24VAC 40VA Plug in Transformer,Doorbell Transformer Compatible with All of Doorbell，Nest, Ecobee, Sensi and Honeywell Thermostat

My ring doorbell went offline. I found out that the transformer was not supplying the correct voltage to it. With this one I got the correct voltage to it and it works great now.

Item as described. Easy to install and works great.

I use it to test 24v AC relays had 5. Hook the relays up and if I heard a click I knew it was a good one.

Supplies 24v to doorbell and blink camera. Does make a buzzing sound

It was what I needed , works fine.

I didn't have a doorbell at the front, but instead had a very old (in my opinion) calling system. So I wanted to put in a camera doorbell. The problem was I only had a cut up ethernet line going to the front door with only 2 pairs usable. I figured I could use this with my newly aquired Reolink doorbell camera. I used a combined pair of the mentioned wires for one side of the power and the other combined pair for the other side. So far so good.PLEASE NOTICE THE product mentions that under NO LOAD the voltage WILL be higher than its intended use case.I've seen others mention that these output too many volts in their reviews. This is totally fine and they need to remember that under no load (no amps being pushed through) the voltage will be higher than normal rating. Mine was 27V as I tested after no load. I didn't test after my camera was installed but it should be around the rated 24 volts!

less than 1 year old and died...

It’s pretty good product.A bit heavy, but looks and works well.