Kasa Smart LED Light Strip, 16.4ft WiFi LED Strip Works with Alexa, Google Home, SmartThings, High Brightness with 16 Million Colors, RGB, Grouping, Adjustable Length, Up to 25,000 Hours (KL400L5)

Paint your home in endless colors with Kasa Smart LED Light Strip Transform your home into the ultimate entertainment destination with LED strip light featuring 16 million colors with high brightness & saturation to suit every mood and scene, and take control of your light strip with just your voice or Kasa App.

Important Information: This device complies with part 15 of the FCC Rules.

Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

Table contents

  1. OverviewTop
  2. Picks
  3. Buying Guide
  4. Compare Products
  5. FAQs
  6. Conclusion
Smart LED Light Strip
Color Multicolor
Brand Kasa Smart
Indoor/Outdoor Usage Indoor
Special Feature Dimmable, Timer, Color_changing, Remote_controlled, Adjustable
Light Source Type LED
Power Source AC
Light Color RGB
Theme Movie
Occasion Halloween Christmas Gaming TV
Style 16.4 ft
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[High brightness & saturation] 
[Animated lighting effects]
[Complete control] 
[Adjustable length] 
[Grouping and Smart Actions]
[High brightness & saturation] 
[High brightness & saturation] 
[Animated lighting effects]
[Complete control] 
[Adjustable length] 
[Grouping and Smart Actions]
  • [High brightness & saturation] The 16.4ft LED light strip features customization of up to 16 million colors with high brightness & saturation for the best lighting throughout your home.

The Kasa Kasa Smart LED Light Strip features advanced animated lighting effects, with many different preset effects to choose from. A unique lighting experience for your TV, gaming rig, parties or general ambiance.

You can control your Smart LED Light Strip from anywhere with the Kasa App or with your voice with Alexa or Google Assistant. Control the brightness, change colors, set schedules, set timers, activate away mode, and so much more.

You have the flexibility to bend and cut the strip to fit your needs. Allows you to place the strip where you wish with the included 3M adhesive backing. Note: KL400 and it’s controller need to be connected in the direction indicated by the arrow.

The KL400L5 works with all Kasa Smart devices. You can group multiple Kasa devices together to perform a function based on the scene you customize such as movie night. Smart Actions allows sequences, so you can have your lights turn on when your Kasa camera detects motion.

Voice Control

Free up your hands by using voice commands with Alexa, Google Assistant, or SmartThings-supported devices.

Smart App Control

Control your Kasa Smart LED Light Strip from anywhere with the highly-rated Kasa Smart app.

Manual Control

Use the included controller to handle your Kasa Smart LED Light Strip.

Turn it on and off, reset it, or change its color all with one button.

Smart LED Light Strip


The Kasa Smart LED Light Strip, KL400L5, is an excellent addition to any smart home, offering a range of features that make it easy to create the perfect lighting environment.

With its compatibility with Alexa, Google Home, and SmartThings, it’s easy to control the light strip with voice commands or through the Kasa app.

The smart LED Light Strip offers a high level of brightness and can display up to 16 million colors, making it perfect for creating unique lighting effects. You can also group multiple strips together for a synchronized effect.

Overall, the Kasa Smart LED Light Strip is a versatile and high-quality lighting solution that offers a range of features that make it a great addition to any smart home. With its ease of use and customizable options, it’s sure to enhance any living space and make everyday life a little more convenient.

Buying guide

Warranty & Support

You can contact the manufacturer directly or visit their website for more information. Manufacturer’s warranties may not apply in all cases, depending on factors like the use of the Kasa Smart LED Light Strip, where the product was purchased, or who you purchased the product from. Please review the warranty carefully, and contact the manufacturer if you have any questions.

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How many lumens are these? Please do not answer “I don’t know” as that is useless; only answer if you know the answer!

Since the KL400 doesn’t utilize white LEDs, there is no technically no measured value of lumens.

However, since the KL400 can simulate white light using color combinations via its RGB LED technology, the brightness of this value is equivalent to 400 lumens.

why don’t you show the power supply in the pictures?

Power supplies are ugly, maybe? It’s a standard “wall wart” type of supply. It’s black.

I want to stick it behind my tv, can i cut it to make corners and reattach them with the l connectors?

To make a 90-degree corner without cutting or soldering:
1. Say you are starting on the left side of the TV (from the back of the TV) going vertically up the back of the TV and want to make a 90-degree turn to the right.

2. At the turning point, make a 45-degree bend to where the LED side is facing away from you and the unattached portion of the strip is now pointing to the left.

3. Then do a 90-degree bend so it comes back over the 45 bend and is now going to the right as desired and the LED side will be facing the same side.
(Reach out if that isn’t entirely clear.)