Kasa Outdoor Smart Dimmer Plug, IP64 Plug- in Dimmer for Outdoor String Lights, Compatible with Alexa, Google Assistant & SmartThings, Long Wi-Fi Range 2.4Ghz, No Hub Required, ETL Certified(KP405)
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Kasa Outdoor Smart Dimmer Plug, IP64 Plug- in Dimmer for Outdoor String Lights, Compatible with Alexa, Google Assistant & SmartThings, Long Wi-Fi Range 2.4Ghz, No Hub Required, ETL Certified(KP405)

4.4/5
Product ID: 362318835
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Details

  • Operation Mode
    Off
  • Current Rating
    4 Amps
  • Operating Voltage
    94 Volts
  • Contact Type
    Plug
  • Connector Type
    Clamp
  • Brand
    Kasa Smart
💧IP64 Weatherproof
📶300ft Wi-Fi Range
🎛️4A Dimmable Control

Description

🎉 Light up your nights smarter, not harder!

  • SMART VOICE CONTROL - Hands-free dimming with Alexa, Google Assistant, or SmartThings integration for effortless ambiance setting.
  • PLUG PLAY SIMPLICITY - Quick setup via the Kasa app means you’re controlling your outdoor lighting in minutes—no tech headaches.
  • WEATHERPROOF DURABLE - IP64 rating shields your smart dimmer from dust and water splashes, perfect for unpredictable outdoor conditions.
  • EXTENDED WI FI COVERAGE - Enjoy seamless control up to 300 feet away with stable 2.4GHz Wi-Fi connectivity—no hub needed.
  • GROUP SCHEDULE LIGHTING - Sync multiple dimmers and automate your outdoor lights with custom schedules to save energy and impress guests.

The Kasa Outdoor Smart Dimmer Plug (KP405) is an IP64-rated, weather-resistant smart plug designed exclusively for dimmable outdoor lights. It supports up to 4 amps and connects via 2.4GHz Wi-Fi with a long-range of 300 feet, enabling voice control through Alexa, Google Assistant, and SmartThings without requiring a hub. With features like grouping, scheduling, and ETL certification, it offers reliable, energy-efficient outdoor lighting control backed by a 2-year warranty.

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Specifications

Operation ModeOff
Current Rating4 Amps
Operating Voltage94 Volts
Contact TypePlug
Connector TypeClamp
BrandKasa Smart
TerminalPhysical
Item dimensions L x W x H3.13 x 1.53 x 2.76 inches
Circuit Type1-way
Actuator Typedimmer
Contact MaterialBrass Or Copper
International Protection RatingIP64
Number of Positions2
Upper Temperature Rating122 Degrees Fahrenheit
Controller TypeAmazon Alexa, Google Assistant, SmartThings
Control MethodTouch
Connectivity ProtocolWi-Fi
ColorBlack
Wattage1.6 watts
Unit Count1 Count
Number of Items1
ManufacturerTP-Link
UPC840030703119
Part NumberKP405
Item Weight5.9 ounces
Product Dimensions3.13 x 1.53 x 2.76 inches
Item model numberKP405
StyleDimmer 1-Socket
Item Package Quantity1
Special FeaturesDimmable
UsageIndoor & Outdoor use
Included Components1x Plug-In Dimmer with 6-Inch Cable ,1x Clamp and Screw ,1x Quick Start Guide
Batteries Included?No
Batteries Required?No
Warranty Description2 Years

Have a Question? See What Others Asked

A smart plug with a dimmer? How does it work?
When I use the physical dimmer button, will the new dimming status be reflected in the Kasa app?
KP405 is IP64 Weather Resistance – what does it mean?
Can I use the KP405 with Google Home?

Reviews

4.4

All from verified purchases

A**R

power on when ya want it!

Great outlet and with the app its easy to setup and pair to alexa! I use this plug to turn a water pump on and off. and it is easy to do from my phone as well! quick to turn on and off! it is very water resistant and durable! can set schedules in the app for when you want it to turn on and off! works great!

A**R

Easy to Program and Convenient for Outdoor Use

This timer is really easy to program, which I prefer over the older-style timers that look like clocks and require you to manually press down all the tabs to set the time. Those can be a hassle, especially since you have to constantly adjust them as sunrise and sunset times change throughout the year. What I love most is that I can program it to turn on at specific times and set different schedules for different days of the week. Plus, it automatically adjusts for sunrise, sunset, and daylight savings time, eliminating the need for manual resets every season.I mainly use it for outdoor fountains and lights, and it works perfectly—making life so much easier. I also use Kasa light switches as well, so it is nice to have everything on the same app.

D**.

This is a winner!

I bought this to control my pool pump with my phoeasyne. Bonus it works with Alexa voice control. It was easy to set up and works very well. It is weatherproof. Great product!

R**N

Easy setup. Great app. Working well.

Purchased almost a year ago and works perfectly with my outdoor Feit LED stringlights. Great Kasa app with excellent scheduling options. Smooth dimming from 0% to 100%. Full Alexa support with voice commands for on, off and dimming to any level desired. I have many Kasa smartplugs. None have failed and all work flawlessly. Highly recommend!

T**O

Kasa Good

Product: Kasa / TP-Link Outdoor Smart Plug, single outlet, model KP401Gist: overall I like it and would get it again although I'd actually get the one with 2 plugs insteadGood: Kasa Smart app works good, the Kasa/TP-Link products are good quality and good function with the Kasa App or the Alexa App and Echo devices, actual setup of the plug was very simple and easy - just select it in the Kasa app and then go into Alexa and it already has it ready to go without even doing anything.Not so good: you have to have the Kasa Smart App on your phone, you need a username and password, the unit is not waterproof - it is weather proof - that means no direct water contact I'm pretty sure. It is designed to be plugged into the outlet and for the unit to hang down by the cord about 7 inches with the actual socket facing the bottom. That way rain will not enter, just run off the sides. Just keep that in mind when determining if this style plug will fit into your scenario.Details: My first smart plug was a Kasa/TP-Link product that I purchased off Amazon in 2017 and in 2024 it is still operating perfectly with Alexa/Echo so I expect this item will also last a few years.Since I already had a Kasa account setup in 2017 all I had to do was login and add this new device. Well, I haven't accessed that account since 2017 and haven't had the Kasa app on my phones since then either. I've just been using the Echo devices to control my Kasa devices ever since initial setup years ago. So here is the process for me to setup this device:First: Like most smart devices you need the 2.4 GHZ band of your internet router to be active along with the 5 GHZ all the time.1. download the Kasa Smart App onto my phone (I ditched Apple so I use the Android version now)2. open the Kasa App - it will want a login before anything else can be done. If you have an existing account and don't know your username or password then just click recover option and it will send a link to your email it has on file. Use the link to reset the password. I actually had my password written down but I think since its been years since I logged in it was disabled and that's why I had to do the reset.3. After you login to the app, just click the plus sign for add device and scroll through the types to select your Outdoor Plug and then the KP401.4. Assign a group or routine in the Kasa App if you want5. Once you're done with the Kasa app if you go into the Alexa app it should be already setup and ready to use.I didn't give it 5 stars because everything can always be better and I think the amount of cord this hangs by should be shorter. For some reason they didn't think so. It works well but looks a little clunky in my patio scenario.

J**O

Works just as well as products that cost more

Tired of having to adjust timers based on sun up/sun down, daylight savings time, or sensors that just don't seem to work all that well? It is time to give up the old way of connecting outdoor lights and using something better, and this is that something.Sure there are other brands out there that cost considerably more, but they don't do anything more than this does. And while you can find "timers" that cost less, they do far less and are far less reliable.The pairing process is braindead simple and doesn't require a separate hub. From there it is one simple step to add it to Alexa or Google Home. You can then do things like set them to go on at "sunset" and just forget about it, no need to adjust for DST or changing daylight hours. Of course, if you do want to override it for some reason, you can simply tell Alexa (or Google) to just turn it on. Or if you don't happen to have your phone on you, or aren't near your assistant, there is a button to tap to turn it on.The casing is solid and well made, durable and feels substantial, and has survived through summer and winter weather and continued to work without issue. Stop messing with inferior product, and certainly don't overpay when you don't need to do so, this Kasa version is everything you need. I have both the single outlet and double outlet (which gives each outlet a separate id so they can be turned on or off individually if you so choose), and both are superior products and well worth the price asked for them.

K**T

Perfect for outdoor landscape or mood lighting

Using it to power up my patio cafe lights. Works perfectly with Amazon / Alexa to either turn on via scheduled time, or by asking Alexa to turn them on. Easy to set up.

T**R

Unreliable after time

Great while it lasted.Of 4 Kasa Smartplugs we own, only two lasted more than a year. Two devices just stopped working and would never reconnect. Tried everything and updates the firmware and no luck.The other two mini smartplugs are holding on.I like the interface and ease of use, but caution on longevity.

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TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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