Tapo P400M Review: The Matter Outdoor Plug That Puts Two Sockets on Your Patio
The Tapo P400M is a Matter-certified outdoor smart plug with two independently switchable outlets, a full 15A and 1800W rating and an IP65 housing, and it is the straightforward pick for automating patio and holiday lights. Setup is quick whether you scan the Matter code into Apple Home or Google Home or pair it over Bluetooth in the Tapo app, and the two outlets mean one device covers two jobs. The main catches are a 2.4 GHz-only radio that can be weak through thick walls and the absence of energy monitoring.
- Outdoor lighting
- Holiday and Christmas lights
- Apple Home or Google Home users
- Two-outlet outdoor control
- Matter households
Pros
- Matter-certified, so it works with Apple Home, Alexa, Google Home, Samsung SmartThings and Home Assistant
- Two independently controlled outlets, each with its own power button
- IP65 weatherproof with capped sockets for gardens, patios and holiday lights
- Full 15A and 1800W rating, plus a 1/2 HP motor load
- Dual antennas for long-range 2.4 GHz Wi-Fi
- Schedules, timers and Away Mode per outlet in the Tapo app
- Two-year warranty
Cons
- 2.4 GHz Wi-Fi only; owners report a weak signal through a thick exterior wall
- No energy monitoring
- IP65 rather than fully waterproof, and it should stay face down and capped
- Durability drew mixed reports, with a minority of units failing early
- No 5 GHz, Zigbee or Thread options
Who is the TP-Link Tapo P400M for?
The Tapo P400M is for anyone who wants to automate something outside the house without adding a hub. It is a Matter-certified outdoor plug with two independently switched outlets, so patio string lights can run on one socket while a fountain or pond pump, a heat lamp or a set of holiday decorations runs on the other, each on its own schedule or by voice. Because it speaks Matter it slots into Apple Home, Alexa, Google Home, Samsung SmartThings or Home Assistant instead of locking you into a single app, and the IP65 housing with capped sockets is built to stay outdoors. Buyers use it for exactly those jobs: Christmas lights, garden and porch lighting, a well or pond pump, even remote control of an aquarium top-off system, switching each outlet on its own from the Tapo app.
What buyers love
Setup is the theme that keeps coming up. Owners describe adding it in minutes, either by scanning the Matter code straight into Apple Home or Google Home or by pairing over Bluetooth in the Tapo app, and several call it the smoothest smart-home addition they have made. The two outlets are the next thing people mention: they can be named and switched separately, so one plug does two jobs without a second device, and reviewers who already use the Tapo app or Kasa plugs say it simply fits in. Owners also value that it stays connected in the cold and the rain, running outdoor Christmas lights, a scheduled porch light and small pumps without drama, and that the Matter path lets it work alongside the rest of an Apple Home or Google Home setup.
What to know before you buy
The radio is the main caveat. The P400M is 2.4 GHz Wi-Fi only, with no 5 GHz, Zigbee or Thread option, so a unit mounted just outside a thick exterior wall can see a weak signal, which one owner reported. It is IP65, weatherproof against rain, dust and splashes but not submersible: TP-Link advises mounting it face down, at least a foot off the ground, with the sockets capped when they are not in use, and one reviewer wished it were more waterproof still. There is no energy monitoring, so it switches power but will not tell you how much a device draws, and Amazon's own round-up of the reviews flags durability and value as mixed, with most units lasting well but a minority failing early, so it is worth buying where returns are easy.
Is the TP-Link Tapo P400M worth it?
At the low end of the price range for a dual-outlet outdoor plug, the P400M is an easy recommendation: two independently switched sockets, a full 15A and 1800W rating with a 1/2 HP motor load, IP65 weatherproofing, Matter support across the major ecosystems and a two-year warranty, all in one box. The trade-offs are a 2.4 GHz-only radio, no energy metering and a housing that wants to stay sheltered from direct heavy rain. If you want to schedule or voice-control outdoor lights and small appliances and you use (or plan to use) a Matter ecosystem, this plug covers it cleanly; if you need power monitoring or a 5 GHz connection, look elsewhere.
Frequently asked questions
Does the Tapo P400M need a hub?
No. It connects directly to Wi-Fi and is controlled from the Tapo app. To use it in Apple Home, Alexa, Google Home or SmartThings you need a Matter controller already in the house, such as a HomePod, an Apple TV, an Echo or a Nest speaker, and it is then shared into those ecosystems.
Does it work with Apple Home and Matter?
Yes. It is Matter-certified, and TP-Link lists Apple Home, Alexa, Google Assistant and Samsung SmartThings as supported platforms; Home Assistant can commission it too because it is a certified Matter controller.
Can the two outlets be controlled separately?
Yes. Each of the two outlets has its own physical button and can be named, scheduled and switched on its own in the app or by voice.
Is the Tapo P400M fully waterproof?
It is IP65, which resists rain, dust and splashes, not immersion. TP-Link recommends mounting it face down, at least a foot off the ground, with the sockets covered by the included caps when they are not in use.
Does it monitor energy use?
No. The P400M is a plain on-off plug with no power metering. TP-Link sells separate Tapo plugs that add energy monitoring.
How much power can it switch?
Up to 15A and 1800W, with a motor load of up to 1/2 HP, which covers outdoor lights, holiday decorations and small pumps rather than large appliances.
