Download for KL125P4 V4.60

Please choose hardware version:

>How to find the hardware version on a TP-Link device

IMPORTANT: Model and hardware version availability varies by region. Please refer to your TP-Link regional website to determine product availability.
Vx.0=Vx.6/Vx.8 (eg:V1.0=V1.6/V1.8)
Vx.x0=Vx.x6/Vx.x8 (eg:V1.20=V1.26/V1.28)
Vx.30=Vx.32 (eg:V3.30=V3.32)

Product Overview

KL125(US)_V4.6_Datasheet

Manual

FAQs

How to configure the Notification feature for the Tapo & Kasa devices on the Tapo app 10-27-2025 150427 views
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How to check and improve the network connection stability of Tapo&Kasa smart devices 07-08-2025 278250 views
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How to connect TP-Link Smart Bulb to my home network via Kasa 09-19-2024 492297 views
What to do if schedule/timer/away mode not working properly for Tapo/Kasa smart Plug/Switch/Bulb/Light Strip 07-16-2024 156980 views
Common questions about Schedule Timer Away mode of Smart Home devices 07-03-2024 116956 views
What should I do if my Kasa device keep losing connection or going Offline? 03-05-2024 168599 views
What should I do if I fail to configure the Kasa device? 12-25-2023 484407 views
Making Your Account More Secure: Introducing Two-Step Verification (2FA) for the Kasa App 03-30-2023 71890 views
Common questions about Smart Actions in the kasa app 01-06-2023 149148 views
How to use Widgets to control your Kasa Devices and Kasa Scenes on iOS devices 12-16-2022 147840 views
How to create a TP-Link Cloud Account on Kasa app 12-08-2022 639452 views
What can I do if I forget my password of TP-Link Cloud account?(tpCamera App and Kasa App) 08-30-2022 201249 views
How to use Widgets to control your Kasa devices and Kasa scenes on Android devices 08-17-2022 102162 views
How do I move my Kasa device to a different wireless network? 08-15-2022 720549 views

Firmware Release Note

Refer the FAQ to update firmware.

KL125(US)_V4.60_1.0.6 Build 240719

Published Date: 2025-09-16

Modifications and Bug Fixes:
1. Added support for Power Outage Settings to set the bulb to stay off after a power outage.
2. Added support for customizing fade on and fade off durations.
3. Enhanced wireless stability.
4. Improved device performance.

KL125(US)_V4.6_1.0.5 Build 230613

Published Date: 2025-03-04

First firmware released.

Apps

TP-Link Kasa: TP-Link Kasa provides the easiest way to manage and control your smart life products.