Kasa Smart Light Bulbs, Full Color Changing Dimmable Smart WiFi Bulbs Compatible with Alexa and Google Home, A19, 9W 800 Lumens,2.4Ghz only, No Hub Required, 4-Pack, multicolor (KL125P4)

Special FeatureDimmable, Auto White, Energy Monitoring, Tunable
Light TypeLED
Indoor/Outdoor UsageIndoor
Wattage9 watts
Light ColorRGB
BrandKasa Smart
  • Multicolor & Auto White: Dimmable 16 million colors and warm to cool whites(2500K-6500K). Set your bulb to automatically adjust its color temperature to match natural light patterns from dawn to dusk. Explore endless lighting possibilities to create your favorite light effects for everything from a dinner party to a late-night study session. Great for holiday decorations.
  • Voice Control: Get hands-free control of your lights with your voice via Amazon Alexa or Google Assistant. Perfect for times when your hands are full or entering a dark room.
  • Remote Control: Control your smart light bulb from anywhere with your smartphone using the free Kasa smart app (iOS, Android), Dim, turn on or off or change the colors of your light bulb remotely at your fingertips.
  • Energy Monitoring & Scheduling: Monitor real-time energy usage. Drive down energy consumption without losing quality (60 W equivalent). Use timer or schedules to set your lights to automatically turn on and off whenever you want, such as waking up with a soft glow in the morning with sunrise offset.
  • Trusted & Reliable: Kasa is trusted by over 6 Million users. UL certified for safety use. 2-year warranty. Require 2.4GHz Wi-Fi network connection.
SKU: B08TB8Z5HF Category:
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Device detailed description

Dimmable 16 million colors and warm to cool whites(2500K-6500K), E26 A19 base. Explore endless lighting possibilities to create your favorite light effects for every scene you need. The Kasa app contains not only all the feature you expect from TP-Link Kasa family, but also guidance for you through each step of the installation to connect your smart bulb with your home Wi-Fi, Alexa or Google assistant.

Features and specification

Brand Smart devices brand

Integration Supported smart home integration

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Interface Smart device connectivity interface

Manufacturer Smart device manufacturer

Country of Origin


Color Available colors

Material Smart home device material


Voltage (V)

Wattage (W)

Item Package Quantity


Type of Bulb

Luminous Flux (Lumens)

Special Features

, , ,

Included Components

‎4x Kasa Smart Light Bulb Multicolor, 1x Quick Installation Guide

Batteries Included?

Batteries Required?

Warranty Description

‎2-year warranty.

Product Dimensions

‎2.36 x 2.36 x 4.52 inches


Product guides and documentsInstallation Manual (PDF)User Guide (PDF)

Frequently asked question

I’d like to use these in a fixture that currently is controlled by a dimmer switch. Is that okay?

One thing about having a dimmer, even at 100%, if it is a phase-cut dimmer, it can cause problems for digital electronics. Not sure how this bulb would respond, but all of the smart bulbs I've tried from any brand will buzz or flicker. So, if you have problems like that your best bets would be dumb LED bulbs that list … see more One thing about having a dimmer, even at 100%, if it is a phase-cut dimmer, it can cause problems for digital electronics. Not sure how this bulb would respond, but all of the smart bulbs I've tried from any brand will buzz or flicker. So, if you have problems like that your best bets would be dumb LED bulbs that list compatibility with dimmer switches, or to replace the switch for a few bucks.

Da buena luz

Hi! Yes, the KL125 Smart Bulbs are designed to provide 800 lumens (60W equivalent) of light output for your needs.

Hola son e27 sirve para 220w?

Hi! These are not for 220V.

I live in Turkey and the voltage is 220v. I want to buy kasa smart kl125 smart lamb but can it work in Turkey because of the voltage?

No - the KL125 sold here is designed for USA voltage (120V).



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  • Anonymous

    works great, with one issue

    So i thought the WiFi would have been the issue since that is the most common complaint. I think I am going to have to blame that on people that have cheap home WiFi and or do not know how to set up best practice for IOT and a separate WiFi for your IOT and then bridging the networks. I do have an overkill Network setup in my home. and i do use TP Link Omada Access Points and a TP Link Omada Controller for my wireless. and my router/DHCP controller/firewall is a Qhora. With this set up, i NEVER lose connectivity or need to power them on and off. i have 12 of these bulbs and never had a single one lose their connection.
    HOWEVER, i do have one complaint. when these are on full Brightness (at lest the 850 Lumen version as that is the ones i have) they will start to have a flicker after a while. but i have noticed that if they are never at 100% or like in Auto mode to change with the time of day (BTW this is a nice little feture if you work a regular shift, not so great if your a 3rd shifter) they do not flicker. also I think they get better with time… i was almost going to replace some of them that where flickering too much. but they got left on over night (kids forgot to turn them off with a simple google command) but they seam to be working perfect after a long run time. i am not sure if this is a fluke. I do have them set that they NEVER lose their power, they are turned on, off, and everything in between with either the App or with Google.
    i do wish there was some ‘Fun’ modes, like party mode where they can randomly change and just do some fun things like some other lights. but they can not. at least that i am aware of. also, it seams google is limited to what it can do with the lights. example of this is that you can not tell google to set the lights to a scene that you have set up. you can set the color, brightness, tone, ect. but you can not tell it to use an existing scene. that i think needs to be updated for google to be able to see those scene since it does connect to the cloud service and it should be able to use those scenes.

    other then that, i really like these, and is way better then spending outrages amounts of money of Philips branded bulbs. just as long as you know how to set up you wifi, and have GOOD wifi in your home where you are placing these. with my house being nerd central and having enterprise grade wifi and network equipment, i do not have any issues with these lights.

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  • Anonymous

    4 pack bulbs

    After reading reviews, I was pretty nervous about ordering these seems how some people made it seem like a lottery order with quite a few different complaints. That could still be the case. Several people mentioned black or white bottom bulbs, but I’m still not sure what that means, since I didn’t see anyone who mentioned them post a picture of the different kinds they were talking about.

    But in any case, when I ordered the 4 pack they were all the same, as pictured with box, and they all work. The exact model is KL130 for anyone who’s curious. I got the 4 pack because I was worried about getting mismatched versions, so I guess at least in my case that worked. I just ordered a second 4 pack to do the rest of my apartment, so if they wind up being different, I’ll come back and say so.

    I also read one review that said the bulbs were off and wouldn’t go in their sockets which gave me doubts as well, but they do, in fact, fit into a standard socket. I got 3 of my 4 pack into my overhead fan light (the standard kind with gold metal, ridged glass and brown wood blades you see in apartments everywhere), then tested the remainder out in my bathroom mirror 4-light strip (again, the cheap medicine cabinet kind you see in low rent apartments everywhere) and then again into my old-timey touch lamp and it worked in all of them, so unless you have exotic fixtures of some kind, you’re good to go. Also slightly surprised that they worked in my touch lamp, so if you were wondering about that, just touch to the highest light setting and you’re good to go.

    I was also kind of worried about how the setup would go since a few people said it was wonky, but not how and I didn’t see the actual process pop right up in the first few pages of reviews, so I’ll just include it here:

    1. Download the ‘Kasa Smart’ app, create a login and verify your email.
    2. Put a light into your target fixture, turn it on to make sure it works, then turn it back off again.
    3. Hit the plus sign in the upper right hand corner of the app.
    4. Tap on the ‘Device’ option
    5. Tap on the ‘Smart light’ option
    6. Tap on the ‘Smart bulb KL100 series’ option
    7. The first prompt says ‘First, make sure the power is off on the light you’re replacing. Swap the current bulb with the smart bulb’, you’ve already done this, so tap ‘Next’.
    8. The next prompt says ‘Power on the light, wait about 5 seconds until the smart bulb blinks 3 times’. Do that and then hit next.
    9. It’ll connect and then ask you to sign into your wifi.
    10. You’ll get a prompt for your bulb to update, do that.
    11. Give the bulb a name.
    12. Done

    Optional #1: If you want to put a cluster of bulbs into a group so they all change colors/dim simultaneously like I wanted to with my 3 fan lights, make sure you’ve set each bulb up separately, then hit the + sign in the upper right hand corner and tap ‘group’. Then select the bulbs you want to put in a group and give it a name. The main interface page will show groups on top as well as each individual bulb below.

    Optional #2: Set up with your Alexa/Google/whatever. I jumped the gun on connecting Alexa before I added the bulbs and she announced each time one was installed that I could now control ‘TP underscore … blah blah blah’ by talking to her. Kind of highlights the importance of the names if you’re going to be doing this because no way are you saying its given device name to control it. I mean, unless you’re into that kind of thing, no judgement, but not for me.

    Even though *I think* I got the model everyone was a bit displeased with, aside from putting in the wrong wifi password on the first attempt and having to delete and reinstall the app to fix it, setup was surprisingly easy and quick. Zero wonkiness actually wound up happening, so another win.

    In terms of brightness and color versatility, when it’s at it’s brightest in white, I can’t tell the difference between it and the intense spiral LED’s it replaced…which is to say they’re capable of being blinding if that’s what you need.

    For color versatility you legitimately get a whole color wheel to choose a color with and then the hardest part is really just picking one since all the colors look pretty cool. In an entirely dark room at night, the colors at full brightness somehow give a dimmed feel while still providing all the light you could want to look around with. As a dark mode everything person, it’s a strange surprise best of both worlds scenario I keep double checking when I think it’s actually dimmed by reading the book titles in perfect clarity across the room.

    The dimming feature is on a percentage wheel similar to a speedometer and is also pretty nice.

    Overall, I’m really happy with my purchase and that the reviews freaked me out for zero reason. If you get the 4 pack and/or the same version bulbs as I did, you should be all good :).

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  • Anonymous

    Great bulbs, Kasa/TPLink install process greatly improved

    I have installed a bunch of these bulbs around the house in past couple of years. I found first bulbs I got were not easy to get recognized on my network. Second set bought about 6 months later were a bit easier but still a try & try again process getting them recognized wirelessly. This set (and a couple I bought earlier this year installed without a hassle. Do need to follow the install sequence to the letter, but doing so will get the bulbs up and running quickly. Work with Alexa very well, too. These are dimmable which I like. And no need for the Kasa Smart Plugs anymore. That’s a plus as those things were ginormous.

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  • Anonymous

    I love being able to control my lights remotely, by voice, or set schedules!

    I am loving the scheduling option, being able to tell Alexa to turn lights on or off, or change their color and brightness either by voice or using my Alexa app on my phone.
    I can control what time my lights go on or off every day, and what color or brightness they should be when they turn on.
    I have 5 of these lights in my apartment (so far . . . )

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