Ring Video Doorbell

I do not know if anybody can help Me?

I have a House that was Built 20 Years Ago and it has a Standard Doorbell.
I know a Standard Doorbell Runs on 8. VAC at 2. Amps.

The new Ring Doorbell Runs on 16 VAC at 20 Amps if you Look them up.
So how is everybody Installing them HardWired in these Old Homes?

The Ring Doorbell was not out 20 Years Ago and you know a House Doorbell Circiut is 120 VAC at 15 Amps.
And the Doorbell Transformer Steps Down the Voltage to 8. Volts for a Standard Doorbell.

Or am I Missing something?

 

replace the 8v transformer with a 16 volt transformer.