Zemi testsmart : ZigBee switch without Tuya neutral / Smart Life

The family of Tuya connected switches / Smart Life without neutral gets bigger. And it seems that ZigBee technology is now favored thanks to its low power consumption. Wi-Fi switches work great, but some require the use of a capacitor, which can be quite a pain to set up.

Earthsmart is really a specialty of this type of switches. It is again the Shenzhen brand that is bringing a new device operating in ZigBee to the market. What will differentiate it from the others is that it is not tactile like the vast majority, but mechanical. This can be an advantage, especially for 2 or 3 ways, which you can inadvertently switch on by touching. Due to its protocol, it will not saturate your Wi-Fi, but requires a Hub Tuya / Smart Life.

Zemi switchsmart ZigBee without neutral exists in one, two or three ways. This is, once again, exclusive to Les Alexiens, at a very affordable price (around € 22 for this A71XA range).

Earthsmart A71XA: without neutral, built-in and master key

Installation and pairing

Do not dwell on the packaging of the range because it is not the strong point of the brand. They are delivered in a light brown cardboard box without embellishment except for a label announcing the reference (X711A for one lane, X712A for two channels, etc.) and the type of device: number of channels, ZigBee without neutral et pushbutton. These are boxes also used for Wi-Fi switches. Moreover, the manual supplied with is a multi-product manual. Note despite everything, the presence of hard printing on the cardboard of the safety rules. Kind attention not to lose a customer… definitely.

You will find in these boxes, with a post apocalyptic design, not only theswitch without neutral and the instructions, but also a bag of 2 screws for installation. For information, if you were wondering, "vis" comes from Latin vitis (I see that some have just lifted their ears) which indicates the twisted part of the plant stem, itself coming from vieo (turn). And both in the plural and in the singular, we always write “vis” because this word ends with an “s” in the singular.

At the visual level, it is a change of tone compared to the other products tested which were all based on the same mold: tactile with glass front. Here, we are on a design that is much more versatile in the sense that it takes up that of the push buttons to which we are more accustomed. Finally, we find them rather pretty and modern. Whether he is in one, two or three way, its size will always be the same: 8,5 cm side for a maximum total thickness of 4 cm. Why maximum? Because there is 2,5 cm block transplanting and 1,5cm button thickness on the part that stands out the most, ie towards the bottom of the switch. We therefore find a form of French switch, but with a much larger push-button area because it also replaces the hubcap, which surrounds the assembly on the standard interposts.

Some may find that the size of the pressure area for a single channel is a bit big compared to that of standard switches. But it is a choice. In all cases, we recommend at least two routes even if you only have one bulb. You will understand why later.

"[…] Rounded corners giving a fairly harmonious impression of the whole" The Alexians

At the material level, nothing to say. We are on a ABS type plastic, resistant to wear, deformation, light and strong. No salient angle but rounded corners giving a fairly harmonious impression of the whole. At the bottom of each push button you have a small area which will light up depending on the status of the switch: red when it is on and off when it is… off, there you go…. No finishing problem observed on the 3 products tested.

Le transplanting block is round, which is perfect to fit into our French flush mounting boxes. Previous test of a ZigBee Zemi switchsmart was good but the square block made its installation a bit haphazard. At the connectivity level, there is indeed the arrival of the phase of the circuit and those of the bulbs. No neutral, phew !!! The wire fixing system is solid and qualitative. Nothing to say at this level.

Let's go inside if you don't mind. We are not going to reverse engineer the switch because what interests us is clearly visible. You can see that the contact system is not the same type as those in our previous tests. Here, no spring or sensitive plate which may eventually fail. We are on mechanics with mini push buttons. This seems to herald greater longevity as they are advertised for several million cycles of use. The outer buttons are mounted on steel plates acting as springs. In all cases, it is these 4-pin micro-switches that will ensure contact.

At the level of technical characteristics : it works on alternating current 100-240V, 50 60-Hz and a nominal power of 5 to 200 W per channel. If you have a series of bulbs or spots, then pay attention to the cumulative power. He is ZigBee 3.0 compatible, but not Philips Hue or the bridges built into Amazon Echo (it remains compatible Alexa However).

ZigBee switch without neutral A71XA: installation and pairing

Tuya switch assembly diagram / Smart LifeBefore installing your switch, take minimum precautions because we cannot afford to lose readers and YouTube followers ! So turn off the power, or at least the switch on your board. You can also call in a professional, but there is no particular difficulty.

Disassemble your switch already in place by properly identifying the connections (do not hesitate to take a picture) and redo the same connection on your new one Earthsmart A71XA… It will be connected in the same way: the phase of your circuit on Lin and the return phase of your lamp on L1 for the first channel, L2 for the second…. No capacitor necessary or other system for maintaining the electrical voltage because the ZigBee protocol requires few resources in energy to function (a battery is sufficient).

“In 5 minutes, it's settled. " The Alexians

Before inserting the switch into the transplanting box and screwing everything back on, turn the power back on to make sure there is no problem with the connections. You can then press the microswitches to test them. If the connections are made correctly, you will have a red LED that lights up when the switch is ON. You can also switch it to pairing mode to make sure everything is working fine. In 5 minutes, it's settled.

Earthsmart A71XA: use of the switch without neutral via a Hub and Smart Life

Like any ZigBee product, you need a hub to make it work. But beware, the Philips Hue Hubs or those of the speakers Amazon Echo About us, Plus and Show 2 are not compatible. So we used the ZigBee 3.0 wireless bridge from Zemismart.

To install the switch on Smart Life, it must be entered into pairing mode by pressing one of the micro-buttons for about 10 seconds. You will see that it will flash quickly via blue LEDs. Then in the app Smart Life, select your Hub, press "Add a sub-element". Then let the app take care of the rest, it will find it in a few seconds. You can now change the name of the device. This is the general name which will make it possible to manage all the channels.

When you select the switch through the app, you will find that it will be displayed as if it is physically in front of you. That is to say that you will see the 1, 2 or 3 channels depending on the reference you have installed. Each switch can be renamed at your convenience. In our case, we have renamed only the first one because it is the only one that physically corresponds to an unconnected bulb and therefore will require a reliable name. The other two will be used for scenarios, so the name does not matter.

There are also shortcuts at the bottom of the page to turn on or off all virtual buttons suddenly, put in place timers for the switch or make it light up at certain times. Via the scenarios of Smart Life, you can make it turn on or off at particular times of the day (sunset for example) or in specific situations (shutters closing and light coming on immediately).

The good news is that, while working with a third-party bridge, the ZigBee Zemi switchessmart go directly under Alexa like Google Assistant. They can therefore be controlled directly by voice without having to resort to scenarios and routines as is sometimes the case with unrecognized ZigBee elements. Hence the fact of choosing the name you are going to give to each route.

In use, there is no vocal problem. The responsiveness is very good thanks to the ZigBee. In physics, it behaves like a standard switch, because it does. The aspect pushbutton is very well rendered with the little noise that goes well. It is really perfect and, unlike the tactile switches we have tested, it is not backlit.

What is really interesting is doing additional physical and voice commands : you can turn it on by voice and turn it off in physics, and vice versa. You can see this in our video.

We have prepared a little bonus for you concerning the realization of scenarios to use the unused buttons as switches for connected products.

Earthsmart A71XA: the little extra of 2 and 3 ways

As we announced to you, if you have connected elements such as a switch in a ceiling light, led tapes or even a connected bulb at another end of the house, you can turn them on and off with the supernumerary channels of the Earthsmart A711A and A712A.

We will show you how to build your scenario under Smart Life. You are free to do whatever you want in terms of automation.

Go to scenario, then press the + top right to create a scenario. Then in the part "Define a condition", select "When the device status changes". Then come and select your switch and then the channel that interests you (of course, not the one linked to your bulb). Finally, select the status. We will do the scenario for the mode " WE ". So, as soon as you press switch 2 (or name it), the scenario will start. Now you have to tell him what to do.

The second part will consist of going into "Run device" (not in the literal sense), to go on select from the list and come choose status that it will have to take (ON in our case, but the choice is yours). Press next and all you have to do is save. Simple isn't it? You can now do the scenario to turn it off, starting with the same model.

Be reassured that these scenarios will work with any device connected under Tuya, whether it is Wi-Fi or ZigBee. But it is necessary that your switch is in the cases connected in ZigBee.

To conclude this test, Earthsmart still offers us an excellent product. We didn't really find any fault with it apart from putting the front back in place, which is a bit tedious. But if not, that's good: he has a cool design, it is mechanical, it settles down without neutral and without capacitor, it has a round transplanting block and it goes up directly under Amazon Alexa and Google Assistant. For about 22 € on Amazon. Fr, it is an unbeatable quality / price ratio.

Earthsmart / Yagusmart : ZigBee switch without neutral for Tuya / Smart Life

NS. 20 €









Price quality



  • Easy installation
  • Price
  • No neutral!
  • No capacitor!
  • Round transplanting block

The lessers

  • Replacing the slightly delicate facade
Did i choose Alexa or did she choose me? Let's say that as a beta tester, it's a bit of both! And I do not regret having met our favorite assistant nor this adventure undertaken with Alexien Modo. Technophile, self-taught and loving popularization, I try to make our common passion easy to access!