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Kasa KL420L5

Kasa / KL420L5

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Does the Kasa KL420L5 work with HomeKit, Alexa, and Google Home?

The Kasa KL420L5 is a 5 m (16.4 ft) multicolor Wi-Fi light strip whose 50 color zones are controlled separately.

It works with Alexa and Google Assistant. It suits Google Home and Alexa users, with native support through the maker's cloud. Home Assistant users reach it through an integration (the maker's cloud).

At a glance: works withHow this is decided: cited platform facts only
HomeKit
Unknown
Unknown
Google Home
Yes[1]
Wi-Fi cloud, native
Alexa
Yes[1]
Wi-Fi cloud, native
SmartThings
Unknown
Unknown
Home Assistant
Yes[2]
Wi-Fi cloud, via tplink

Key facts

Kasa KL420L5 facts

How facts are sourced: every cell cites its source below
FactValue
StatusCurrent[1]
TypeLight strip[1]
ColorMulticolor, 50 color zones[1]
Brightnessunknown
Base or length16.4 ft (5 m)[1]
Voice assistantsAlexa, Google Assistant[1]
Hubunknown

Integration paths

How the Kasa KL420L5 connects

1 pathHow facts are sourced: every cell cites its source below
PathRequiresiLocaliFeatures lostPlatformsi
Wi-Fi cloud2.4 GHz Wi-Fi network, Kasa Smart app[1]unknownunknown
About these columns
Requires
Hardware the path needs beyond the device and a controller.
Local
Yes when control on this path keeps working with the internet down.
Platforms
The platforms that work with the device on this path: Native (out of the box), Via integration (needs an add-on) or Not supported.

Home Assistant and Homey

Ways to add the Kasa KL420L5

2 routesHow facts are sourced: every cell cites its source below
PlatformLeveliIntegrationDetailsEvidenceLimitations
Home AssistantNative (local)[2]tplinkWi-Fi cloud
  • Quality: Platinum[2]
  • IoT class: Local Polling[2]
  • Works with Home Assistant: Not certified[2]
Model namedNone stated
HomeyOfficial app (cloud)[3]com.tplink.kasaWi-Fi cloud
  • App: Official[3]
  • Runs on: Homey Pro, Homey Cloud[3]
Model namedNone stated
About these columns
Level
How the device gets into the platform on this route. The headline is the best route: local before cloud, direct before bridged, core before community. The methodology page lists every level.

Cite this page

Kasa KL420L5. Smart Home Canon. https://smarthomecanon.com/devices/kasa-kl420l5. Last checked 2026-10-20.

Sources

  1. [1]
    MFRtp-link.com / KL420L5 Kasa Smart Light Strip, Multicolor - TP-Link US
    Accessed Back to text
  2. [2]
    DOChome-assistant.io / TP-Link Smart Home - Home Assistant integration
    Accessed Back to text
  3. [3]
    DOChomey.app / Homey App Store: TP-Link Kasa Smart
    Accessed Back to text