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Peace of mind, peace of mind, and harmony
Fesasn has a team of professionals who have been focusing on the design and manufacture of transformers for many years, constantly improving the technology to meet the needs of consumers. Our team has developed a new and upgraded design that completely solves the problem of noise and heat generated during use, and the AC24V stable output makes your visual doorbell work perfectly. With this doorbell adapter, you can charge the doorbell continuously without worrying about the doorbell product working interruption, which makes it an excellent special transformer for Ring doorbells. You don't need to remove the battery inside the doorbell, just connect this transformer and charge the doorbell at any time, which is what we want it to do for you
24V power adapter compatible with：24V US power cables for your popular smart thermostats (Nest 1/2nd, Ecobee, Honeywell, Sensi) and doorbells (Ring Video Doorbell, Ring Video Doorbell 2 and Ring Video Doorbell Pro, Nest Skybell, etc.) and other devices that require a constant AC 24 volt power supply, enabling you to safely charge your devices
Long enough cable to facilitate the arrangement and installation of doorbells or thermostats
The shell is made of PC+ABS material, which is fire-resistant and anti drop, ensuring safe and reliable use
Adopting pure copper wire design, sufficient power, low heat generation, and good stability
For doorbells
1.Keep adapter unplugged. 2.Install wires from 24 volt adapter into the terminals for your doorbell unit (Simply attach the two exposed copper wires to the doorbell and tighten the screws, regardless of positive or negative polarity) 3.Plug adapter into outlet. 4.Power up and verify your doorbell is receiving necessary power using the accompanying application.
For thermostats
1.Cut off the power of circuit breaker. 2.Install the wire from your 24 volt adapter to the “C” terminal and the other wire to the “RC” terminal. You need to use included jumper and connect from “RH” to “RC” terminals，if HVAC system has a cooling. 3.Plug the power adapter into the socket and turn on the power of the circuit breaker. Install the panel on the thermostat.
Widely compatible
Compatible with Ring Video Doorbell Compatible with Ring Video Doorbell 2 Compatible with Skybell Doorbell Compatible with Honeywell Smart Wifi Thermostat Compatible with Nest Thermostat Compatible with Ecobee Thermostat Compatible with Sensi Thermostat
Kristine Yulich
2025-07-22 19:34:40
Bought to use for my wired Roku doorbell and it worked great! Made the doorbell able to plug in and it has a very long cord. Easy to install.
Erik Chavez
2025-07-20 16:37:36
It works perfect for my new smart thermostat.
Peter Laxton
2025-01-19 16:06:16
finally and easily able to power my nest thermostat with only 2-wire connection to the heating system
paul a peate
2024-12-29 14:02:19
This item keeps my ring charged
EMS
2024-12-13 18:08:02
Our house is old enough to not have a C wire for the thermostat. So if we use a modern programmable one it has to be replaced every couple of years when the battery can no longer be recharged. There is a plug just below though, so we bought this to try. Took less then 5 minutes to install and has been working great since.
Gus H.
2024-12-11 17:39:32
2 stars because the product arrived on time and it works. However not sure if it was damaged but something rattles inside as if it's loose i was afraid it wasn't going to work but it did!
Honest Reviews
2024-12-09 18:47:07
First I wanna thank the other reviewer who also bought this for the Wyze Doorbell v2 and left a review stating it works. I never would've tried this cuz idk enough about electric stuff to know if my plugs have enough voltage, or if the plug is enough, or good enough for the camera, etc, nor do I have an existing doorbell, so thanks for doing that legwork. I immediately bought this after seeing that review (and the Wyze Doorbell v2 cam as well) and just hooked it up now and it works great! It's literally as easy as slightly unscrewing the two screws on the back of the camera, make the metal part of the wire touch the screw, the tighten the screw until secure. Then plug other end into outlet. The camera has instructions for this as well, but figured I'd save a future person a few minutes and share :)
Hank
2024-12-07 18:56:22
The Fesasn 24VAC transformer seems to be well made and is an encapsulated type of design. It comes with about 16.4 feet of 22 AWG open ended wire.During my testing, open circuit was 24.6VAC , however the performance started to drop off at about 400Ma and at the rated current output (500Ma), the voltage fell to 20.4VAC. Testing environment consisted of various 1% resistive loads and a well calibrated RMS AC voltmeter. Considering the voltage drop in 16.4' of 22gA wire, that would only account for
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