Best door bell transformers according to redditors

If it’s got the wires providing power, perhaps it’s too weak? Had to get this for a new ecobee, because I didn’t have a C wire available. If you have a plug nearby it may work?

24 Volt Transformer, C Wire...

https://www.amazon.com/dp/B07DJ7RHS5?ref=yo_pop_ma_swf

Wiring it "correctly" is a pain in the ass as you apparently need to wire it back to your fusebox, which depending on where it is, can be annoying in an already finished house.

I ended up buying one of there and just fed the wire to a plug on the other side of the wall. Works perfectly and I didn't have to pay someone $500+ to wire up my doorbell.

The hardwire issue can resolved by just buying one of these. I use this and you can just plug in the doorbell straight to an outlet inside the house. I got my grandmother a Ring doorbell since it was cheap and she didn't need much, and I used one of those adapters with it since the having to charge the device every once and a while I knew was going to cause issues with her.

You could also get one of these: https://www.amazon.com/gp/product/B07DJ7RHS5/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Check your doorbell transformer. We had a 16V 10VA when I first installed the Ring Pro and was getting video issues and the mechanical bell would barely ding (not full ding dong; we have 2 mechanical bells).

Replaced the transformer with a 16V 30VA (from Amazon) and it's all good now.

EDIT: Adding link to the transformer I ordered and installed: https://www.amazon.com/NuTone-C907-16V-30VA-Transformer/dp/B001POBN92/

Like this - https://www.amazon.com/OhmKat-Video-Doorbell-Supply-Compatible/dp/B07BNDHR5Q

No, they will still recommend a higher one as soon as you have any issues.
I had the 10VA at first and it seemed to work fine, but eventually it seems it affects the internals of the unit causing issues.

I'd save the headache and get a new one.
This is the one I got on Amazon for $24:
NuTone C907 16V, 30VA Transformer

It replaced my existing one with little effort.

Ring $100/yr and save an extra $20. The Ring Pro is solid, they are now in a 3gen for it which I just received 2 days ago as a replacement. (Old Pro was marked as needed replacing by ring for some reason). To do it right make sure you have the right transformer. Ring offers one but you can find a NuTone on Amazon a bit cheaper. .
The Alarm is solid, zwave+ platform (also zigbee) and don’t forget to get the smoke alarms so you can print out a full cert to give to your home owners for a discount on premium.
Within the last few days, Amazon alexa released the Guard update turning all your echos into smoke/co listeners and glass break detectors. IMO, it was the last thing missing from the ring alarm.
The issue with the pro is running the wrong transformers to power it. My 1st pro lasted 6mo, 2nd 1.5yrs and now I got my 3rd which has a slight different build, they also included 2 angle wedges with the unit.
The smart lock thing is slick, just make sure to visit their site to see which is compatible.

Lastly, if you’re going all in with Ring, stay away from battery cameras and invest in a mesh system that has triband and mu-Mimo to prepare you for the future of IOT.

GOOD LUCK!

> Since I’m renting I’m not allowed to drill into the walls or doors or add anything like wiring.

Do you have a doorbell? The Ring doorbell camera (and other brands) just needs a powered doorbell. Even if you don't have a powered doorbell (ie, I don't, I just have a door knocker), I got a adapter for the AC outlet (https://www.amazon.com/gp/product/B07454STN2/) to provide power. There are also wireless camera options that are battery-powered (I hear Blink aggressively marketed recently).

It's easier & less stressful to ask forgiveness (or forfeit your deposit), than get a copy of the police report post-incident.

> I've always felt safe with the low probability of a stranger wandering to my door of all doors in the building.

> I only have one entry door and I’m high up so windows are secure.

I recommend installing a layered defense. This comment links/describes some inexpensive easily-installed perimeter hardening accessories. Three-inch wood screws are cheap, and provide warning time/distance for a further response.

https://www.reddit.com/r/CCW/comments/4zd2gt/last_night_was_weird_or_why_i_carry_at_home/#d6uqyzd

Probably a doorbell transformer, like this or this.

I didn’t measure the voltage. I bought this.

https://www.amazon.com/NuTone-C909-Tri-Volt-Transformer-Chime/dp/B001PO7MY2

It’s plugged into the 16v 20va section. That was the set my doorbell transformer was originally plugged into.

Updating this... I've installed the new transformer recommended by pandaman1784 ( https://www.amazon.com/NuTone-C907-16V-30VA-Transformer/dp/B001POBN92 ) and I do get 18-20VAC from the door bell wiring behind the ring when measuring but looks like the ring pro has a pulsing white light... rings the internal chime, setup button still has no effect what so ever and if I push the door bell the white light goes out completely after the blue circle and then after a few seconds to a minute goes back to a pulsing white light (Reboot?).

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At this point figured I'd wait it out maybe 30mins see if it does anything different with the extra voltage and if it's still behaving funny take it back to the BestBuy and exchange it? Any other ideas?

Pictures of new vs old transformer:https://imgur.com/a/BGDBM8l

New one had a ground wire but I also had no ground point so I capped that off, old had no ground wire.

UPDATE 2: Got impatient, exchanged it... worked just as well as the last one was able to link it to my ring account get it connected on WiFi etc. The only issue I have now is Live view showed a black screen and then I started just getting "Streaming Error" after that with no live view and no motion events or etc... could have swore after connecting the first one the motion events were almost immediate and I'd get the notifications in the app; guess this kinda warrants a separate thread though as it's no longer a low voltage issue/confirmed that even though I had low voltage the other one seemingly was damaged.

You'll need to swap your existing transformer for one that outputs higher voltage, like this one: https://www.amazon.com/Doorbell-Transformer-Comptible-hello-Certified/dp/B07H334M46

It's easy... takes 5 minutes. Just make sure you shut off the breaker first.

(Not an electrician) The transformer will probably not power 2 doorbells. However, you could easily power a second one using a third party plug-in power adapter that you could hide somewhere. Like this one. Just be sure to double-check your ratings for where you live.

That link is wrong because you don't have a doorbell. That kind of transformer only works with an existing doorbell.

If you don't have a doorbell, you'll want something like this:

https://www.amazon.com/OhmKat-Video-Doorbell-Supply-Compatible/dp/B07BNDHR5Q

Doorbell transformer

http://www.amazon.com/Morris-Products-78204-Transformers-16V10VA/dp/B005GDFM04/ref=sr_1_14?ie=UTF8&qid=1457161273&sr=8-14&keywords=doorbell+transformer

Yes, the pro will ring the mechanical chime.

You will need to install a compatible chime kit:

https://support.ring.com/hc/en-us/articles/209028546-Ring-Video-Doorbell-Pro-Chime-Kit-Compatibility-List

​

I would also suggest upgrading the transformer to a 30VA unit and ditch what comes with the chime:

https://www.amazon.com/NuTone-C907-16V-30VA-Transformer/dp/B001POBN92

There's actually an AC adapter you can buy that's specifically meant to work with it: https://www.amazon.com/dp/B07BNDHR5Q/ref=cm_sw_r_cp_api_i_myC3BbFCDHJ7H. Been using it with mine because I had no doorbell. Works great for me.

I'm not an electrician, but it definitely sounds like a transformer issue. At least that is where I would start. You can get one for under $20 and it's a 5-10 minute job assuming yours isn't too hard to get to.

If it helps, this is the one I went with for my Nest Hello and it's working fine with no issues at all - Newhouse Hardware 30TR Door Bell Transformer, 16v 30va, Compatible with Ring Video Doorbell Pro UL Certified https://www.amazon.com/dp/B07HKQ4GC3/ref=cm_sw_r_cp_apa_i_GTpyCbZ73Q8BV

I think the VA rating matters more than the actual voltage - and you wouldn't need to replace your chime. Something like this - 16V but 30VA instead of the more common 10VA.

You're running a 10V / 50VA now? Sure it's not .5A?

*edit - decimal place

NuTone C907 16V, 30VA Transformer https://www.amazon.com/dp/B001POBN92/ref=cm_sw_r_cp_apa_A1tBzbEE476A2

this is usually what people recommend: https://www.amazon.com/NuTone-C907-16V-30VA-Transformer/dp/B001POBN92

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I personally use it as well. no problems keeping the Pro powered and mechanical chime ringing like normal.

I was thinking bandwidth/wifi, but thats not the case, at least in my short time running tests. I'm running 3 ubiquity ac-pros and a custom built pfsense router. I've ran multiple tests on bandwidth, dropped packets, wifi signal etc and it's rock solid. The only thing that makes sense is my transformer isn't providing a consistent level of power. I wasn't even leaning that direction until another user said they had a very similar issue.

Also, when dealing with power having it sit inside in a controlled environment isn't even close to the same as having it outside in the cold and having multiple variables.

Here's the transformer I purchased. NuTone C907 16V, 30VA Transformer https://www.amazon.com/dp/B001POBN92/ref=cm_sw_r_cp_apa_6AbRAbQKW84XA

The one I got is currently not available right now on amazon but it is this one

UEi Test Instruments UET34 Ringer Transformer https://www.amazon.com/dp/B00IDW2CJY/ref=cm_sw_r_cp_api_a77QAb5Y1ZQP5

That Nutone will work perfect and you shouldn’t have any issues.

That's the transformer. It has a 16VAC/10VA output, which will not be sufficient for a Ring Pro setup. My house initially had a similar transformer and I replaced it with a 16VAC/30VA transformer.
Here's a link: https://www.amazon.com/gp/product/B001POBN92

https://www.amazon.com/gp/aw/d/B07DJ7RHS5/ref=ppx_yo_mob_b_inactive_ship_o0_img?ie=UTF8&psc=1


This is what I’m using and haven’t had an issue what so ever.

Some have stated that you really need a 30VA transformer for a ring pro connected to a mechanical chime. I had problems with freezing when the doorbell was rung but that all went away when I upgraded my transformer to this one:
https://www.amazon.com/gp/product/B001POBN92/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1

You need to change the chime with its internal PSU and put in a transformer.

Had a quick look at the info on your chime here https://nicorlighting.com/product/18888-prime-chime/

Which tells me your chimes internal PSU is rated at 12VDC 6mA output. This works out to 0.1W.

The Eufy doorbell FAQs say the doorbell needs 16-24VAC at 30VA, so needs a higher voltage, needs AC not DC that your chime produces, and needs a higher power rated transformer (30VA or around 24W minimum.)

Edit: something like this, assuming you are in America with 120VAC 60Hz mains https://www.amazon.com/gp/aw/d/B07L9X9V57/ref=psdcmw_6291372011_t1_B07GND8RMQ

https://www.amazon.com/gp/product/B001POBN92/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

30A. Works like a charm.

I got this at the recommendation of Ring customer support based on my physical doorbell model: https://www.amazon.com/gp/product/B001POBN92/

Purchase a 30va 16v transformer from Amazon. That will solve the low voltage issue. Worked for me and solved the problem. The issue is amps not voltage on the line.

This is the one to buy from amazon. https://www.amazon.com/gp/product/B001POBN92/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

I have the Pro set up as well. Looks like what was happening when I set mine up. Come to find out that since I had it at an older house, the doorbell transformer wasn't strong enough and causing it to 'reset' since it would drop power and 'reconnect' back to power. It was only a 10VA transformer. I read it somewhere on some forum that you need to make sure your doorbell transformer is around 30VA. I bought this one off Amazon, installed it and have not had any issues since. The flashing typically means it's in setup mode waiting to connect (even though you may have already connected it once before).

I don't know if that's an old house thing or some homebrew fuckery by a previous owner. Even in the 40s, doorbells were wired to a 16v or 24v transformer somewhere by the breaker box or the doorbell itself. I wouldn't expect to see batteries in any doorbell setup older than maybe 2000. If you find a transformer, you've got the option to replace with a proper wired doorbell (even one of the video doorbells, if you so choose).

Otherwise, just get yourself a wireless doorbell. They range from basic battery operated units to slightly fancier with multiple plug-in chimes for different areas throughout the house and garage.

This is the one that I ordered.

NuTone C907 16V, 30VA Transformer https://www.amazon.com/dp/B001POBN92

The one you listed above showed 20-30VA so I thought I would go with a single voltage transformer that had only 30VA. I am glad to hear it is working for you though.

Seems like you have a small transformer. It looks like it says 5VA which is small. Get one that is 30VA and outputs 16vac. Like this one NuTone C907 16V, 30VA Transformer https://www.amazon.com/dp/B001POBN92/ref=cm_sw_r_cp_apa_hA1KAb4T9SPQY

That's the first step. Then see if your ring pro can function properly.

https://www.amazon.com/Edwards-Signaling-598-120V-Transformer/dp/B007B79HR2/ref=sr_1_fkmr0_1?ie=UTF8&qid=1519562476&sr=8-1-fkmr0&keywords=doorbell+transformer+16v+30va
I got this one.

Not totally sure if this is what you're looking, but might provide some info.

Power Adapter for RING Doorbell, UL Certificated 24V Transformer Power Supply 1.8+3M Cable for RING Video Doorbell, RING Video Doorbell 2 & RING Video Doorbell Pro Battery Charger https://www.amazon.com/dp/B07HRY66XN/ref=cm_sw_r_cp_apa_i_pF2jDbVQGNSCF


I personally didn't think the battery was utilized when your hardwired AC, but maybe I'm wrong.

1. I incorrectly typed the wrong description for the transformer. It's 16 V 30VAC. But you mean they typically are 24V correct?
   
   
2. Would something that powers the outlet like this work for a Nest thermostat. This would also be completely isolated from the furnace at least for the common wire.
   
   https://www.amazon.com/Transformer-AGPTEK-Compatible-Thermostat-Honeywell/dp/B07HRK7CWX/ref=sr_1_6?keywords=thermostat+ac+transformer&qid=1562961554&s=gateway&sr=8-6

That's what I figured you had, so you'd need to upgrade the transformer for the Pro. The Nutone C907 is 16VAC@30VA and the one I generally use. https://smile.amazon.com/NuTone-C907-16V-30VA-Transformer/dp/B001POBN92/

Just shut off the breaker that powers the transformer and its a like for like swap (though the 30VA transformer is physically larger, the connections are the same). And then just install the Ring Pro in place of the button. And install the Pro Power Kit's black wires with one under the screw for the Trans terminal on the Doorbell chime, and the other under the screw corresponding to the button you're using (front or rear). So usually it would be front+trans, and it doesn't matter which wire goes under which terminal. Just make sure you leave the existing wires in place. It just piggybacks on those two terminals. Then restore power to the transformer and you should be in business. Note that it can take up to 20 minutes before its ready to setup, since it will charge up the little battery that is inside that it uses to bridge the power when it has to ring the mechanical chime, which causes it to lose access to AC power for a few seconds. That's also why it needs the bigger transformer, so it doesn't use that battery for other purposes, like supplementing an undersized transfomer, which would kill that battery in a year, vs 5-10 years with normal use. So to use the Pro, you definitely want to upgrade the transformer.

I'd recommend swapping the transfomer and keeping the Pro, rather than downgrading the Ring. The Pro is a much better device with the pixel-based detection and you'll get ~1 min videos plus the event that triggered the alert, vs the battery models (Doorbell 1&2) which only record 30 seconds, and only after they're woken up by motion, which means the event that triggered them is not recorded on battery devices. Plus the motion zones are so much better than relying on PIR detection that is imprecise.

I use this transformer for my Nest Hello. Haven’t had any issues with it.


24V 40VA Thermostat and Doorbell Transformer, Power Supply Compatible with Nest, Ecobee, Sensi and Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell (Style 1) https://www.amazon.com/dp/B07L9X9V57/ref=cm_sw_r_cp_api_i_.EDxDb34YH2VQ

I don't believe it's 30VA, it's 16 however

Would this be fine to buy?

I can’t be certain but I don’t think that’s the doorbell transformer. Again, I could be wrong.

The wires you saw going through the hole in the wall are most likely attached to the doorbell transformer that’s located somewhere.

https://www.amazon.com/NuTone-C907-16V-30VA-Transformer/dp/B001POBN92/ref=mp_s_a_1_1?keywords=nutone+c907&qid=1567203545&s=gateway&sr=8-1

This is what the transformer should look like.

That’s the one that is recommended by folks.

Also looking closer at the pic, I can see some writing on the red part that says front rear etc. that is just part of the chime.

If it’s not your house, I wouldn’t be messing with the thermostat. In any case, if there is only red/white and you won’t be accessing the controls side, you can purchase a plug in Transformer that is connected to Rc and C, the red / white pair to Rh and W1. 24 https://www.amazon.com/dp/B07DJ7RHS5/ref=cm_sw_r_cp_tai_to6hDb7VX2465

I want to tear one up and re- mount it into a metal enclosure (might mess with wifi) similar to Ring. Adding the power using https://www.ebay.com/itm/AC-12V-24V-to-DC-5V-Buck-Converter-AC-DC-Step-Down-Power-Supply-Module-Hot/273867248051?

to power from the doorbell transformer (might need to upgrade to https://www.amazon.com/Doorbell-Transformer-Comptible-hello-Certified/dp/B07H334M46? )

I am tempted to try this https://www.ebay.com/itm/PAM8403-3W-Stereo-Audio-Power-Amplifier-Board-Module-with-Volume-Control-Pot-US/191879583686?

Using the speaker from the raspberry pi AIY Voice kit that i got for $3.14, it should produce good volume, the quality will probably be questionable.

My Ring Pro has been excellent with no issues so far. No problems with the video walkups or audio issues that others have experienced. The key is the transformer (getting enough power) and the WiFi signal.

Have you looked at Transformers yet? I would recommend one with 30 vac. I have mine hooked up to 16v 30VAC. Below is what I am using:


Edwards Signaling 598 120V 8/16/24V 30W Transformer

https://www.amazon.com/dp/B007B79HR2

I just bought mine and had a similar issue as yours. I figured out that it wasn't getting enough juice even though it was the minimum required to run the doorbell. It would constantly be good voltage during the day but once it hit night time and night vision kicked in it would freeze up and disconnect. Ring recommend I upgrade my transformer and provided me with the Amazon link since the one they sell was sold out. I bought It and so far the Ring doorbell been has running flawless with no issues such as freezes or disconnects.

Link in case you wanted to try.

https://www.amazon.com/NuTone-C907-16V-30VA-Transformer/dp/B001POBN92/ref=sr_1_2?ie=UTF8&qid=1522996843&sr=8-2&keywords=16v+20va

Added note for the issue if having to go and buy a new transformer. Ring issued me a free chime which was cool of them.

You need a transformer like this: https://www.amazon.com/dp/B07GND8RMQ/ref=cm_sw_r_cp_api_i_OHYvCb5X5BV7X

EDIT: Fixed link.

Nutone101T seriously people it's 2017 learn to google FFS.

I’m using one of these, works great!

https://www.amazon.com/Transformer-Thermostat-Competible-Versions-Honeywell/dp/B07DJ7RHS5/ref=sr_1_2_sspa?ie=UTF8&qid=1542899554&sr=8-2-spons&keywords=viivria+24+volt+transformer&psc=1

Sunjoyco Power Supply Adapter for Ring Video Doorbell, Ring Doorbell 2, Ring Doorbell Pro, Nest Hello Doorbell Charging Adapter Transformer with 20FT Long Cable US Plug -[UL Certification] https://www.amazon.com/dp/B07HMML1RC/ref=cm_sw_r_cp_apa_i_yj25CbT84D46C

Thanks for the info! The transformer I am using is this: https://www.amazon.com/Thermostat-Doorbell-Transformer-Compatible-Honeywell/dp/B07L9X9V57/ref=sr_1_4?keywords=Thermostat+transformer&qid=1559249379&s=hi&sr=1-4


if I bypass (power only the ecobee I am fine, boot up no problem. I am certain the connections to the LG panel are not loose. I assume 40 VA should be sufficient?

I would return the doorbell transformer and buy a plug-in AC transformer designed for a security panel, like this: https://www.amazon.com/Adapter-Doorbell-Supply-Battery-Charger/dp/B077XTJBXV?ref_=Oct_CABSellerC_6291372011_1&pf_rd_r=YEVEKQSAG642WEWCS5CA&pf_rd_p=52d2698a-aac9-5fff-be49-ac42f531f549&pf_rd_s=mobile-hybrid-5&pf_rd_t=30901&pf_rd_i=6291372011&pf_rd_m=ATVPDKIKX0DER

Yeah this is what I did, I have a two wire boiler system and it works great. I bought this power supply and wired it into my existing system. It took a little work but in the end it powers the best just fine. If your board doesn’t have a 24v transformer the best will occasionally cycle the power on the board so it stays charged which can apparently fry the board.

I had issues with my gen2 not having a common wire.
My dad has two Gen 3 in his house and my mom has one Gen 3 in her house. Neither of them have had any issues and they have had them over a year.
That being said you can buy something like this if you have an outlet within 26ft of your thermostat.


24 Volt Transformer, C Wire Adapter Thermostat, Competible with All Versions of Ring Doorbell and Thermostat for Nest Ecobee, Sensi and Honeywell, 315" Long Cable 24V Transformer https://www.amazon.com/dp/B07DJ7RHS5/ref=cm_sw_r_cp_apa_i_8FbKDbPP6035S

If all you need is a transformer with the specs from OP, take a look at this transformer, it looks like the specs you are asking for. I searched for “120vac to 24vac 30W transformer” if you want to look for something else.

As long as you connect to the right terminal you should get 24V 30W output.

You can just get an 18V transformer to plug into the wall and snake the wires through.

Power Adapter for Nest Hello Video Doorbell 18v Output Power Supply Cable Charger Kit w/ 2 Cord | AC Adopter Plug for Outdoor Wall Outlet Plug-in by Sully https://www.amazon.com/dp/B07NKZ7R4F/ref=cm_sw_r_cp_api_i_xI.MDbZ6HSQB6

Or get these so you can get an indoor chime:

OhmKat Wireless Universal Video Doorbell Chime (Patent Pending) - For Use with Nest, Ring, August, Skybell, Zmodo Compatible OhmKat Video Doorbell Power Supplies https://www.amazon.com/dp/B07L9JHY5H/ref=cm_sw_r_cp_api_i_yJ.MDbY3PCA1P

OhmKat Video Doorbell Power Supply- Compatible with Nest Hello - No Existing Wiring Required - Transformer, Adapter, Power Kit & Supply All In One (White) https://www.amazon.com/dp/B071H7FXQ6/ref=cm_sw_r_cp_api_i_lK.MDbK1X46KY

Thank you for the response. Just trying to figure it out.
I ordered this 24 v transformer

24 Volt Transformer, C Wire Adapter Thermostat, Competible with All Versions of Ring Doorbell and Thermostat for Nest Ecobee, Sensi and Honeywell, 315" Long Cable 24V Transformer https://www.amazon.com/dp/B07DJ7RHS5/ref=cm_sw_r_cp_api_i_c9rMDbBWFKN4G

I already have a Nest E unit. So ordering another from UK wouldn’t work. But if the above transformer wouldn’t work then I would get the 3rd gen and sell the E

You’re most likely right. It looks to be a doorbell transformer like this one:


https://www.amazon.com/Doorbell-Transformer-Comptible-hello-Certified/dp/B07H334M46/ref=asc_df_B07H334M46

NuTone C907 16V, 30VA Transformer https://www.amazon.com/dp/B001POBN92/ref=cm_sw_r_cp_apa_SstRAb67CZY6H

You'll have no problem if you use this with anything you want to power.

It's large though

Here is what I got
Transformer:
https://www.amazon.com/NuTone-C907-16V-30VA-Transformer/dp/B001POBN92/ref=sr_1_5?ie=UTF8&qid=1521326571&sr=8-5&keywords=doorbell+transformer

Chime:
https://www.amazon.com/NuTone-LA11WH-Decorative-Two-Note-Textured/dp/B001EG272I/ref=sr_1_5?ie=UTF8&qid=1521326631&sr=8-5&keywords=nutone+chime

16V is enough, what matters is the power number. Nest require at least 10VA. 30VA is enough for 3 smart doorbell.

I found this one on Amazon probably going to get it. 24V 40VA.

​

https://www.amazon.com/Thermostat-Transformer-Compatible-Honeywell-Doorbells/dp/B07Q4PPKQ8/ref=sr_1_4?keywords=doorbell+transformer+24v+40va&qid=1575041047&refinements=p_85%3A2470955011&rnid=2470954011&rps=1&smid=A13VMRETOD6ATO&sr=8-4

Lowe's model: https://www.lowes.com/pd/Utilitech-Multi-Color-Doorbell-Transformer/3482857

The one many people here prefer:
NuTone C907 16V, 30VA Transformer https://www.amazon.com/dp/B001POBN92/ref=cm_sw_r_cp_apa_i_UAz-AbJNKY54Y

I personally went to Lowe's since I could return it if it didn't work. Mines been great though.

Ended up getting the transformerto fit in the old box. Working fine at 16V 30va setting of the transformer (vs 24V). Used 3 pairs of wire total with this heat shrink tubing and these heat shrink solder wire connectors. Thanks all.

Maybe double check that your mechanical doorbell can handle 24V. Mine said 16V, so I ended up getting this 16V transformer

I moved into a house that didn't have a doorbell. I bought a power supply that plugs directly into wall outlet. Works perfectly.

​

https://www.amazon.com/gp/product/B071H7FXQ6/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

@kulidan were you able to find any more information?

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I bought a PDRYCB300 and an ecobee4. Unfortunately I have not been able to get the thermostat to talk to my slim duct system. (LMDN186HV) I bought a separate transformer which was able to power the ecobee4 but despite what I believe are the right wire mappings it does not send any commands to the unit. Note I attached this transformer directly to the ecobee4 on the RC and C terminals. I may try routing this through the dry contact next, but the exact configuration is not clear to me.

https://smile.amazon.com/gp/product/B07DJ7RHS5

Probably will be fixed with the addition of a C wire.

https://www.amazon.com/gp/product/B07FT2RCG9/ref=od_aui_detailpages00?ie=UTF8&psc=1

I went and took everything apart and found the manuals, it is actually really straight forward. You just need a [transformer] (https://www.amazon.com/gp/product/B001POBN92/ref=ox_sc_act_title_2?smid=ATVPDKIKX0DER&psc=1) which you can pick up for not much to turn the 100~110v to 16v, and you are good to go. Right now the video display unit does that but for a clean install I want that thing gone. And right now Best Buy has a killer deal on the Ring Pro I might have to go all in.

It appears if the voltage on the Ring Pro drops too low when ringing the doorbell, it turns this setting off. I fixed the issue by replacing my 16V 10VA transformer with a 16V 30VA transformer. 16V 30VA Transformer on Amazon

Do you have a basement? My transformer was located on a lightbulb socket like this one. I ended up upgrading from my 16v to a 24v since I have front and back doorbells, and the chime wasn't working properly. I also have a better connection with the 24v.

Installed this transformer and directly ran the wire to the Ring Video Doorbell Pro a few months back (No existing chime, and brand new wiring direct to Ring Doorbell PRO).

I have zero issues with voltage/power until this morning when I noticed the red lighting bolt icon on my camera.

https://www.amazon.com/gp/product/B001POBN92/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

Is this a bug, or am I missing something? Curious if this is a known issue or something else I can solve for with a software update, etc.?

https://imgur.com/A3P3zMh

The other answers here are incomplete. According to the Nest website, you need:

"Nest Hello needs to be powered by wires delivering 16- 24 VAC, and at least 10 VA. There are a few ways to check the voltage:"

You need to check your transformer again and make sure it says it provide at least 10 VA. If it doesn't say, then it may or may not work. I bought one of these: https://www.amazon.com/gp/product/B001PO7MY2/

It has the required voltages (16 and 24) and power output (20 VA). My original transformer was only good for 5 VA.

I have two Ring Pro video doorbells connected to a mechanical chime. I ran brand new doorbell wire to support this installation. I started by using the 16V 10VA transformer that came with the chime.

That worked successfully for a couple of weeks. But then one of the Ring Pro's started going offline due to low voltage.

To solve this problem, I purchased a multiple voltage transformer that could provide either 8V, 16V, or 24V @ 20VA. I started by configuring the transformer to output 16V. The Ring Pros were happy with this setting (that is to say that they didn't go offline anymore due to low voltage). However, in this configuration, my mechanical chime was vibrating constantly (that is, when I removed the chime's cover, I could see that one of the chime "pistons" was continuously moving up and down).

I then changed the transformer to output 24V, and I'm happy to report that everything is now working perfectly. Ring Pros are happy with the voltage, and the chime does not vibrate.

Problem solved!

This is the transformer I'm using:

https://www.amazon.com/gp/product/B001PO7MY2/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

Hope this helps.

I ordered this one Yesterday. https://www.amazon.com/gp/product/B07DJ7RHS5/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Any difference in this and the Venstar?

I'll let the more electrically inclined reply, I just know from an older discussion about this. I think you were able to test somewhere on the chime itself? I would recommend getting a bigger transformer either way. This one works perfectly and provides plenty of power:
https://www.amazon.com/gp/product/B001POBN92/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1