TP-Link Tapo Matter Smart Dimmer Switch: Voice Control w/Siri, Alexa & Google Assistant, UL Certified, Timer & Schedule, Easy Guided Install, Neutral Wire Required, Single Pole, Tapo S505D

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.

Although the instructions for the smart app use could have been clearer and it would have helped if the QR codes had not been at the bottom of the box, the wiring diagram for install was good. The recognition of the switch by the Apple Home app worked seamlessly and the Home app led me through test of install (app made the network connection supplying password etc). Installation of my second switch took 20 minutes or less. I am using sunrise-sunset control (Home app option), working well. I had considered using light sensor bulbs, these switches are effective, provide more control options and are more economical. Could not be happier, with the function of the switch, integration with my Apple Home app (instructions call the app “Matter”) and designer look of the switch.

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.)

I recently installed the TP-Link Tapo S505 smart switches in my home, replacing an older 3-gang setup, and I’ve been really happy with how smoothly everything went. One of the first things I noticed is how much slimmer these switches are compared to older smart switches I’ve used. That might not sound like a big deal, but when you’re cramming three switches into one box with a bunch of wires, every millimeter counts. The reduced thickness gives you way more room in the back for wire management, which made the install way less stressful. And since they’re UL certified, I felt confident they’re safe to use without cutting corners. Wiring was surprisingly simple—especially the fact that either black terminal can be used for line or load. That’s a small but huge win because it means you don’t have to stress about matching the exact wire to the exact terminal. For someone who’s done a few DIY electrical jobs, that flexibility saves time and guesswork. The app setup was fast and intuitive, and within minutes, the switches were online and responding. I already use a bunch of TP-Link devices, so I’m familiar with their app, but even if you’re new, I think you’d find it straightforward. Bonus: once they were in the Tapo app, they showed up instantly in Home Assistant, which I use to control everything. No weird delays or pairing issues. The only thing to remember is that these need a neutral wire, so they won’t work in older setups that don’t have one. But if you’ve got the neutral, these switches are a solid choice—especially at this price. They’re reliable, responsive, and blend well into my smart home setup. I also like using the scheduling and timer features to turn lights on/off automatically.

Increíbles, elegantes de buen materiales y al ser matter funciona en Apple o cualquier otro asistente

Ce lot de deux interrupteurs intelligents Tapo Matter m’a vraiment impressionné par sa simplicité d’installation et sa compatibilité parfaite avec mon écosystème SmartThings. La configuration s’est faite en quelques minutes seulement, sans aucune complication. Depuis, ils fonctionnent sans faille : la réactivité est excellente et la connexion stable. Un produit fiable, bien conçu et idéal pour moderniser facilement son installation électrique. Je recommande à 100 %.

So far so good! This product was extremely simple to install, and even easier to set up using the Tapo App. The dimmer buttons are very tactical and offer a solid click when pushed. The on/off button has a good spring-like action when pushed. The App also offers tons of automations and customizations. For example, between the hours or 11PM and 6AM, I limited the brightness to 25% so if I need to turn on the light in the middle of the night, I'm not blinded!

Tp link adding matter support is great!

Muy bueno para un ventilador. Los únicos inconvenientes en mi caso, para el uso mencionado, son: -Los 7 niveles de los BOTONES FÍSICOS del dimmer para un ventilador de este tipo, no se pueden usar todos, solo son útiles los tres niveles más altos, en este orden: séptimo mñaxima velocidad, sexto media velocidad, quinto velocidad muy suave, pero agradable ...y de ahí hacia abajo, para un ventilador, los niveles de los botones físicos ya no son utilizables. -En la aplicación, se pueden personalizar 5 niveles, y en el caso de mi ventilador, programando tales niveles a 72%, 80%, 85%, 90%, 100% obtengo todo el rango de velocidades de mi ventilador, desde muy suave y silencioso, hasta viento violento, lo cual con los controles manuales del ventilador no es posible. -Desafortunadamente los niveles de los botones físicos, no se pueden personalizar como sí es posible mediante la app; aún así, como lo indiqué en el primer punto, esos tres niveles son muy prácticos. Si bien, este dimmer/atenuador está diseñado para luces y no para ventiladores, estoy bastante contento con los resultados con mi ventilador tipo industrial. ACTUALIZACIÓN DICIEMBRE 2025: Actualmente el dimmer YA SE PUEDE CALIBRAR desde la aplicación, en "calibración de atenuación". Con esto, la atenuación mínima y máxima, se ajusta por única vez; y con ello ya son 100% útiles cada uno de los 7 niveles de los botones físicos. En resumen, la desventaja inicial ya es cosa del pasado, ya funciona perfecto con mi ventilador, ya sea mediante los botones físicos, o mediante la app. Lo único que desearía, es que la escala de intensidad quedara encendida todo el tiempo en que está encendido el dispositivo (ya que esta se apaga en unos cuantos segundos), en fin, es un pequeño detalle, pero a más de un año de mi compra inicial estoy muy contento