20VA Ring Doorbell Transformer, 24V 800MA Video Doorbell Power Supply for The Ring Video Doorbell, Ring Video Doorbell 2 & Ring Video Doorbell Pro, Power Supply for Nest Hello Doorbell

Much cheaper than the branded item and works just the same! No issues with the humming at all as mentioned in some reviews! Plenty of length on the cable

Works wellDoes run warmNot had any problems,still going strong.Ok for money

all good

So happy with this gadget. We bought a Ring doorbell in our old house that wired up to the main doorbell, which was grand and perfect. Then when we moved there was no in built doorbell so we was really disappointed with not being able to fit our doorbell here.A few months later we found this option, so we purchased it, not expecting any result, but was so, so happy to find that it works perfectly, it was a fantastic price and as yet we have none of the issues of buzzing that have been mentioned in other reviews.

Stopped working after a week

Bought for an Eufy battery doorbell.Easy to install, quiet and remains cool.I actually like the way it seems to be "upside down" as the outlet is next to the ceiling (see photo) which suits my installation.With the Eufy doorbell (at least) it dosen't seem to actually charge the batteries, but maintains the charge they had when swapped to mains powered (80% in my case)....which I'm happy with.If it dosen't fail anytime soon I'll be a very happy bunny.It's now March 20th, it's still working, but, you can hear it humming, it's not an issue for me as it's on the porch.

So this is very easy to install and absolutely does the job. My only comment on this is that the transformer is quite bulky.

Save a lot of trouble with batteries for my ring doorbell