【More Power】Transformer Input: 120V AC 60Hz 0.2A, Output: 24V AC 500mA. No more interrupted operation when you’re away. The power adapter can keep your doorbell / thermostat constantly powered; 【Widely Applicable】Compatible with most doorbells (Nest, Arlo, Ring, Amcrest, Logitech, Eufy, Remo, SkyBell, Simplysafe), thermostats (Honeywell, Nest, Ecobee, Wyze, Emerson, Sensi) and other devices that require 24 volt power for operation; 【Easy to Install】Just run the wire from the socket to the doorbell or thermostat, and the installation can be completed in a few minutes. There is not need to distinguish between positive and negative of the wires; 【Long Cable】The length of cable is 26ft (8m). You can plug the adapter into a socket far away from the thermostat or doorbell. If you don't like the extra wire, you can cut it to a suitable length; 【Service】We provide 24 hours support online. If you have any questions about this charger, please feel free to contact us whenever.

● Input: 120V AC 60Hz 0.2A, Output: 24V 500mA, Length: 26ft (8m).

●UL Approved and Safe to Use:

The 18 volt doorbell power adapter has been certified by UL to meet safety standards, safety and stability, you can use our products with confidence.

● Compatible with: 

Nest Hello Smart Wi-Fi Video Doorbell Wired

Google Nest Video Doorbell Battery

Ring Video Doorbell (3, 3 Plus, 4, Pro, Pro 2, 2020 release)

Arlo Essential Video Doorbell (Wired, Wireless)

Amcrest Video Doorbell Pro (AD110, AD410)

Eufy Video Doorbell Battery (not include other models)

Remo+ RemoBell (S,W)

Logitech circle view doorbell 

Wyze Video Doorbell

● This Adapter also compatible with Zmodo Doorbell, SkyBell (HD,Trim Plus), Ring Doorbell gen1 and gen2. However, you must add a chime or a 10-20 ohm resistor between the doorbell and the transformer. Otherwise, the battery will not be charged normally and the transformer will be damaged.

● If you want to know whether the devices outside the list are compatible, please contact us first.