TP-Link announced the Kasa KS200 smart on/off switch, KS220 dimmer switch and EP40A two-outlet outdoor smart plug on December 7, 2022. All three added Apple Home support to the Kasa range, alongside Alexa, Google Assistant and Samsung SmartThings compatibility. The practical choice is straightforward: KS200 for switching compatible loads, KS220 when the lighting circuit and bulbs support dimming, and EP40A for suitable outdoor equipment within its electrical and weather-protection limits.
What TP-Link announced in December 2022
TP-Link’s December 7, 2022 announcement introduced the KS200, KS220 and EP40A as HomeKit-compatible additions to its Kasa smart-home ecosystem. The release described the KS200 as a smart Wi-Fi light switch, the KS220 as a smart Wi-Fi light-switch dimmer, and the EP40A as a smart outdoor plug. TP-Link said all three were available through Amazon at launch.
The launch manufacturer’s suggested retail prices were $24.99 for KS200, $27.99 for KS220 and $29.99 for EP40A. Those figures and the reported Amazon availability are historical launch information, not evidence of today’s price, stock or regional hardware version.
Which Kasa model fits the job?
| Model | Type | Key electrical limits | Outdoor use | Control platforms and wireless |
|---|---|---|---|---|
| KS200 | Smart on/off wall switch | 100–120 V, 50/60 Hz; up to 15 A general use, 600 W incandescent or 1/6 HP motor | Not an outdoor plug | Apple Home, Alexa, Google Assistant and SmartThings; 2.4 GHz Wi-Fi; Bluetooth 4.2 for setup |
| KS220 | Smart dimmer wall switch | 120 V, 60 Hz; up to 300 W incandescent/halogen or 150 W TRIAC-dimmable LED; leading-edge dimming | Not an outdoor plug | Apple Home, Alexa, Google Assistant and SmartThings; 2.4 GHz Wi-Fi; Bluetooth 4.2 for setup |
| EP40A | Two-outlet outdoor smart plug | 125 V, 60 Hz; up to 15 A/1,875 W or 1/2 HP motor | IP64; two outlets individually controlled | Apple Home, Alexa, Google Assistant and SmartThings; 2.4 GHz Wi-Fi |
What is the difference between Kasa KS200 and KS220?
KS200 is the standard on/off switch
The KS200 provides remote and automated power switching; it does not provide brightness control. TP-Link lists a 100–120 V, 50/60 Hz input, a 15 A general-use maximum, up to 600 W of incandescent lighting and a 1/6 HP motor limit. Those are manufacturer ratings, so the connected load and the circuit still need to be suitable for the exact model and local electrical requirements.
#1 Best Overall
- App-Guided Install: The Kasa or Tapo app guides you through step-by-step setup. Requires neutral wiring and 2.4 GHz Wi-Fi. Consulting an electrician is recommended if you’re unfamiliar with electrical wiring
- Control From Anywhere: Monitor your light status. Turn electronics on and off from anywhere with your smartphone using the Kasa app, whether you are at home, in the office or on vacation
- Voice Control: Enjoy the hands-free convenience of controlling the lights in your home with your voice via Amazon Alexa or Google Assistant; perfect for times when your hands are full or entering a dark room
- Scheduling: Use timer or countdown schedules to set your smart switch to automatically turn on and off while you're home or away. Enable ‘away mode’ to randomly switch on and off to trick potential intruders
- Trusted and Reliable: Designed and developed in Silicon Valley, Kasa is trusted by over 4 million users. UL certified for safety use. Dimensions without panel 4.13*1.71*1.74 in. System Requirements: Android 5.0 or higher, iOS 10 or higher
KS220 is a dimmer
The KS220 is intended for compatible dimming circuits. Its published limits are 300 W for incandescent or halogen lighting and 150 W for LED lighting that is explicitly TRIAC-dimmable. It uses leading-edge, phase-cut dimming. A bulb being labelled “LED” does not by itself establish compatibility; verify that the lamp is dimmable and suitable for this dimmer technology.
How to choose
- Choose KS200 when you only need on/off control or your load is not approved for dimming.
- Choose KS220 when variable brightness is required and every connected lamp is compatible with its TRIAC/leading-edge specification and wattage limit.
- Before either installation, check the product’s wiring instructions, the circuit configuration, voltage, load and regional version. The published specifications do not establish a universal fit for every home.
Does the Kasa KS200 work with Apple HomeKit?
Yes. TP-Link lists the KS200 as compatible with Apple Home (HomeKit), Amazon Alexa, Google Assistant and Samsung SmartThings. The switch uses 2.4 GHz Wi-Fi, while Bluetooth 4.2 is listed for setup. Confirm the model number, hardware revision and platform availability for your country before buying, because regional versions can differ.
Rank #2
- App-Guided Install: The Kasa or Tapo app guides you through step-by-step setup. Requires neutral wiring and 2.4 GHz Wi-Fi. Consulting an electrician is recommended if you’re unfamiliar with electrical wiring
- Control from Anywhere: Monitor your light status. Turn electronics on and off from anywhere with your smartphone using the Kasa app, whether you are at home, in the office or on vacation
- Voice Control: Enjoy the hands-free convenience of controlling the lights in your home with your voice via Amazon Alexa or Google Assistant; perfect for times when your hands are full or entering a dark room
- Scheduling: Use timer or countdown schedules to set your smart switch to automatically turn on and off while you're home or away. Enable ‘away mode’ to randomly switch on and off to trick potential intruders
- Trusted and reliable: Designed and developed in silicon valley, Kasa is trusted by over 4 million users. UL certified for safety use. System Requirements: Android 5.0 or higher, iOS 10 or higher
Does the KS220 work with the same smart-home platforms?
Yes. The KS220 product information lists Apple Home, Alexa, Google Assistant and Samsung SmartThings, with 2.4 GHz Wi-Fi and Bluetooth 4.2 for setup. Platform support does not remove the electrical requirement that the dimmer and the lighting load be compatible.
Is the Kasa EP40A outdoor plug waterproof?
TP-Link describes the EP40A as IP64 dustproof and waterproof for rough outdoor weather conditions. IP64 means protection against dust ingress and water splashing from all directions; it is not a promise that the plug may be submerged or exposed without regard to installation conditions. Keep the included weather-resistant socket cover capping unused outlets, as TP-Link instructs.
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- App-guided install: The Kasa or Tapo app guides you through step-by-step setup. Requires neutral wiring and 2.4 GHz Wi-Fi. Consulting an electrician is recommended if you’re unfamiliar with electrical wiring
- 3-way or single pole: Using it as 3-way or single pole switch to control the light from 1 or 2 locations to replace your traditional 3-way switch. Best for top and bottom of a staircase or from house to garage etc
- Control from anywhere & voice control: Use the Tapo or Kasa app to turn lights on/off from anywhere, whether you are at home, in the office, or on vacation. Enjoy hands-free control with Alexa or Google Assistant.
- Scheduling: Use timer or countdown schedules to set your smart switch to automatically turn on and off while you're home or away. Enable ’away mode’ to randomly switch on and off to trick potential intruders
- Trusted and reliable: Designed and developed in silicon valley, Kasa is trusted by over 4 million users. UL certified for safety use. Fade bedroom lights as your child falls asleep or give yourself time to exit a room without bumping into things
Outdoor capacity and outlet control
The EP40A is rated at 125 V, 60 Hz, with a maximum load of 15 A/1,875 W and a 1/2 HP motor rating. Its two sockets have separate power buttons and status LEDs and can be controlled independently. Check the starting current and duty cycle of motors, pumps, tools or lighting before connecting them; the maximum rating alone does not prove suitability for every device.
Wi-Fi placement matters
EP40A uses 2.4 GHz Wi-Fi. TP-Link cites up to 300 feet in an open area, but walls, building materials, obstacles and other network conditions can reduce coverage substantially. Judge reach at the actual outdoor receptacle rather than treating the open-area figure as a guaranteed household distance.
Rank #4
- App-Guided Install: The Kasa or Tapo app guides you through step-by-step setup. Requires neutral wiring and 2.4 GHz Wi-Fi. Consulting an electrician is recommended if you’re unfamiliar with electrical wiring.
- Control From Anywhere Turn electronics on or off from anywhere with your smartphone using the Kasa App (Compatible with Android and iOS)
- Voice Control: Enjoy the hands-free convenience of controlling the lights in your home with your voice via Amazon Alexa, or Google Assistant. Perfect for times when your hands are full or entering a dark room.
- Gentle Off: Tailor your lighting to fade on with a click of the switch or a double-click to gently fade off the lights while your child drifts off to sleep.
- Advanced Scheduling and Timer: Use timer or countdown schedules to set your smart switch to automatically turn on and off while you're home or away. Enable Away Mode to randomly switch on and off to trick potential intruders. Dimensions without panel 4.13x1.71x1.74 in. (105x43.5x44.21mm)
Does EP40A work with Alexa and Google Home?
Yes. TP-Link lists Alexa and Google Assistant support, as well as Apple Home and Samsung SmartThings. Each outlet can be addressed independently in automations, provided the plug has a suitable 2.4 GHz connection and the selected platform supports the model in your region.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Installation and buying checks
- Identify the exact model and regional hardware version; KS200 and KS220 are wall switches, while EP40A is a plug-in outdoor device.
- For a wall switch, verify the circuit arrangement, voltage, connected load, bulb type and the manufacturer’s wiring requirements before turning off power and installing.
- For KS220, confirm every lamp is dimmable, TRIAC-compatible and below the applicable 300 W incandescent/halogen or 150 W LED limit.
- For EP40A, confirm the appliance or motor stays within 15 A/1,875 W and 1/2 HP, use the cover on unused sockets, and place the unit where its IP64 protection is appropriate.
- Check that reliable 2.4 GHz Wi-Fi reaches the installation point. Bluetooth is specified for setup on the switches, not as the ongoing control network.
- After installation, verify local manual operation and each outlet or dimming function before creating automations.
What the launch pricing does—and does not—tell you
The 2022 MSRPs document TP-Link’s launch positioning: KS200 at $24.99, KS220 at $27.99 and EP40A at $29.99. They should not be used as current retail prices. Check a live retailer listing for present price, inventory, shipping region and the exact hardware version.
Best Value
- 【3 WAY SMART DIMMER SWITCH】Replaces traditional 3-way switches found in living rooms, stairways, and hallways. Adjust lighting remotely via the Tapo or Kasa app for energy savings and convenience of smart technology
- 【1%-100% DIMMING with SCHEDULING】Adjust to your desired brightness directly from the elegant switch or via the Kasa app. Set light schedules to turn on/off with desired brightness for night lighting or gentle waking
- 【APP-GUIDED INSTALL】The Kasa or Tapo app guides you through step-by-step setup. Requires neutral wiring and 2.4 GHz Wi-Fi. Consulting an electrician is recommended if you’re unfamiliar with electrical wiring.
- 【VOICE & APP CONTROL】Control the lights via your voice with Alexa or Google Assistant. Use the Tapo or Kasa App to monitor and adjust lighting from anywhere – whether you are at home, in the office, or on vacation.
- 【TRUSTED & RELIABLE】ETL certified. Supports incandescent bulbs up to 300W or dimmable LED bulbs up to 150W. 2-year warranty. Kasa is trusted by over 7 Million users
Frequently Asked Questions
Can I use a KS220 with any LED bulb?
No. The LED must be dimmable and compatible with the KS220’s TRIAC, leading-edge phase-cut method, and the total LED load must remain within 150 W.
Can the EP40A outlets be controlled separately?
Yes. TP-Link specifies individual control, with separate power buttons and status indicators for the two outlets.
Does IP64 mean I can submerge the EP40A?
No. IP64 covers dust protection and water splashing, not immersion. Keep unused sockets capped and follow the installation and electrical limits.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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