- Outlets
- 2, individually controllable
- Max Load
- 15 A and 1875 W total across both outlets (TP-Link's rating)
- Weather Resistance
- IP64 rated against dust and water splashes (TP-Link's rating)
- Connectivity
- 2.4 GHz Wi-Fi, no hub required
- Wireless Range
- Up to 300 ft in open space (TP-Link's claim)
- Works With
- Alexa, Google Assistant, Samsung SmartThings
- Dimensions
- 4.9 x 2.38 x 2.29 in
TP-Link
TP-Link Kasa KP400 Outdoor Smart Plug
A weather-resistant two-outlet Wi-Fi plug for string lights, fountains, and other outdoor gear you want on a schedule.
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All prices
| Store | Price | Checked | |
|---|---|---|---|
| Target Best price | $23.49 | ✓ AUG 28 | Go to store |
Prices were checked on the dates shown and can change at any time. The store page is always authoritative. Shipping and taxes are not included.
First verified Aug 28, 2026. When a later check finds a different price, it gets logged here.
Our verdict
Where it wins
- Two outlets you can switch independently from one unit
- IP64 housing is built for outdoor dust and splash exposure
- Works across Alexa, Google Assistant, and SmartThings, not locked to one ecosystem
Where it loses
- Both outlets share the single 15 A, 1875 W budget
- 2.4 GHz Wi-Fi only, and outdoor placement can stretch a weak router signal
- Bulky housing, this is not the plug to use discreetly indoors
For patio string lights or holiday lighting this does the job of two smart plugs in one weather-resistant unit at a fair price. Buy it for outdoor sockets specifically. If you only need indoor plugs, smaller and cheaper indoor multi-packs from Wyze or Govee make more sense.
Also in smart plugs
Amazon Smart Plug
Amazon's own single-outlet Wi-Fi plug, built for households already running Alexa and nothing else.
Govee Smart Plug Pro 4-Pack
A four-pack of Wi-Fi and Bluetooth smart plugs with per-plug energy monitoring, aimed at people outfitting several rooms at once.
Wyze Plug 2-Pack
A two-pack of basic Wi-Fi smart plugs for people who want app and voice control of lamps, fans, and other plug-in devices without buying a hub.
Common questions
Can I leave it outside year round?
TP-Link rates the housing IP64, which covers dust and splashing water. It should hang under some cover rather than sit submerged or in standing water.
Can I control each outlet separately?
Yes. The two outlets are individually controllable in the Kasa app and through voice assistants.
Does it need a hub?
No. It connects directly to a 2.4 GHz Wi-Fi network, and TP-Link claims up to 300 ft of range in open space.
Prices last verified Aug 28, 2026.