time. If the GFCI trips with the smart plug empty and dry, stop using the installation and have the receptacle, wiring, or plug inspected.
The cover will not close
Do not force or defeat the cover. Check whether the plug is upside down, whether the cord exits into the hinge, and whether the cover is designed for an attachment plug to remain inserted. If the existing enclosure still cannot close, install a correctly sized extra-duty while-in-use cover or consult an electrician.
The appliance switches off but does not restart
Some equipment needs a manual reset after power loss or has a controller that does not resume automatically. Test the appliance after a short manual unplug/replug cycle before relying on a schedule. Smart-plug automation cannot override an appliance’s own safety lockout.
One outlet behaves differently from the other
On the EP40A, verify that each outlet is assigned and controlled separately in the app. A two-outlet product does not necessarily provide independent switching; the P400M specification cited here does not establish that feature. Check the model’s current manual rather than assuming both sockets have identical controls.
A practical buying checklist
- Identify the load: record voltage, running watts, amps, start-up behavior, and whether the device contains a motor, pump, heater, or compressor.
- Choose the control model: select Matter if your controller supports it, or confirm that the listed Apple Home, Alexa, Google Assistant, or SmartThings integration matches your home.
- Check the weather rating: compare the exact model’s IP code, but do not treat it as immersion protection or a substitute for a weatherproof receptacle enclosure.
- Check outlet behavior: decide whether you need one outlet, two outlets, or independent control of two loads.
- Verify the electrical limit: for the EP40A, keep the combined load within 15 A / 1,875 W at 125 V, 60 Hz; obtain the exact limit for any other model.
- Measure the installation: confirm box depth, cover clearance, cord direction, mounting space, and access to buttons.
- Confirm protection: verify the outdoor receptacle, GFCI protection, weatherproof cover, and local code requirements.
- Test connectivity: pair, update, and operate the plug at the intended location before attaching an unattended appliance.
Bottom line for the two documented options
The Tapo P400M is the specification-led choice to investigate when an IP65 outdoor rating and Matter compatibility are priorities. The Kasa EP40A is the clearer fit when you need two individually controlled outlets, ETL certification, and a published combined limit of 15 A / 1,875 W at 125 V and 60 Hz. Neither specification removes the need to protect the receptacle, keep water away, verify the load, and follow the exact model’s installation instructions.
Buy only after confirming the regional model, current platform support, electrical rating, physical cover fit, and current availability. A correctly installed, properly loaded plug is more important than a higher IP number or a longer feature list.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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