Maxdot 1 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.

Works good, installed yesterday to power a G4 Doorbell Pro. Easy install and good instructions. You can also go on YT and watch installs/setup videos.Time will tell how long this will last, but I'll update if needed.

Perfect

Great product

This transformer worked just as advertised. I used it to provide power to a ring doorbell 3 where the battery needed to be recharged almost every 2-3 days. Since putting this transformer in line and powering the ring doorbell 3 via AC, I've not had to recharge the battery since. I'm very satisfied with this particular unit... just note that it does require competent electrical and/or carpentry skills to install this within an existing wall if you want it to be "hidden".

It works great. I started off with my original 16V 10VA transformer and there were no problems until winter rolled around. I guess the cold weather made it harder for the doorbell to function because I got an alert that my transformer power was low. The app now reports that the transformer power rating is "Good". It was heavier than expected and I equate this with better quality.

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.

I wish upgrading my transformer as described in various YouTube videos had worked in my situation. Unfortunately, my doorbell chimes still suffered from phantom rings when connected to my Blink Doorbell Camera and the upgraded transformer...