PROTEK Bell Transformer 24V for Live Video Door Bell Enclosure Wall Mounted 2 Module (BT8-24 24V Transformer) Smart Home

I was looking for a Bell Transformer to power the Ring Pro 2, I also wanted the internal mechanical chime to work. I did a bit of research and bought the below:* Ring Pro 2* PROTEK Bell Transformer 16V* Honeywell D117 Chime - supports up to 16VAC* Pro Power Kit v3 (specifically made for Ring Pro 2) - Part of the Spare Parts kitI then wired it all up and tested the AC current draw. It seems like the Ring Pro 2 uses around 3.5VA when operating in day light and around 4VA in the night with IR lights on, and it jumps to around 8VA-10VA when speaking extremely loudly on the 2 way talk and with the IR lights on. I know Ring Pro 2 requirements say 10VA-40VA but i believe that is for the U.S market where the mechanical doorbells require 10VA.Got it all in for a week now and is working perfectly, the power on the doorbell also shows 17V.

Easy to install and worked great as 16v for ring doorbell

The product looked like it might be poor quality in the pic, but it's actually ok and the mounting box is solid.

Easy to install and zero noise.

If you imported a Google Nest Doorbell Gen2 Wired from the US to the UK, this transformer works great.Update : after one month it started to buzz loudly, I am returning it...

Purchased a Eufy wired doorbell for use in the UK October 2020. UK doorbells run at 12 volts , Eufy needs at least 16volts to operate all the functions satisfactorily . 12 volts will run some of the functions but you will get connectivity issues/drop out.Transformer fitted into my fuse board(Hager) I didn't realise that i had a hager doorbell transformer on the fuse board at 12volts! Originally intended to mount the transformer in the plastic surround that it came with, next to my original door chime box and spur off it into the chime box, then realised that all i had to do was swap out the 12 v hager transformer with the protek one(same width) and then bypass the original chime box. All works seamlessly now and the Eufy runs perfectly even just using the 16volts that i set it to rather than 24 volts. Slightly warm to the touch but no more than that. This is to be expected as all transformers produce heat. I am no electrician but can do DIY.

Transformer came with many little cracks in it

Received this today and installed. Works well.Another reviewer said that the output voltage was higher than that stated on the transformer and knocked off a star because of that. The reason why it is higher is 'transformer regulation' which is or should be basic electrical engineering knowledge and a good reason why people without adequate training should not be tinkering with the mains supply.