Kasa Smart

Kasa Smart LED Light Strip

Name: Kasa Smart LED Light Strip, 16.4ft WiFi LED Strip Works with Alexa, Google Home, SmartThings, High Brightness with 16 Million Colors, RGB, Grouping
Brand: Kasa Smart
SKU: B09BG9B2JQ
Price: 24.99 USD
Availability: InStock

Bottom line: The Kasa Smart LED Light Strip ($24.99 on Amazon as of 2026-10-06): 16.4 ft length, cuttable and bendable to fit desks, shelves, or TV backs; main trade-off: needs 2.4 GHz WiFi and the Kasa app, so no local-only or hub-free setup.

$24.99

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Buy on Amazon — $24.99 Compare to similar rgb & lighting

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-06

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

✓ 16.4 ft length, cuttable and bendable to fit desks, shelves, or TV backs
✓ 16 million colors at high brightness and saturation, not washed-out pastels
✓ Preset animated effects work out of the box, no scene-building required
✓ Alexa, Google Assistant, and SmartThings support plus the Kasa app
✓ Smart Actions chains it to Kasa cameras and other Kasa devices for scenes

Cons

✗ Needs 2.4 GHz WiFi and the Kasa app, so no local-only or hub-free setup
✗ Controller must connect in the arrow direction, which limits mounting choices
✗ Cutting the strip is permanent, so a bad measurement is unrecoverable
✗ 3M adhesive can lose grip on textured or dusty surfaces over time

Manufacturer description

The Kasa Smart LED Light Strip KL400L5 gives you 16.4 feet of addressable RGB lighting that you can bend, cut to length, and mount with the included 3M adhesive backing. It renders 16 million colors at high brightness and saturation, so it holds up as accent lighting behind a TV, along a desk, or under a gaming rig rather than washing out in a lit room. Animated lighting effects ship as presets, giving you movement without building scenes from scratch. Control runs through the Kasa app from anywhere, or by voice through Alexa and Google Assistant, and the strip also works with SmartThings…

SpecPicks Verdict

SpecPicks scored Kasa Smart LED Light Strip using a rating × review-volume × price-fit model applied to published specs and reviews across the rgb & lighting category. Kasa Smart's rgb & lighting lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for rgb & lighting of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How long is the Kasa KL400L5 light strip?

It is 16.4 feet long. The strip can be bent around corners and cut shorter if your run needs less than the full length.

Does it work with Alexa and Google Home?

Yes. The KL400L5 works with Alexa, Google Home, and SmartThings, and you can also control brightness, color, schedules, timers, and away mode from the Kasa app from anywhere.

Can I cut the strip to a shorter length?

Yes, the strip is designed to be cut and bent to fit your space. Note that the KL400 controller must be connected in the direction shown by the arrow on the strip.

How long do the LEDs last?

The strip is rated for up to 25,000 hours of use. Actual life depends on brightness settings and how many hours a day you run it.

Is it good enough for a gaming setup or TV backlight?

It targets exactly that use. It offers 16 million colors with high brightness and saturation plus animated effects built for TVs, gaming rigs, and parties, and it is highly rated by buyers.

Key Features

[High brightness & saturation] The 16.4ft LED light strip features customization up to 16 million colors with high brightness & saturation for the best lighting throughout your home.
[Animated lighting effects] The Kasa Smart 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.
[Complete control] You can control your 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.
[Adjustable length] 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.
[Grouping and Smart Actions] 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.

Full Specifications

Brand	Kasa Smart
Color	Multicolor
Style	16.4 ft
Theme	Movie
Voltage	12 volts
Wattage	13.5 watts
Occasion	Party, Christmas
Unit Count	16.4 Feet
Form Factor	Strip Lights
Item Length	16.4 feet
Light Color	RGB
Connectivity	WiFi
Model Number	KL400L5
Power Source	AC
Material Type	Polyimide
Product Style	16.4 ft
Control Method	Voice
Item Type Name	Smart Light Strip
Controller Type	App Control, Button Control, Remote Control, Voice Control
Item Dimensions	196.85 x 0.39 x 0.08 inches
Full listing title	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)

Ready to buy?

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) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $24.99

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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