Kasa Smart

Kasa Smart Light Bulbs Full Color Changing Dimmable Smart WiFi Bulbs Compatible with Alexa and Google Home A19

1376+ bought in the past month

$13.99$15.14

About this item

  • 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. Require 2.4GHz Wi-Fi network connection.
  • Input Power (Actual power draw in Watts): 9 W
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Product details

BrandKasa Smart
Light TypeLED
Special FeatureAuto White, Dimmable, Energy Monitoring, Tunable
Wattage9 watts
Bulb Shape SizeA19

Technical specifications

brandKasa Smart
light_typeLED
special_featureAuto White, Dimmable, Energy Monitoring, Tunable
wattage9 Watts
bulb_shape_sizeA19
bulb_baseE26
incandescent_equivalent_wattage60 Watts
specific_uses_for_productLighting
light_colorRGB
voltage120 Volts
unit_count2.0 Count
color_temperature6500 Kelvin
number_of_items1
brightness800 Lumen
shapea19
materialPlastic
model_nameKL125P2
indooroutdoor_usageIndoor
power_sourceCorded Electric
color_rendering_index90
power_consumption60 Watts
item_package_quantity1
light_source_typeLED
specification_metul_listed
item_weight5 ounces
light_source_wattage9 Watts
product_dimensions2.36"W x 4.52"H
accepted_voltage_frequency100 to 120 Volts and 60 Hertz
bulb_diameter2.36 Inches
control_methodVoice
white_brightness800 Lumens
efficiency800 lumens / 9 Watts = 88.89 lumens/Watt
styleKasa Smart Bulb
manufacturerTP-Link
colorMulticolor
upc840030702389
light_output_maximum800 Lumens
part_numberKL125P2
item_model_numberKL125P2
included_components2x Kasa Smart Light Bulb Multicolor, 1x Quick Installation Guide
special_featuresAuto White, Dimmable, Energy Monitoring, Tunable
batteries_includedNo
batteries_requiredNo
best_sellers_rank#163 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in LED Bulbs
date_first_availableJanuary 20, 2021

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Customer reviews

4.524,366 ratings

Customers say

Customers find the light bulbs easy to set up, with excellent quality and color options, and consider them good value for money.

★★★★★

Solid smart-bulb for everyday use

JNDecember 4, 2025

I installed this Kasa bulb in a lamp and it worked almost instantly — setup was easy, no hub needed, and it connected fine to my 2.4 GHz WiFi. The color-changing + dimmable features are great: I can pick from a wide range of hues or set cozy warm-white light, and brightness control is smooth. It plays nicely with voice assistants (Alexa / Google), which makes it convenient if you prefer hands-free control. The light output is bright enough for a medium-sized room (roughly equivalent to a 60W bulb), but when on colored modes it feels more ambient than ideal for focused tasks. Read more

★★★★★

Lights, Camera, Action!

MzBHaven24/7-365December 5, 2025

Easy to set up! There are multiple colors available in the app to choose from. I just got mine a couple of days ago so I'll update if needed after I've used it for a little bit. My main reason for buying it was so that I can have a small light at night when I'm out. I have a cat and I'd perfer she not be in the dark when I go out at night (don't judge me🤭). The price was nice and it works as described. Love the fact that I can set a schedule and it works with Alexa! Read more

★★★★★

Bright, fun, and convenient — these bulbs totally upgrade the vibe

DariosaurusRexDecember 6, 2025

I picked up these smart light bulbs a few weeks ago, and they’ve already become a go-to in our home. I love how easy they are to set up — no hub needed; they just connect straight to our Wi-Fi and start working right away. What really sold me is how flexible they are. I can change the colors to match my mood, dim the lights for movie time, or brighten things up when I’m trying to focus or get work done. Switching between “cozy evening” warm light and “bright morning” daylight is surprisingly satisfying. They work perfectly with voice control (I use Alexa), which means I don’t have to fumble for a light switch. It’s super handy when my hands are full or I’m already in bed and don’t want to get up. For me, these bulbs are great for everyday living — whether I’m working from home, winding down in the evening, or just relaxing in the living room. They make it easy to create the right atmosphere without any fuss. If you’re thinking about upgrading your lighting and want something flexible, easy to control, and fun to use — these bulbs are a home run. Read more

★★★★☆

Good entry level smart bulb

WallyAugust 7, 2022

I have over a dozen of these Kasa smart bulbs in my house, and I've used them for over a year now. Overall, these are a solid and affordable entry-level smart bulb. Installation is a piece of cake. Simply unscrew the old (standard) bulb, and screw the Kasa bulb in its place. Then follow the instructions in the app to configure the bulb with your wi-fi. To be clear about how these work: DO NOT flip the wall switch on and off. Turning the switch off will kill power to the bulb. The wi-fi chip inside the bulb always needs a small amount of power in order to receive the command to turn the light on. When you want to turn the light on from your phone app, or Alexa device, these devices will send a command to the bulb over wi-fi. If the bulb has no power, it cannot receive this command. So LEAVE THE WALL SWITCH ON ALWAYS, and simply use your app or Alexa to control the lights. Of course, you COULD continue to use the wall switch as normal, and the lights will go on and off properly. This is actually quite convenient when guests are unfamiliar with how the bulbs work. However, if you plan to use the wall switch routinely, you lose any smart functionality, and there's no point to buying these bubs. Unfortunately, the bulbs seem to have a flaky wi-fi connection, and the app occasionally loses the ability to communicate with the bulb. Every day or two, I have to flip the wall switch off and then back on to "reboot" the bulb's wi-fi chip. Then you're good for another couple days. In terms of brightness, these are advertised at 800 lumens. I have 5 of them in my dining room chandelier, and it certainly provides more than enough light for eating, and for craft projects on the table. In the living room, the ceiling fan has 4 of these bulbs, and it does seem a little dim at times when reading. I wish the bulbs went up to 1,000 lumens or more. Of the 12+ of these bulbs I own, one went bad within a few months and I had to replace it. The rest continue to work. Overall I give these a B+. Read more

★★★★★

Functional and Convenient

Jess PJanuary 2, 2026

Came ready to use for my alexa but still had to download the tp-link app. Great light and a need for bust family who forgets we dont need to pay Ga power anymore than we already do! Works with a reg lamp. Read more

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