Style:18V AC/ 500 mA
Compatible model:
Nest, Eufy, Wyze, Arlo Wireless Video doorbell,
Video Doorbell , Video Doorbell Pro,
Nest Hello Video Doorbell,
Greet Pro Smart Doorbell, Greet HD Smart Doorbell, Greet Select Smart Doorbell

Note:Compatible with Ring Video Doorbell
Compatible with Ring Video Doorbell 2 needs to be paired with an external resistor, Because Ring Video Doorbell 2 requires a resistor instead of a mechanical or electronic doorbell kit, this alternate configuration can run successfully.

The picture description includes the installation method and schematic diagram of the compatible with Ring Video Doorbell 2. If you are not comfortable reading the wiring diagram, connect the wires or solder them in place, please consult a licensed electrician for help.

External resistor specifications are: 25 Ohms ± 5% 50W Wirewound Chassis Mount Resistor

Do NOT install a diode.
How to assemble the power adapter:
1. Loose the screws on the back of the Ring doorbell
2. Link the 2 wire tips of the adapter to the two terminals on the back of the doorbell (No need to identify the positive and negative poles, no need the resistor.)
3. Connect the adapter to the 120 V AC power, the rim of the button will flash white light.
4. Open the APP, and then go into the Device Health, if the Power voltage shows very good, it means that it starts to work.

Specification:
Input voltage: 120V, 60 Hz
Output voltage: AC 18 V, 500 mA
Cable length: 3 m/9.85 ft

Package includes:
1 x Power adapter
1 Bag of cable clips (20 pieces)
1*User Manual

Note:Please install the power adapter after the battery is fully charged.
Suit For Video Doorbell 2,Pro- Compatible with Video Doorbell 2 Pro needs to be paired with an external resistor, Because Video Doorbell 2 requires a resistor instead of a mechanical or electronic doorbell kit, this alternate configuration can run successfully. The picture description includes the installation method and schematic diagram of the compatible with Video Doorbell 2. External resistor specifications are: 25 Ohms ± 5% 50W Wirewound Chassis Mount Resistor
Suit For All Doorbells: The power supply adapter suit for all versions of doorbell.It is compatible with the Video Doorbell, Video Doorbell 2 and Video Doorbell Pro.Please notice that this power adapter can not use on doorbell system that requires 30VA
Easy Installation:Please install the power adapter after the battery is fully charged，Assemble along the wall from your outlet to the doorbell without the existing doorbell or new wiring,it just take you several minutes.
Installation Precautions：To prevent no power output，You have to make sure that the terminals are stripped and securely wrapped around the screws making good contact.Note: The brand above is only for demonstrating compatibilityyy
Safe And Relieved:The power adapter have overcurrent protection, overvoltage protection, overload protection, overheat protection,and surge protector,passed FCC, CE,Certified, it is safe for you and your proprietes.With an AC output of 18V/500mA and super long 9.85ft/3M cable