Make Your Outdoor Lighting Smarter

Kasa Smart Wi-Fi Outdoor Plug-In Dimmer  |  KP405

Kasa Smart Wi-Fi Outdoor Plug-In Dimmer

Make Your Outdoor Lighting Smarter

Kasa Outdoor Smart Dimmer Plug, IP64 for Outdoor String Lights, Works with Alexa, Google Assistant & SmartThings, Long Wi-Fi Range with 2.4GHz Wi-Fi, No Hub Required, ETL Certified


  • Weather-resistant

    The IP64 rating and weather-resistant cover* ensure protection against dust intrusion and splashes of water.

    *Cover the socket with the weatherproof cover when not in use.

  • Voice Control

    Use simple voice commands with Alexa or Google Assistant to control your connected devices.

  • Set Schedules

    Switch your outdoor lighting on and off automatically to save energy and effort.

  • Full-range Brightness

    Adjust the brightness of connected lights outdoors to set the perfect ambiance for any activity.

  • Control From Anywhere

    Turn your connected device on and off from anywhere using the Kasa Smart app.

  • No Hub Required

    Works with a secured 2.4 GHz wireless network without needing a hub or a separate device.

Make Your Light Dimmable

Freely adjust the brightness of connected lights* outdoors with Kasa Smart App or Smart assistants. Set the ambiance for any mood or activity as you want.

*The KP405 is designed to be exclusively a smart outdoor dimmer to be used with outdoor lights.  Its maximum load is 4 amps and is not intended to be used with any other outdoor device

Made for Outdoor

The Kasa Smart Outdoor Plug-in Dimmer is made for outdoor. Its materials ensure that it is suitable for outdoor use.

300 ft Long Range WiFi

Enjoy one of the strongest WiFi signals with the Kasa Smart WiFi Outdoor Plug-in Dimmer. Up to 300 ft coverage means there won't be any dead spots anywhere in your backyard.


Schedule your Plug-in Dimmers to turn on/off automatically at specified times or according to Sunrise/Sunset.

Grouping & Scenes

Group your Plug -in Dimmer with other Kasa devices to turn then all on and off with one click or choose a custom preset with.

Away Mode

Away Mode will automatically turn on and off your connected devices, like lights, to make it appear as if you're home.

Countdown Timer

Away Set a timer for your Plug-in Dimmers to automatically turn off when the time runs out.

Technical Specifications +

Package Contents
1 × Plug-in Dimmer With 6-inch Cable
1 × Clamp And Screw
1 × Quick Start Guide
1 × Quick Start Guide

3.1 × 2.8 × 1.5 in (80 × 70 × 38.5 mm)



Operating Temperature

-20℃~50℃ (-4℉~122℉)

Operating Humidity

10%~90% RH, Non-condensing

Working Status

125V~ 60Hz 300 W INC, 150 W LED

Weatherproof Rating


Power Consumption
Typical (triac On)


Standby Mode (triac Off)


Length Of Power Cable


Dimmable Led (mlv)

150W Max 

Dimming Type

Leading Edge Dimming / TRIAC Phase Cut


Existing secured Wi-Fi network (2.4 GHz Wi-Fi Only, 802.11 b/g/n)


The free Kasa Smart app and account required

Gfci Receptacles

Must plug into GFCI receptacles if used outdoor or in wet locations


What's Included

  • 1 × Plug-In Dimmer with 6-Inch Cable
  • 1 × Clamp and Screw
  • 1 × Quick Start Guide