Arlo Essential Wired Video Doorbell

[Avi8tor68]

Good morning,

I have ordered 2 Arlo Essential Wired Video Doorbells to replace my existing front and back door push button type doorbells which ring a single chime box.  Currently, the doorbell transformer is underpowered (10 Vac - 5va) so is going to require replacement...along with the chime box to match the new transformer rating.

My question is: What is the proper size doorbell transformer to install to accommodate the power requirements for TWO of these doorbells?  (I do understand the range is stated as 16 - 24Vac & 10va but I am not sure if that is sufficient for 2 installs and assume I will want something more than the minimum 16 Vac - 10va to support both doorbells.)  I have seen 16 Vac - 30va transformers as well as 24 Vac - 40va transformers.

My goal is to ensure that the updated transformer installed will provide ample power with some to spare versus being just barely powerful enough.

I thank you all in advance for any replies posted.

Cheers!

[StephenB · Accepted solution]

My own transformer is 24v 40 VA, and powers two doorbells and two chimes.

Not much difference in price over 16v 10 VA.

[Avi8tor68]

Thank you for the reply Stephen B.

It does seem that's the size to go with...more than enough power to carry both doorbells and the chime box.  I also agree that the price difference is negligible between the two different transformer power ratings.   I just wish my transformer was wired into a junction box versus directly into my 200amp service panel.  I'll go into a box after killing the circuit to wire things up but I won't go into the panel.  I've got to find an electrician for that. 

Thanks again for the info!