24V AC Power Supply, C Wire Adapter for Smart Thermostat, Fits for Nest Hello August Ring Door Bell and Ecobee Nest Honeywell Smart WiFi Thermostat (with 26.2 Foot Black Door Bell Wire)
Price: $13.39
(as of Feb 16, 2026 21:46:32 UTC – Details)
Product description
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
Connection doorbell installation：
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.
Installation of connecting thermostat：
1. Remove the adapter plug. 2. Install the wires of the 24V adapter into the terminals of the thermostat unit (simply connect two exposed copper wires to the RC and C positions on the thermostat, and then tighten the screws, regardless of positive or negative polarity). 3. Insert the adapter into the socket. 4. Turn on the power and use the included application to verify if it works properly.
Doorbell wire compatible with: Door bell transformers 16-24 vac, 24 Volt 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) and other devices that require a constant AC 24 volt power supply, enabling you to safely charge your devices
For Ring doorbell plug practicality：Easy and quick solution to the “low battery” problem, which means your video doorbell or thermostat can work for you at any time, without having to remove the battery to recharge, which is what we want it to do for you
For doorbell charging cable product parameters: Doorbell power supply -24 Volt doorbell power adapter, plugs into standard 110 Volt / 120 Volt socket, converts to 24 Volt 500 MA AC cable length 26.2 ft (black)
Doorbell power supply Installation method：Installation is very simple and convenient, just use the adapter to connect the smart doorbell or thermostat to the power outlet can be used (note: first disconnect the power cable and then connect the doorbell or thermostat, and finally plug in the adapter to power, do not let the two cables connected together to cause short circuit)
Doorbell hardwired kit quality and durability:High quality construction provides you with safe product protection. This type of transformer passes rigorous testing to ensure the best and long-term performance for its application
Service: We always offer you a two year warranty. If you have any questions about this product, please feel free to contact us via Amazon email or questions and answers, we will solve your problem within 24 hours, your satisfaction is our company’s purpose
