If you don't have an existing doorbell, it's possible to connect a Ring Doorbell 3 Plus directly to a low voltage 8-24V AC transformer designed for doorbell circuits.
Note: Some important facts for people planning on using this optional alternate configuration for their Ring Video Doorbell 3 Plus.
- The Ring Video Doorbell 3 Plus may be connected to an AC transformer. DC is not supported, except when connecting to Ring Plug-In Adapter (2nd Gen). The voltage rating must be in the range of 8 to 24VAC, with a maximum VA rating of 40VA.
- Connecting the Ring Video Doorbell 3 Plus to an AC transformer requires some knowledge of wiring. If you are uncomfortable reading wiring diagrams and hooking up wires, consult a licensed electrician for assistance.
- Do not use halogen or garden-lighting transformers.
- Do NOT install a diode.