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Tapo Matter Smart Dimmer Switch, S505D, Single Pole, Need Neutral Wire

Based on 825 reviews
Condition: New
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$18.98
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Oct 30
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At a glance

Condition
New
Style
Dimmer
Size
1-Pack
Model
Tapo S505D
Dimensions
5.04 x 3.33 x 1.78 in
Color
White
Material
Plastic
In the box
Tapo S505D×1Wall Plate×1Wire Nuts×2Screws×2Quick Start Guide
Warranty
2 year manufacturer

Features 7

  • Smart Single Pole Control - Simple wiring setup - just replicate your old switches, and the smart switch automates the rest. Neutral wiring, 2.4Ghz Wi-Fi and Tapo App required for setup.
  • Full Dimming Control (0-100%) - Control the brightness of your lights to set the ideal ambiance for any occasion.
  • Remote App & Voice Control - Manage your lights anytime, anywhere via app or voice commands with Alexa, Siri, Google Assistant, or Samsung Bixby.
  • Set Custom Schedules - Schedule your lights to turn on, off, or be dimmed at specific times, aligning with your daily routine and preferences.

Description

Introducing the TP-Link's 1st Matter Smart Dimmer Switch Tapo S505D! With Matter certification, it's compatible with all major smart home platforms - Apple Home, Amazon Alexa, Google Home, and Samsung SmartThings. Enjoy smooth LAN control, Multi-Admin access, easy guided install, and voice control. Monitor and control from anywhere with advanced scheduling and timer options. Plus, trust in Tapo's reliability and UL certification with a 2-year warranty.

Specs 33

Operation Mode Off,Smart Switch
Current Rating 2.5 A
Operating Voltage 120 volts
Contact Type Normally Closed
Connector Type Screw
Brand Tapo
Switch Type One-way
Terminal Screw

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


Reliable Control with a Future-Proof Build: TP-Link Tapo Matter Smart Dimmer
Style: Dimmer Size: 1-Pack
The TP-Link Tapo Matter Smart Dimmer Switch is a standout because it finally brings the reliability of a major brand to the open Matter standard. If you are looking for a switch that feels like it will last as long as the house, this is a top contender. Durability and Build Quality • Physical Construction: The build is impressive. Unlike budget smart switches that use thin, creaky plastic, the Tapo feels dense and premium. It has a nice weight to it that suggests high-quality internal relays. • Tactile Feedback: The main paddle provides a crisp, satisfying click. It avoids that "mushy" feel found in cheaper alternatives, which is usually the first sign of a switch that will fail after a few thousand presses. • Software Longevity: A huge part of durability is "future-proofing." Because this supports the Matter protocol, it isn't tied to a single app that might become obsolete. It will stay compatible with Apple Home, Google Home, and Alexa for years to come. • Terminal Strength: The wiring terminals on the back are sturdy. When tightening the screws during installation, the housing doesn't flex or crack, ensuring a solid, safe electrical connection that won't loosen over time. Real-World Performance • Smooth Dimming: The digital dimming curve is very refined. It doesn't "step" or flicker between brightness levels, which actually helps extend the lifespan of your LED bulbs by preventing sudden voltage spikes. • Connection Stability: TP-Link is a networking company first, and it shows. The Wi-Fi radio inside is resilient, meaning it won't "burn out" or constantly drop offline, which is a common death sentence for generic smart switches. • Aesthetic Finish: The plastic is UV-resistant, meaning it won't turn that ugly yellow color after a few years of exposure to sunlight in your room. Pros • Matter support ensures it works with any ecosystem you choose. • Solid, tactile buttons that feel like traditional high-end hardware. • Very responsive; almost zero delay between the app command and the light changing. • Fade-in and fade-out features add a "luxury" feel to your lighting. Cons • Requires a neutral wire, which may be an issue for older homes. • The back of the switch is slightly bulky, requiring a bit of "cable tetris" in crowded electrical boxes. Verdict The TP-Link Tapo Matter Dimmer is a "buy once, cry once" piece of hardware. It offers incredible value because it bridges the gap between a high-end mechanical switch and a sophisticated smart device. It’s built to be used every day for a decade, not just a couple of years. ... show more
Reviewed in the United States on December 24, 2025 by NiyalPatel

Great switches that are easy to install, look great and have great dimming.
Style: Dimmer Size: 2-Pack
These worked great for my application - dimming undercabinet LED lights. I connected this to a 24V dimmable LED driver (B0CPLLMKHH) that supports triac dimming and fits in a single gang box. The driver was connected to 24V dimmable FCOB LEDs (B091KG5K1Q) that will be in some aluminum channel. No flicker, no noticeable delay and super easy setup. I already have several light switches from Tapo, but these were the first Matter ready ones, so I was surprised when I opened my phone and Google assistant was asking for the number or to scan the QR code. I scan the code, named the device and it was done. Then when I opened Tapo app, it too just wanted me to name the device and location. I will say that the Tapo app handles the dimming better in that as you are dragging the slider the lights dim live whereas in Google, you have to let go of the slider for it to actually send the value to the switch. I also tested the voice command and it worked as expected, so that is great too. The switches come with faceplates that have hidden fastners, which I like, however I don't use them anywhere else in the house, and these switches will get in a multi gang box, so they will end up in the trash, which is a shame. Overall, I'm very happy with my purchase. ... show more
Reviewed in the United States on January 11, 2026 by S. Conway

Backbone of my smart home lighting – 50+ device Tapo system
Style: Dimmer Size: 2-Pack
TP-Link Tapo Matter Smart Dimmer Switch – Voice Control with Siri, Alexa & Google Assistant This is the primary dimmer switch running in my smart home lighting system. I currently have more than 50 TP-Link Tapo devices installed throughout my house, including switches, dimmers, outlets, and plugs. These dimmer switches are a core part of that setup and control many of the lighting routines across the home. The dimming performance has been excellent. They handle LED bulbs very well with smooth dimming and no flicker, which is something I’ve run into with other dimmers in the past. One of the big advantages is Matter support. Since these switches can operate locally, they respond quickly and continue functioning even if the internet connection is down. Reliability has also been very good. After more than a year of use, I’ve only had one switch that needed a full reboot and reset, which is impressive considering the number of devices running in the system. The Tapo ecosystem has been easy to manage as well. I run several other Tapo switches and outlets throughout the house, and they integrate seamlessly together. The system also works well alongside TP-Link Kasa devices, and everything can be managed through the same app. While I do use Alexa for voice control, I actually prefer using the routines within the native Tapo app. The automation options there are a bit more flexible and work very reliably. Overall these have been very stable and have become the backbone of my smart lighting system. ... show more
Reviewed in the United States on March 12, 2026 by CMFmotorSports

great purchase.
Style: Dimmer Size: 1-Pack
I have added these throughout my home. I bought the matter supported ones (to allow pairing to Apple home). They are easy to install and setup. The hardest part is you need to know the load vs line but that can be easily figured out with a voltage detector. These are quite large in the box - so if you are tight in space in the electrical box, it can be a challenge to put these inside. The primarily control can lights that were installed in my house. Bonus feature you can program them to turn on /off when you want to give your home a lived in look when you are away. I also have a few of the 3 way switches which come with dimmers for both switches. Love this brand - I have pretty much standardized on it. (I think I have 9 total switches). ... show more
Reviewed in the United States on July 11, 2026 by Steve D

Two Stars for me
Disappointed in these and the function. Setup was easy and I really like the ramp up/down for the lights attached. The problem is with manually turning the switch off it loses its connect to the wifi. I tried making all the switches have a static IP and still are unable to be controlled with WiFi if turned off manually. I should have bought more Kasa switches as they function better. Edit: after months they suddenly work as they should. Unknown if there was a firmware update or what. But these are fine now. ... show more
Reviewed in the United States on September 8, 2025 by Erica Witt

Great Switches and App compatability. Dimmers work great with my LED Bulbs
Style: Dimmer Size: 2-Pack
These are working great so far. I replaced some old WeMo dimmer switches that are no longer supported. They are easy to install and get setup with the Tapo App. I can control them with any smart home with Voice control. The dimmer can be calibrated for Low to high settings. They can also be set on a timer in the app. I have used them with Siri and Alexa devices. Will definitely purchase more for my home. Dimmers work great with my LED Bulbs ... show more
Reviewed in the United States on March 23, 2026 by MLem

Heavyweight champ of Matter-over-WiFi switches & dimmers.
Style: Dimmer Size: 2-Pack
Reliable switch, great firmware, app, and customer service support. This is the switch that you would expect from an excellent networking company! Well done Tapo / TP Link! I have approximately 30 of the dimmers and 3 or 4 of the on/off switches running in a Home Assistant-controlled smart home. For those of you with HA - your best bet is to go through HACS and download the Tapo Controller. If you're not using Home Assistant, well...what are you thinking? The dimmers & switches are ultra-reliable, fast-acting, and seem to have some baked-in self-healing WiFi routines. Nice work software/firmware team! Even after power is cycled on multiple breakers, the switches continue to try to re-establish their WiFi connection. Over a few days, they all return to the "white circle", fully connected status. If you're impatient, you can press the right button below the main switch on each of these to power cycle the switch and re-initiate the WiFi connection process. Some of these dimmers I am running as no-load remotes to control multiple other bulbs and switches. Even in those applications, response time is almost instant. The command always goes through and usually with imperceptible delay. Okay, so I've had these installed for about 20 months now and I haven't been without issues. I had an overnight failure of ten, yes 10 of the dimmer switches right around the 18-month mark. They were on separate circuits and kind of all over the house, some were right next to another dimmer that did not fail in the same junction box with the same hot/neutral/ground lines attached. While it looks a little like a failed firmware update, I just don't know for sure. There was no storm or electrical activity that night and nothing else in my electronics-heavy home was damaged. Anyway, TP Link honored the 2-year warranty. Yes, I had to jump through a few hoops, mostly answering honestly too many questions and return shipping is on the buyer to get replacements. It also took about a month, which is too long TP Link! But I did it all through the proper channels and TP Link did replace the failed switches with brand-new units. Overall, this is a really solid product from a reliable company. I do think at a budget price-point, this is the best choice for Matter-over-WiFi for North American smart home users. Would Matter-over-Thread be better? Almost certainly! It's just not available yet. (Hint, hint TP Link.) ... show more
Reviewed in the United States on December 12, 2025 by Tech Junkie

TP-Link Quality Switch
Style: Dimmer Size: 1-Pack
I had started on my smart home journey many years ago and had initially used Belkin Wemo switches for my light fixtures. The Wemos never worked well, and I had switched them all out a number of years ago, replacing them with TP-Link Kasa switches, which have been trouble free and worked great with both Alexa and the Kasa app. I have 5 Kasa dimmer smart switches and I recently decided to add another one. In my search on Amazon I did find the Kasa switch but also saw that there was a newer model, which is this Tapo model. It looks to be the same as my Kasa switch, but also supported Matter. The Tapo switch looks and installs just like the older Kasa model. With installation, it's straight forward, but key is having the neutral wiring as not all homes have them. You will also need to be a distinguish between the line and load wires (not important in older switches), so having a non-contact voltage tester would be helpful. The hardest part of the installation is tucking away the wires to get the switch to fit inside the wall box. The snap on cover plate gives the switch a nice clean look. With the switch installed, the next step is adding it to the app. It does not work with the old Kasa app, but the good news for me was that the Tapo app will work with my older Kasa smart devices. I downloaded the Tapo app and signed in with my TP-Link account, and it immediately populated all of my Kasa devices. Adding this switch was easy, just clicking on the "+" button and selecting the product. It found it right away and only took a few minutes. I have always liked the Kasa app and the Tapo app looks to be even better, as it's intuitive, though I will need some time to try out the features. On my Alexa, I did unlink my Kasa skill and then linked the Tapo skill, though not sure if I really had to do that. Alexa found the Tapo switch right away and works as expected in controlling it. As Tapo supports Matter, I did also add it to Apple Home Kit. None of my older switches support Home Kit, so this is the only smart switch on Home Kit. To add to Home Kit, it just requires the QR code from the device, which I did not find in or on the box, so I initially thought it's probably on the back of the switch, which didn't make much sense to me. However, in looking at the device in the Tapo app, there was an option to show the QR code, so problem solved. Adding to Home Kit was also quick and easy once I had the QR code. I have over 2 dozen TP-Link smart devices in my home setup. All of them are in the Kasa line except for this new Tapo switch. I can attest to the quality of their devices and am happy that TP-Link is continuing to bring new functionality to their line. ... show more
Reviewed in the United States on September 7, 2025 by Seattle Techie
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