Kasa Smart Ceiling Fan Control & Dimmer Switch

Meet the Kasa KS240

The Kasa Smart Ceiling Fan Control & Dimmer Switch (KS240) is a premium smart switch that brings two devices into one slender wall plate: a four-speed fan controller and a smooth 1-100 % light dimmer. Slide your fingertip on the left bar to change airflow and on the right bar to set brightness, or tap either bar's LED button for instant on/off. Voice assistants, the Kasa Smart app, and Apple HomeKit all work out of the box, so you can cool the room or dim the lights hands-free.

Key Benefits

• 2-in-1 intuitive design keeps fan and light on a single gang.
• Four selectable fan speeds ensure the perfect breeze every time.
• Full-range dimming lets you set the exact ambiance you want.
• Voice and remote control via Alexa, Google Assistant, Siri, or the Kasa app.
• Schedules & Sleep Mode turn the fan down automatically or fade lights off at bedtime.
• Fade On/Off transitions prevent harsh brightness jumps.
• ETL-certified safety with flame-retardant UL94-V0 housing and overload protection.
• 2.4 GHz Wi-Fi means no extra hub or bridge is required.

Technical Snapshot

Installation Highlights

1. Turn off power at the breaker and remove the old switch plate.
2. Verify separate load wires for fan and light and locate the neutral bundle.
3. Match Line, Fan Load, Light Load, Neutral, and Ground wires using the provided labels and wire nuts.
4. Fit the KS240 into a single-gang box, attach the screwless wall plate, and restore power.
5. Follow the in-app Bluetooth-assisted setup, then add the switch to HomeKit or your chosen voice assistant.

Inside the Box

• KS240 Fan & Dimmer Switch
• Screwless wall plate
• 5 wire nuts & 2 mounting screws
• Wire-identification labels
• Quick-Start Guide

Why Upgrade?

Replacing separate pull-chains or dated rotary controls with the KS240 gives you electronic speed regulation, granular lighting scenes, and smart scheduling-no extra hub required. A single install delivers year-round comfort, energy savings, and instant smart-home cred.

What the Spec Sheet Says (and What I Haven't Tested)

I haven't installed a KS240, so there's no long-term verdict here. What TP-Link's own specifications do tell you is where the limits are. It controls AC-motor ceiling fans of the pull-string type, rated 1.5 A maximum, and TP-Link recommends a fan rating under 60 W. It is not for exhaust fans or DC-motor fans, and TP-Link warns against using it on fans that have integrated speed controls, such as a remote or Bluetooth or Wi-Fi control. The light side is leading-edge (triac phase-cut) dimming, rated 150 W LED or 300 W incandescent and halogen, and TP-Link suggests asking the bulb maker which dimming type a bulb supports.

On features, TP-Link lists two independent touch bars, four fan speeds, 1 to 100 percent dimming, schedules, fade on and off, and a Sleep Mode that automates the fan dropping to low speed after a set time. Voice control covers Alexa, Siri, and Google Assistant, and the switch works with Apple Home. Before buying, check that your fan is a plain AC-motor model, because that is the question that decides whether the KS240 fits at all.

Price, Availability and the Tapo App Question

The KS240 launched at $49.99, and that is still the list price. Amazon has been selling it below that for most of 2026: Slickdeals logged $37.99 in February and the same figure again in early April. TP-Link's own product page shows the switch as "Not Available" with a Buy Now button that hands you to Amazon, which is how Kasa sells most of its switches in the US, not a sign it has been dropped. Is it on the way out, though? There is no end-of-life notice anywhere on TP-Link's site, and the firmware download page is still live, so the honest reading is that it is a current product sold through one channel.

One change since this page was written: TP-Link has been folding Kasa hardware into the Tapo app, and its support FAQ lists the KS240 among the Kasa devices that can be added there, as long as the same TP-Link ID is used in both apps. Schedules, groups and Smart Actions carry over according to TP-Link, but owners on the openHAB forum have reported devices that went missing after linking, so note your schedules down before you migrate. The Kasa app still works for now, and nothing on TP-Link's pages gives a shutdown date.

Pros & Cons

Pros

• Intuitive dual-slider design combines lighting and fan on one control.
• Wi-Fi connection means no extra hub is required.
• Wide dimming range accommodates both LED and incandescent bulbs.
• Apple Home support brings the switch into iOS scenes and automations.

Cons

• Neutral wire requirement rules out boxes without a neutral bundle.
• Single-pole only, so it cannot replace a 3-way circuit without rewiring.
• AC-motor, pull-string fans only, so it won't suit DC-motor fans, exhaust fans, or fans with their own remote.

Overall Evaluation

If you are searching for a smart switch that can tame both airflow and ambiance, the KS240 is hard to beat. It streamlines two wall controls into one, supports scheduling, and lists support for every major voice assistant. Its limitations are wiring and fan-type related, and TP-Link states them in the specifications.

Beyond just smart convenience, the KS240 contributes to a cleaner, quieter home environment. Electronic fan control removes the clicking of pull chains. Its ability to integrate with home automation routines-like turning on the fan when the temperature rises or dimming the lights at sunset-adds meaningful value to daily life. For renters or homeowners alike, the ease of installation and broad compatibility make it a standout upgrade. Whether you're fine-tuning airflow during a summer heatwave or crafting a cozy lighting scene for movie night, this switch becomes a central part of your smart home experience.

A switch like the KS240 shows how small upgrades can change the feel of a room. The ability to tune airflow and lighting with a single touch reduces clutter and keeps controls simple for all ages. Families who juggle busy schedules may appreciate how schedules and scenes maintain comfort automatically, even when no one thinks about it. The pairing that makes this switch interesting is nighttime: light and fan are independent channels on one switch, so a scene can take the lights down gradually while the fan holds a steady quiet speed, which a combined controller cannot do and a pull chain certainly cannot. These small touches add up, making the KS240 an effortless way to enhance comfort, convenience, and long-term energy savings.

About Climate

This product delivers climate capabilities throughout its design.