Z-Wave dimmer switch hardware recommendations

Hello everyone!

I am looking for z-wave based battery powered wall dimmer switches in Germany.

I have checked Amazon.de and the general web and the result is astoundingly sparse. Maybe my google filter bubble is too strong or there really is a bad market for those things in Germany.
I could not find a single dimmer that didn’t have either a review average of 3 stars (bad) or was not available in storage.

Are there any Germans who are using z-wave dimmers that could recommend them and an appropriate USB stick to me?

I am currently using EnOcean dimmers, but they are so spotty even without walls in between them and the usb receiver that I wanted to give Z-Wave a try.

If you have any other perhaps even better suggestions for my issue, I would also be happy to hear about them.

In German:

Ich suche hier in Deutschland Z-Wave Aufputz-Dimmschalter . Ich finde auf Amazon nur Schalter die sehr schlecht bewertet sind, oder nicht auf Lager sind. Auch meine sonstigen Google suchen haben mich nicht weitergeführt. Hat jemand gute Erfahrungen mit Schaltern gemacht, die er mir empfehlen könnte?
Ich versuche derzeit meine EnOcean Schalter zu ersetzen, da diese selbst ohne dazwischenliegende Wände eine miserable Zuverlässigkeit besitzen.
Falls jemand noch einen anderen Vorschlag haben sollte, wäre ich auch sehr dankbar.

Thanks for any help!

There are no battery powered dimmers. Doesn’t make sense as you need to have mains power attached, too, to run the light, does it? Also, you won’t find any actuators to include a switch or turn knob.

Get the Fibaro FGD-212 and attach a standard momentary switch.

Mal auf Deutsch: es gibt keine ZWave-Dimmschalter, und schon gar nicht batteriebetrieben oder Aufputz.
Was es gibt, sind Unterputz-Aktoren. Die kann bzw. muss man in die Dose unter einen herkömmlichen Wandschalter montieren. Bei dimmbaren Lichtern nimmt man besser einen Taster. Auf/Abblenden funktioniert dann, indem man die Taste gedrückt hält.
Die meisten hier verwenden Fibaro-Aktoren. Es gibt auch noch welche von Qubino, ansonsten Importe (Aeon, Philio, …)
Der FGD-212 ist ein Phasenan/abschnittsdimmer für 230V Leuchtmittel.
Alternativ gibt es auch den Fibaro FGRGBW. Das ist ein PWM-Dimmer. Daran kann man 12V oder 24V LEDs mit 4 Kanälen anbringen. Das ist eigentlich für RGB(W)-Strips gedacht, man kann aber genausogut 4 einzelne weisse Strips oder LEDs oder auch Halogenspots anbringen. Der hat auch einen 0-10V Eingang je Farbkanal, an welchen man dann herkömmliche
Dimmerdrehschalter anschliessen kann, wenn man denn unbedingt Drehknöpfe haben will.
Das macht so aber heute kaum noch einer. Szenenbasiert automatisch dimmen ist smarter.

Hallo Markus, danke für deine Antwort!

Da habe ich mich wohl falsch ausgedrückt, das tut mir leid. Ich meine wirklich bloß den Taster. Das Dimmen machen bei mir die Glühbirnen schon über funk (hue). Das heißt ich brauche wirklich nur batteriebetriebene Funktaster an der Wand, die mit meinem Server kommunizieren. Sowas habe ich bisher von EnOcean. Die machen das ganze aber ohne Batterie, sondern mit Energy Harvesting durch den Tastendruck.
Mit “Dimmer” meinte ich, dass es eine hoch und runter Richtung auf dem Schalter gibt. also so ein “Kippschalter”? Bin mir bei der Nomenklatur nicht ganz sicher.

Sorry nochmal für das Missverständnis.

hi
thanks for your explanation.
can I install a fgd-212 with a combo “aeonz-stick gen5”, oh2 and openhabian only? or do I need a “fibaro home center” to configure my z-wave network and update fibaro components (as eg the fgd-212)?
thanks for your help.
simon

Das altgewöhnte Schalter-festhalten/drehen-bis-Lichtlevel-erreicht funktioniert systembedingt nicht gut über Funk und erst recht nicht über Systemgrenzen (ZWave oder EnOcean nach Hue) hinweg, weil sich da Latenzen aufsummieren.
Deswegen würde das normalerweise auch niemand so bauen.
Man kann zwar jeglichen Schalter (ZWave oder irgendeine andere von OH unterstützte Technologie) zweckentfremden, aber wenn der Schalter nicht per Kabel mit dem Leuchtmittel verbunden ist, funktioniert das für zeitkritische Abläufe wie händisches Dimmen nicht gut. Deshalb gibt es auch keine Nur-Taster, die zum Dimmen gedacht sind.
Für Hues gibt es eine eigene Fernbedienung.
Ansonsten macht man sowas halt szenenbasiert, d.h. auf irgendeinen Trigger hin (kann ein Szenario-Taster sein oder Uhrzeit oder Bewegungsmelder oder sonstwas) von OH aus den Dimmlevel setzen (via Hue binding).

Of course.

No, you don’t need it.

Btw, FGD-212 allows for attaching another switch (not related to the also-attached light), so you can have a scenario switch.

Ja soweit stimmt das natürlich, aber die Fernbedienung von Hue ist auch nur ein zigbee Funkprotokoll, welches die gleichen Probleme hat wie etwaige Z-Wave schalter.
Aber das erklärt natürlich, warum es da keine Taster für Z-Wave gibt.
Die Hue Schalter wären super (ganz besonders bei dem super niedrigen Preis), wenn es da nicht ein Problem gäbe: ich kann auf diese Schalter nur durch permanentes Polling an der Hue bridge in OpenHab reagieren.
Da ich die Schalter aber durchaus für meine eigenen Szenen benutze (Dimme das gesamte Wonzimmer auf 10% und Schalte den Fernseher ein), sind die Hue Schalter so leider noch nicht brauchbar für mich.

Das bedeutet, dass ich noch immer etwas ratlos bin in meinem Ansinnen die EnOcean Schalter durch etwas mehr zuverlässiges zu ersetzen, schade…

Sonst noch eine Idee?

Das ist nicht dasselbe, weil dann zumindest keine Umsetzung zwischen Protokollen stattfindet. Solange man innerhalb ZigBee bleibt, sind die Latenzen erträglich.

Nichts für ungut, aber du hast dich etwas im Technologiedschungel verheddert und musst erst die Zusammenhänge richtig verstehen.
Du mußt dich lediglich von der Idee, direkt/live dimmen zu wollen (Taste festhalten und Ergebnis mitverfolgen …) verabschieden oder dafür die Hue Fernbedienung benutzen.

Für Szenen benötigst du keinen Hue Schalter, sondern kannst jeglichen an OH angeschlossenen Schalter verwenden, auch einen ZWave und vermutlich sogar deinen Enocean-Schalter (wenn du dein EnOcean-Gateway von OH aus ansteuerst). Man kann auch z.B. an den FGD-212 auch einen zweiten Schalter anschliessen, der nicht direkt einem Licht zugeordnet ist und als reiner Szenarienschalter fungiert.
Darauf kann man in einer OH rule triggern und dann einfach den Befehl an die Hues geben auf 10% zu dimmen.
Mache ich in meinem Wohnzimmer auch genau so.
So, und Weiteres bitte wieder in Englisch …

Thanks for your time and effort! It is greatly appreciated.
I do feel like I understand the “technology jungle”. And the latency is not the problem here. The whole thing does work fine with EnOcean, exactly the way I want them to. When the switch is only a meter or two away from my usb receiver for EnOcean it works perfectly. Even the holding and releasing of the dimmer switch. I have no Problems there. My problem lies with the reach and reliability of the Signal, not its latency. I also don’t mind it not working in 5% of cases. But the switch in my Bedroom has a reliability of about 40% and there is only a single wall between the switch and the usb receiver.
My hope was, that the signal would be a bit stronger with a system that uses batteries rather than energy harvesting.
So I really only need a solution that provides more reliability on the wireless communication. If there isn’t anything that provides at least a 90% reliability at about 6 meters and a single wall, then I really wonder why anyone would ever bother with a wireless solution.
Aside from that: The hue protocol (ZLL) seems a lot more stable. I have about a 99% reliability when controlling my bulbs with the Hue bridge. I do know that they use a mesh-approach, but my bedroom bulb is about 7 meters away from the nearest other hue bulb and there is a wall in between, so somehow the reliability of that protocol or the sender/receiver hardware must be better. Using the Hue switch is problematic for the reasons that I mentioned. although when my goal is to only control hue lightbulbs with them, then of course this would work. What about my kitchen switch that controls both an EnOcean relay to switch of plain old lightbulbs and also 3 hue bulbs? That is the one that would cause the most trouble really. And for that I need a reliable wall switch.
I can’t believe that nothing like that exists.
Sorry for being so persistent, this issue has been driving me a bit nuts in the last months. xD

Well, ZWave should be much better than 90% - certainly here, it’s pretty much 100% reliable in my house. If you’re getting low reliability from ZWave or ZigBee then it’s probably because the distance is too much - although 6 meters shouldn’t be an issue unless maybe you have reinforced concrete walls.

Well your problem is an architectural one, that’s why my ‘jungle’ comment.
First, it’s the fact that you don’t have wires between switches and lights. This is fine for non timing critical light switching, but not as good for dimming.
Second, it’s EnOcean. Unlike ZWave and ZigBee, that protocol is even more optimized to minimize energy consumption, because devices need to generate energy themselves.
So they send with minimum power possible (whatever that ultimately is), fewer or no retransmits, and more.
I’m no expert there, but I read that at least recent EnOcean versions allow for deploying mains powered repeaters to effectively form a mesh like in ZWave or ZigBee. You could try adding one. It should act like an amplifier. But don’t blame me if it does not solve your problem. This is an openHAB forum, not one on radio engineering…

I’d fundamentally change the setup: wire actuators to lights and switches, use a standard bulb in the kitchen, you can reuse your Hues elsewhere.
Or replace your EnOcean switch with a zwave one and give up on the live dimming capability (or simply try, for sure latency will increase, but maybe it still works somehow).

Aha see this is exactly what I was suspecting, so that is why I wanted to replace most of my enocean switches with something that has a bit more power and hopefully range. I had thought that Z-Wave could fill this role, but couldn’t find the proper hardware. Hence this post asking for buying tips.

Oh, very nice, this could actually also solve my problem. I will check out the internet for such a device.

This is gonna be difficult, since basically ALL my bulbs are already Hue bulbs and I really do love them for their reliability, ease of install and the fancy color stuff.

So my plan was to do exactly this over the holidays just as a test run with a single z-wave switch. However, I still am no further with finding a decent switch that someone might give a good review and that costs less than about 50€ (but even in that price category and above I am not sure where best to find such a thing).
I have now bought two Hue wall switches as well, simply to use where I am only dimming hue lights and not doing anything else, they should work fine for that task and are cheap. But in other cases I would really like to try something else.

As a very extreme last resort I thought about getting one of those Dresden Electronics raspberry pi shields and then coupling it with a hue wall switch and then sending messages to OpenHab whenever it receives events from the switch. But I am absolutely not sure that the switches are even compatible. There is a switch directly from Dresden Electronics but it is very expensive.

Regarding the increase in latency; Could you explain why? Should it not have the same latency as the EnOcean Setup that I have right now? In both cases I have a protocal change-over via OpenHab. In my current case it goes from EnOcean to ZigBee and the same would happen for Z-Wave. Is Z-Wave so much slower?

Cheers again for your input, I am very thankful!

have you ever done an update of the firmware with a z-stick only (without a fibaro home center)?

The FGD-212 is a zwave switch, just without the switch :slight_smile: You can / need to attach two traditional switches, could be any for 5€ (die typischen Doppelwippen sind letztlich zwei Schalter, aber es funktioniert auch mit einem Taster. Der macht dann bei einem Tastendruck heller und beim nächsten wieder dunkler, je nachdem wie lange man festhält).
Plus you need a ZWave gateway into openHAB, obviously. Aeon USB stick or the RaZberry card which I use, which I believe is from Dresden Electronics, too).

Err, no it shouldn’t be substantially slower. I forgot you already are using a gateway in your current setup. Just wondering that it is working satisfactorily.
Btw, there’s color ZWave bulbs available, too. Using one of those plus a ZWave switch, you could get away without using a gateway (to add latency) inbetween. And unlike with the Hue switch, you can still use the ZWave actuator/switch to power another (directly attached) light, or use switch inputs to activate scenes beyond lighting or anything. I have a FGD-212 powering a dimmable light (including the momentary switch for classic operation) plus another switch that if pressed once, opens my TV door. On double and triple presses, it activates different light scenes.

Again: that’s not a recommended way of building an automated home. You really should wire your switches to actuators and lights. At least for those that you want to dim using switches.
In the long run, that’s cheaper, too. You haven’t had to replace a complete Hue yet just because the bulb is broken, have you ?

No. It’s not implemented it OH, but it wouldn’t work anyway as Fibaro does not provide the firmware (except through Home Center).

The hardware choice really depends on the conditions where you plan on installing it.
I only have experience with two z-wave dimmers, the fibaro dimmer2 and the Qubino.

Some differences:

Fibaro dimmer2 works with 2 wire systems (i.e if you don’t have the neutral lead wire, this will be your only option)
Fibaro dimmer2 is a a bit thicker than the Qubino (for me this is an issue when using Schneider Renova).
Fibaro dimmer2 supports up to 250W whereas the Qubino supports ~140W (double confirm with manual)
Fibaro dimmer2 needs about 50W load to work, otherwise you have to get the dimmer2 bypass.
Fibaro dimmer2 has auto calibration, the Qubino will require configration
Qubino dimmer support low loads 0.1 W

Basically for me it boiled down to:
I use Fibaro dimmer2 where I have the 2-wire system
I Use Fibaro Dimmer2 where I have more than 140W
I Use Qubino dimmer2 where I have the neutral lead wire and I’m using LEDs with lower load.
It is possible to add a temperature sensor DS18B20 to Qubino

For me the fact that the Qubino is not as thick is important as well.

I suggested reading up on the pros and cons of the dimmer you are interested in.

Regards, S

The Fibaro, as already mentioned, allows for attaching another scene controller switch.
Another difference that I found to be important: you can double-tap the Fibaro’s switch, that makes it go 100% brightness instantly. You’ll find that useful in a number of use cases. The default single tap will result in most recent brightness setting on both, Fibaro and Qubino.
I also believe the Qubino can also run on 12 or 24 volts to directly control LEDs, but that’s off the top of my head, I might misremember.

It is possible to double click the Qubino as well:
See parameter 21:

http://qubino.com/download/990/

Qubino has room for 2 additional scene controllers.

Really not promoting Qubino, I have one atm and 4 fibaro dimmer2. :slight_smile:

+1 for this - I’ve added a Qubino recently in one room (Fibaro for the rest of the house) and really miss this feature.

Thanks for all the comments!
It would seem that if I am going to go down the Z-Wave road I am going to have to actually install the hardware into the wall. I am going to have to think about this. In this regard this thread has been extremely informative.
I will see what I can get done in the next weeks.