Power Suuply Question

[Doofus]

As per this thread: https://www.pistonheads.com/gassing/topic.asp?h=0&... I've just bought a new Reolink doorbell to replace my Ring.

The Ring's PSU outputs 24V 20VA (which I understand is 20W). The Reolink's PSU outputs 24V 12W.

Can I continue to use the Ring's 20W PSU with the new doorbell, which apparently only draws 12W?

I believe that the voltage has to be the same, and the wattage must be the same or greater than the device requires.

Edited by Doofus on Tuesday 23 July 11:26

[Mr Pointy]

You are correct. The voltage is the same & the old PSU has plenty of capacity to drive the new doorbell.

Just make sure of the AC/DC question though - check that the PSU is the same as the new doorbell (AC or DC).

Edited by Mr Pointy on Tuesday 23 July 11:31

[Doofus]

Mr Pointy said:

You are correct. The voltage is the same & the old PSU has plenty of capacity to drive the new doorbell.

Just make sure of the AC/DC question though - check that the PSU is the same as the new doorbell (AC or DC).

Edited by Mr Pointy on Tuesday 23 July 11:31

Thank you.

AC/DC was my next question. The Ring says "Output 23VAC 20VA" and the Reolink's PSU (which has "AC/DC adapter" on it) says "Output 24V 0.5A 12W", but it was has the DC current symbol of a dasjed line beneath a solid one.

They're both 3-pin adapters, but the Ring's wiring is buried in the wall/door frame. So it looks like I'm going to have to cut the plug off and join the new one into the existing wiring...

[Mr Pointy]

Yep, it's a good job you checked. Wagos are good for quick cable joins.

If you can't solder then these would also allow you to join the cables but they aren't very neat (but better than a Wago):

https://www.amazon.co.uk/s?k=rewireable+dc+connect...

Edited by Mr Pointy on Tuesday 23 July 11:50

[Doofus]

I'll use Wagos, and go and find a terminal box to hide it all in.

Thanks again for your help.

[Doofus]

All done, seems to be workong fine.