Maxdot1 Pack Doorbell Transformer 16V 30VA Compatible with Ring Wired Video Doorbell, Safe UL Listed Wired Doorbell 30VA Kit, Easy to Install Door Bell Transformer for Home

Update 02/06/25 - I contacted their customer service and they were extremely helpful in solving the issue by issuing a replacement. Replacement is working great.Initial Review - I purchased this transformer to power our Blink doorbell/door cam. It worked fine for the first 2 years, however right after we crossed the two year mark, we received a low battery message from our Blink doorbell. I thought that was strange because it was supposed to keep the doorbell/camera working without using batteries but figured maybe the batteries were low on their own. I swapped batteries but then received another low battery notification a couple weeks later.I went to our crawlspace where I had installed the converter and confirmed that there was still AC power to the unit. I then checked the output terminals and measured that there was no voltage (DC voltage) across the two terminals. Something failed on the internals of the transformer that means it is no longer outputting the required (or any) voltage.The unit is in the crawlspace and hasn't been touched since it was installed and working successfully. Disappointing to see it fail after only 2 years. With no moving parts and no physical impact/use, it feels like it should last much, much longer. Now we're left trying to figure out what to do to replace it after only two years.

Worked perfectly to hook up my riolink doorbell cam. I hate the idea of having to charge it I just want to set it and forget it. My old transformer voltage was too low. This did the trick.

This is a nice unit for the price. I tested the output before installing and was satisfied it would work in the existing system with a Ring doorbell installed. There are many YouTube videos on how to do this, so it's doable with a little know-how.

Nothing fancy going on here. The install was simple, painless and quick as one would expect. The Ring Pro I bought this for fired up without issue and my previously underpowered mechanical doorbell was finally getting enough juice to complete a chime. After I completed the setup in the app everything was good, until it wasn't...maybe a glitch, but five minutes later I got a "poor" for the voltage rating. It was odd since everything was working....and then magically, it resolved itself another 5 minutes later and I haven't had any issues since -- everything is in the green. So maybe I can chalk that up to a Ring-related setup miscue where it was cycling through something as part of the install/setup?Regardless, everything appears to be working perfectly now. I get video almost instantly when I click on the live view (as opposed to having to wait awhile on the Arlo camera we used to use), and everything rings as it should (both the device and our mechanical doorbell). On a side note, as someone else mentioned, there is about a 3 second delay between pressing the Ring button and the mechanical chime actually ringing inside, but I don't believe that is a failure, I just think it has something to do with how the power is relayed.One final note...I had an electrician out for some other work and asked, out of curiosity, what he would charge for the Ring install (since he was already there). He told me that people always have power issues and there's a ton of troubleshooting involved and then quoted me $245. It's really not complicated at all and the instructions were pretty straightforward. He essentially wanted to charge the same amount it would cost to purchase the doorbell -- so there's that, trust in your own abilities for simple tasks like this -- it'll save you money.So overall this is a good purchase, I'm just worried slightly about the reliability given that initial glitch, but since there haven't been any further issues, I guess it's just a waiting game to see if this will hold up for years or crap out in a month.

Works great just as described.

When I installed the RIng DoorBell Pro at my daughter's house I also replaced the house door mechanical chime with one (another mechanical one) on the Ring Compatibility list (many of which have different brand names but are made by Heath-Zenith and are low cost). The chime only cost me like $20 at Lowes. The old chime, even before the Ring Doorbell Pro barely rang. The old transformer was 16v 15 amp. The new chime rang fine and the Health of the Doorbell was fine. However I wanted a better transformer to avoid issues. This new one is 16V 30 amp. I bought another one for my house to replace a little 10 A one. The old one used the metal box as the ground, this new one has a plastic nut to attach it and a separate ground wire. So I used a short green grounding wire from Home Depot (Lowes sells ones that have a poorly designed screw that does not cut into box hole) to screw it into a hole in the box, cut off the other end and stripped it and connected it to the green ground wire on the transformer. The new House Door bell chime much louder with this transformer and seemed to happen faster. The chime itself requires a 10 amp transformer, so I have plenty for the RIng Doorbell Pro and the Chime. The transformer was super well packed and looks like a quality product. I also like the way the transformer has a cover over the transformer plates shielding it. The price was great too! It is UL approved and well documented. It has a internal thermal fuse (115 degrees)on the low voltage end. At night and when someone rings the bell more power is needed and this transformer is just the thing you want to avoid issues. Be aware, the electrical box where you old transformer is could have more than one live circuit running in it, so shutting off the power to the doorbell may leave a hot line inside yet. So know what you are doing. One tip is that you should cut the insulation to about 3/4-1" on the three transformer wires BEFORE you install it to provide enough room to wrap it around the wires and not totally depend on the plastic wire nuts to hold it. And remember you are talking about 120 V circuit here, so know what you are doing and shut off all breakers for all lines in the box and test there is no power inside before starting. FYI I have a circuit breaker box tracer and wireless power tester to aid me. If you don't know what you are doing get someone who does.