* Disclaimer: OveReview is reader-supported. We earn commissions from qualifying purchases
Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells

Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells

Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells
$ 19.99

Score By Feature

Based on 617 ratings
Easy to install
9.49
Easy to use
9.29
Value for money
8.78

OveReview Final Score

How Our Score Is Calculated

Product Description

Multiple uses for this 24 Volt transformer - it can be used to power both doorbells and transformers, and can be used simultaneously with multiple thermostats and doorbells, supplying plenty of power for 1 or 2 or 3 devices (2 or 3 at the same time).
STABILITY - The product has a larger power connection, can handle greater loads, and will have a longer shelf life. Copper wire with the XX type has a slight difference in conductivity and a more stable current. There is 10% more wire used than in a conventional inverter. The connection is more stable if 3 or more devices are being charged simultaneously.
This is a transformer for video doorbells such as the Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Zmodo Smart Greet Wi-Fi Video Doorbell, Nest Hello Doorbell and any other devices that require constant 24V power.
Is a portable device used to operate a Honeywell Smart WiFi Thermostat, a Sensi Thermostat, an Ecobee Thermostat, and a An excellent Honeywell transformer for 24 volts
You will receive 1 of the following The accessory is of high quality 3. You can get your money back in 180 days. VIIVRIA offers its customers a professional service team that has been designing and manufacturing transformers for a few years, continuously improving technologies in order to meet consumer demands.

Questions & Answers

With only two copper wires connected to the high voltage electric thermostat, I have an extremely hot environment. fit my new nest thermostat and will it enable me to install it?

A 240-volt AC power supply). In order to be able to switch the heating/cooling device on and off, a 24V to high voltage relay is required to power the 24V AC thermostat (but more parts would be needed if DC). You are right. It is possible. Nevertheless, this is not the only device you will need, there are also legality issues to be considered if you re-use one of these devices This is the level of wiring for the HVAC system.

i have a 2 wire system (red & white) trying to connect a new nest that requires a c wire. will this work, and if it does, how would it be mounted?

What is that thermostat? Is it a Nest? The "red and white" wires should be connected to your existing thermostat, right? Depending on the voltage, it may be right where you need it. There isn't much difference between them, so it might just be a matter of replacing them. As for the voltage required by Nest, I have no idea. Make sure you know your voltage by purchasing a cheap electrical tester at Harbor Freight. Transform 120 volts to 24 volts with the transformer you are looking at. The only way you could make it work with more than just one 12 volt source would be to tap into another 120 volt source, connect it to this transformer and then run a wire to where you will be placing the Nest. However, try connecting it first to your existing wiring.

Do you have 120 volts prewired for this?

The answer is yes.

Wyze Doorbell Cam will this work with this?

No technical information was available for the Wyze doorball cam when I looked it up online. I have listed a thousand questions and answers associated with this item, and you may look through them to determine whether your question has been There are some doorbell cameras that require at least 16 volts (though 24 is not excessive) and the same 40 VA that this transformer needs. You are likely to be able to use it fine, but you should check with the company first to be Here is a translation that may be helpful. There is no definitive information I can provide at this time.

Selected User Reviews For Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells

I was able to install my Ring Pro with no problems, and it had more than enough power
5/5

A Ring Pro was purchased to use with it. The power supply provides more than enough energy and it was easy We are even able to use the old doorbell. Besides the Echo Dot, Alexa Dot was purchased. I bought this in case my wife does not hear the bell. She will hear Alexa's announcement and the ring of the bell If her iPhone shows the video, she can watch it That's true of mine as well.

Elisa Guerra
Elisa Guerra
| May 29, 2021
Two doorbell cameras are more than enough power for the unit
5/5

This transformer is excellent for 24V. The Nest Hello program is running twice. Power is not in short supply. Because that was the most powerful power supply that was available at the big box store, I used a 16V. Despite having a 16V transformer for 7 months and doorbell ringers that wouldn't work at 16V, the doorbell ringers played dead I am now able to hear all doorbell chimes loud and clear with the 24V system. I am very satisfied!.

Vienna GREENWOOD
Vienna GREENWOOD
| Dec 28, 2020
Good value and a great product
5/5

The Ring Pro door bell is ideal for this. The unit was installed in just five minutes to replace an old bad one, and I was in awe. With the extra voltage, the unit is able to function clearly and at night because it maintains adequate power for the unit without overloading.

Maurice Mora
Maurice Mora
| Apr 02, 2021
THis worked like a charm for my ring chime
5/5

I needed it to hook up a new ring doorbell and it worked perfectly. Thank you for the chime. I was not expecting it to work. The delivery was on time, and the job was completed as scheduled. It doesn't get any better than this.

Felix House
Felix House
| Feb 22, 2021
Ring doorbell is very easy to install
5/5

I was able to easily use and install this transformer. My recent purchase of this transformer was intended for the addition of a Ring It's something I would definitely purchase again if the need arises, and I definitely recommend it.

Lilith Burgess
Lilith Burgess
| Oct 31, 2020
Ring Pro is great for this
5/5

As soon as I saw that I would need to install this for my Ring Pro, I did so. My neighbor showed me his Ring Pro and after seeing it, I decided to return my Ring 2. These are two things that never get cited when discussing the Pro We constantly buffer our video so you'll always get a few more seconds on the front of each event, as well as This is a LOT of benefit. Quite often when I used the Ring 2, I saw a delivery man walk away from my house instead of seeing them walk up to it. The grainy black and white in black and white is also less effective at recognizing facial features than color. In addition to the other benefits (look, custom motion zones, etc), it has also been To begin with, let me describe the product. To replace the original, I was mounting the new one next to it, and the old one was sharing the circuit with it. Set-up was very simple. Since my thermostat also uses the low voltage circuit, I chose a transformer with a higher voltage and higher amperage. We shut off the circuit at the breaker, and we rewired the smoke detector and transformer at the same time. It was a standard three-wire connection, and we had to strip a bit more wire so that it would wrap with the other wires we already In order to test outside voltage, I shut off the breaker and flipped it back on, and it came up to Please don't be alarmed by the fact that there are 24 in the shipping label and it All of that is done with a purpose in mind. In the case of a 16 volt battery, it will deliver around 18 volts. It is significant to use 40 VA of amperage in this application. It is recommended that Ring equipment be rated at 24 volts and 40 amps, despite its MINIMUM recommendation of 16 volts and 30 amps. You'll find evidence of this if you look through their online support. I hooked everything up at the outside doorbell and inside the house at the mechanical doorbell, and connected them both to the power, and installed after a few minutes to allow the internal battery to You will see something like "Good" as a Power rating in your Device Health. Once you click Good, it will change to show you the milliseconds There is a value of volts. This should be between 3900 and 4300 for each Ring. My scores are now consistently over 4000 I have a 4050 with this transformer, and my thermostat works as well.

Tinsley Cole
Tinsley Cole
| Jun 13, 2021
I am very pleased with my I purchased this transformer for my ring doorbell pro and am very pleased with it
5/5

I really liked the extra power and it was very easy to install.

Caspian Mann
Caspian Mann
| Apr 03, 2021
If your device is a Video Dorbell, then this transformer is a must-have
5/5

It will be important to have this extra-powerful 24 volt, 40 VA (watts) transformer if you have recently installed a video doorbell and your existing analog chime doesn't sound when it's activated. Although the video doorbell manufacturers assert that their products are compatible with existing doorbell wiring and transformers, typically 16 volts - they are not. The item is advertised as only 10VA (watts), but what they fail to mention is that the unit alerts the app on your phone, but it is so powerful it will not ring the existing analog doorbell each time. It is the right transformer to replace the old one. It is listed by UL and is easy to install if you are an electrician (like me). The existing chime does not work after customers install a video doorbell. I have heard from several customers that this is happening after they install a video doorbell. Using this replacement works very well and is compatible with the Ring , Google, Scout, or any other video unit. There are a few in stock. have received my order the next day, which is great because the pandemic has led to a worldwide shortage of electrical equipment, and my local electrical supply stores are out of stock of these transformers as well as a lot of other items.

Kehlani Lara
Kehlani Lara
| Jun 18, 2021

Related Products For Thermostat / Doorbell Transformer, 24V 40VA Power Supply Compatible With Honeywell, Nest, Sensi And Ecobee Thermostat, Doorbell Transformer For Nest Hello And All Versions Of Ring Doorbells