Updated October 2026
Data from the official Lutron and TP-Link sites.
2026 verdict
The TP-Link Kasa KS200 wins this matchup as the cheaper, hub-free switch, but the Lutron Caseta Diva Smart Dimmer Switch is the one to choose if dimming or a wallbox without a neutral is the priority.
The Kasa installs on 2.4 GHz Wi-Fi with no bridge, pairs natively with Apple Home, Alexa, Google Home, SmartThings and Home Assistant, carries a two-year warranty and costs less. The Diva is a true dimmer on Lutron Clear Connect RF that needs no neutral and keeps working as a plain dimmer through any outage, but nothing about it is smart without the separate Lutron hub, it dims lighting only and it carries a one-year warranty. Pick the Kasa to switch a light cheaply in any ecosystem, and the Lutron Caseta Diva Smart Dimmer Switch when you need to dim and the box has no neutral.
vs
Winner
28% OFF
$14.35
$19.99
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Lutron Caseta Diva Smart Dimmer Switch | TP-Link Kasa KS200 | Winner |
|---|---|---|---|
| Price | $69.95 | $14.35 | TP-Link Kasa KS200 |
| Rating | 4.7 | 4.5 | Lutron Caseta Diva Smart Dimmer Switch |
| Warranty | 1 year | 2 years | TP-Link Kasa KS200 |
| Connectivity | None | 2.4 GHz WiFi | TP-Link Kasa KS200 |
| Max Resistive Load Power (Per Switch) | 600W | 600W | Tie |
| Safety | Overheating protection | None | Tie |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant | Tie |
| Switches | 1 | 1 | Tie |
| Energy Monitoring | NO | NO | Tie |
| Status LED | YES | YES | Tie |
What the differences mean
Dimming
The Lutron Caseta Diva Smart Dimmer Switch dims, up to 600 W of incandescent or halogen and 150 W of dimmable LED or CFL. The TP-Link Kasa KS200 is an on/off switch with no dimming, so a fixture that needs to dim rules the Kasa out.
Neutral wire
The Lutron Caseta Diva Smart Dimmer Switch is a two-wire dimmer that needs no neutral, which is why it fits older wall boxes. The TP-Link Kasa KS200 requires a neutral wire, the single most common reason its install does not go ahead.
Hub and protocol
The TP-Link Kasa KS200 joins 2.4 GHz Wi-Fi directly with no bridge. The Lutron Caseta Diva Smart Dimmer Switch runs on Lutron Clear Connect RF and needs the Lutron Smart Hub before it is smart at all, though that is also why it keeps working when the router does not.
Ecosystems
The TP-Link Kasa KS200 reaches Apple Home natively and adds Alexa, Google Home, SmartThings and a local Home Assistant path. The Lutron Caseta Diva Smart Dimmer Switch reaches the same ecosystems, but only through the Lutron hub, and it has no Matter certification.
Load type
The TP-Link Kasa KS200 is rated 15 A general use, 600 W of incandescent and a 1/6 HP motor, so it can switch a ceiling fan. The Lutron Caseta Diva Smart Dimmer Switch is rated for lighting loads only, 600 W incandescent and 150 W dimmable LED.
Warranty
The TP-Link Kasa KS200 carries a two-year warranty, and the Lutron Caseta Diva Smart Dimmer Switch a one-year one. On a wired device that stays in the wall, the Kasa offers the longer cover out of the box.
Which one to buy if
- the wallbox has no neutral wire
The Lutron Caseta Diva Smart Dimmer Switch is a two-wire dimmer built for retrofit, where the TP-Link Kasa KS200 requires a neutral.
- you need to dim the lights
The Lutron Caseta Diva Smart Dimmer Switch dims incandescent, halogen and dimmable LED, while the TP-Link Kasa KS200 is on/off only.
- you want the cheapest smart switch with no hub
The TP-Link Kasa KS200 joins Wi-Fi directly and is the lower priced option, with no bridge to buy first.
- you want to switch a ceiling fan
The TP-Link Kasa KS200 is rated for a 1/6 HP motor and ceiling fan load, which the Lutron dimmer is not.
- your home runs Apple Home and you want local control
The TP-Link Kasa KS200 pairs natively with Apple Home and keeps working in Home Assistant with internet blocked.
$69.95
- + Rating: 4.7
- - Price: $69.95 vs $14.35
- - Warranty: 1 year vs 2 years
Winner
28% OFF
$14.35
$19.99
- + Price: $14.35
- + Warranty: 2 years
- + Connectivity: 2.4 GHz WiFi
- - Rating: 4.5 vs 4.7
What owners say
Owners of both switches value reliable daily operation and quick installation, and both groups describe setups that simply keep working. The split is in what they notice. TP-Link Kasa KS200 owners focus on speed and connectivity: setup in minutes, no noticeable delay from Siri, Alexa or the app, native HomeKit pairing by QR code and a Home Assistant path that survives the internet being blocked, with warnings about the neutral requirement, single pole wiring and the fixed locator light. Lutron Caseta Diva Smart Dimmer Switch owners focus on living with the switch: they like that guests can use the paddle and slider with no instructions, they set the high and low trim to cure LED flicker, and their recurring complaint is cost, since the hub is a separate purchase before anything is smart.
Frequently Asked Questions
Which is better: Lutron Caseta Diva Smart Dimmer Switch or TP-Link Kasa KS200?
For dimming a light or fitting a box without a neutral, the Lutron Caseta Diva Smart Dimmer Switch. For a cheaper, hub-free switch that joins five ecosystems and can also drive a ceiling fan, the TP-Link Kasa KS200 is the better buy.
What is the biggest difference between the Lutron Caseta Diva Smart Dimmer Switch and the TP-Link Kasa KS200?
Dimming and wiring. The Lutron Caseta Diva Smart Dimmer Switch dims lighting on a two-wire, no-neutral install through the Lutron hub, while the TP-Link Kasa KS200 is a Wi-Fi on/off switch that requires a neutral wire and needs no bridge.
Does the Lutron Caseta Diva Smart Dimmer Switch need a neutral wire?
No. It is a two-wire dimmer for retrofit, so it installs in boxes with only line and load. The TP-Link Kasa KS200 does need a neutral wire in the switch box.
Does the TP-Link Kasa KS200 work with Apple Home and Matter?
It supports Apple Home natively and adds Alexa, Google Home, SmartThings and Home Assistant. It is not Matter certified, and neither is the Lutron Caseta Diva Smart Dimmer Switch, so both rely on their own integrations.
Who should buy the Lutron Caseta Diva Smart Dimmer Switch?
A home with an older, neutral-free wallbox that needs to dim a lighting circuit, where the reliability of Clear Connect RF and the ability to add a Pico remote without new wiring are worth the hub cost.
Who should buy the TP-Link Kasa KS200?
A single pole circuit in a box with a neutral, in a household that wants a budget switch with native Apple Home, Alexa, Google Home, SmartThings and local Home Assistant, or needs to switch a ceiling fan.
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