What power supply does a ring doorbell need?
Samuel Coleman
Updated on May 21, 2026
Power & Voltage Requirements
This doorbell is also hardwired and cannot run wirelessly. It requires a compatible doorbell, a Ring plug-in adapter, or a transformer rated for 16-24V AC at 50 or 60 Hz, with a maximum power of 40VA. You can also use a Ring DC transformer or a power supply.What kind of power does a Ring doorbell need?
The Ring video doorbell pro requires a transformer with between 16-24 volts and 20-30 amp output. You should check to see if your existing transformer meets these specs before installing. If you have a doorbell with a hard wired external chime, there is undoubtedly a transformer somewhere in your house.Does Ring doorbell need mains power?
A hardwired Ring Video Doorbell does not actually use the wired power to run its operations. It relies on the battery for that. The trickle charge the RVD gets from being hardwired is solely used to charge the battery.Does Ring doorbell need AC or DC?
The Ring Video Doorbell can only be connected to an AC transformer. DC is not supported.What voltage transformer is needed for Ring doorbell?
The Ring Video Doorbell Pro requires a doorbell transformer rated at 16-24 VAC 50/60HZ, 10-40VA max.What power supply do I need for Ring Doorbell?
Will a 16V 10VA transformer work with Ring doorbell?
Our Ring Pro requires a power supply between 16VAC and 24VAC to operate as intended. A 16V 10VA rated transformer is fine to use, however, it's important to consider the age/ length of wiring, number of chime kits, and other factors such as resistance.Does Ring doorbell work with 12V DC?
Ring Video Doorbell Elite*Your chime must support 24VAC. Do not connect an 8-12V chime directly to 24V transformers. With Ring Video Doorbell Pro and Ring Video Doorbell Pro 2, retaining your existing chime requires a more advanced installation process than with our other Video Doorbells.
Are Ring doorbells 12V or 24V?
What voltage does the Ring Pro Doorbell require? The Ring Doorbell Pro requires a constant power supply with a voltage between 16V-24V and at least 30VA of amperage. Our smart home pros have found that in the midwest only about 20% of homes built before 1995 have enough voltage to supply a Ring Doorbell Pro.How do I know if my doorbell transformer is AC or DC?
How can I identify if a transformer is AC or DC? A transformer type of current, AC or DC, is given by the symbol located between the voltage and the amperage of the transformer. The bellow image is from an 8V ~ 1A AC ( alternative ) transformer, where the " ~ " symbol is between 8V and 1A.Can you wire a Ring doorbell to a plug?
Yes, you can use a plug in transformer to power the Ring Pro video doorbell but there are a couple of things that you should know before you you install the transformer so that your installation will stand the test of time and work like you want it to.Can you wire a Ring doorbell to a light switch?
Yes. You're going to need to wire it in parallel above the drop to the light switch unless you only want it to work when the light's on*.Do I need a transformer for ring doorbell 3?
Ring Video Doorbell 3 can only be connected to an AC transformer or a Ring Plug-In Adapter (2nd Generation).What voltage does Ring run on?
A Ring doorbell typically requires a voltage of 10-24AC and 40VA of power, depending on the model that you are looking at.How do I choose a doorbell transformer?
Virtually all wired doorbells will use 16-volts, and most transformers are 16V. The wattage or VoltAmps is the difference between most wired doorbell transformers and you want to make sure your wired chime has enough wattage to serve the system. Having an undersized transformer will cause it to burn out.What does 16 volt 10va mean?
So 10va means the tranformer will output 10 watts at most at 16 volts. Transformers only work on alternating current. The ratio of the number of turns around the core on the primary coil to number of turns on the secondary coil determines the voltage decrease or increase.How do I know if my doorbell is 16V?
To use a multimeter to check the voltage of your doorbell transformer:
- Disconnect your existing doorbell. ...
- Set the knob on your multimeter to AC (the V with a wavy line on top or next to it).
- Connect the two probes from the multimeter to the wires from your doorbell.
- Read the voltage level on your multimeter's display.