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Hotop

Hotop 24 Volt C Wire Adapter for Smart Thermostat, UL Listed 16.5ft Long Power Connector C Wire for All Versions of Smart Thermostat Compatible with Nest, Honeywell, Ecobee, Wyze, Sensi

    • Based on 2,925 reviews
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Nov 20
Order within 13 hours and 26 minutes
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Features

  • Widely Use: Hotop C wire adapter compatible with smart thermostats, Nest, Ecobee, Honeywell, Sensi, wyze, Hive, smart thermostat, etc., and other devices that require constant 24 volt power for operation, enables you to charge your devices safety
  • Certificated Safety Nest Thermostat Power Supply: Hotop C wire adapter for smart thermostat is UL listed and has built in 2A thermal fuse short circuit protection, prevent short circuit, overvoltage, overcurrent, overheat, ensure charging safety
  • Safe and Convenient: a quick fix to the problem of "Low battery" you can charge it directly (plug adapter into outlet and power up); That means you don't need to remove your thermostat in order to charge up the battery; With an output of 24V/300mA, a nice tool to meet your needs
  • Easy To Install: 2 pin non polarity wires support easy and quick install, assemble along the wall from your outlet to the thermostat without the wiring; Our cable is 5 m (16.5ft) long and you do not worry about the distance between the socket and the smart thermostat; This allows you to easily plug it into an electrical outlet inside or outside your house
  • What You Will Get: 1 pcs 24 Volt C wire adapter for smart thermostats, 1 bag (50 pieces) of cable clips, enough to meet your daily use

Brand: Hotop


Power Source: Battery Powered


Current Rating: 0.3 Amps


Maximum Frequency: 60 Hz


Minimum Frequency: 60 Hz


Specification Met: ‎UL


Item Weight: ‎0.03 Pounds


UPC: ‎615068644914


Manufacturer: ‎Hotop


Item Weight: ‎0.48 ounces


Package Dimensions: ‎3.74 x 3.58 x 2.83 inches


Is Discontinued By Manufacturer: ‎No


Color: ‎White


Voltage: ‎120 Volts, 110 Volts, 24 Volts


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: January 14, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Worked well
This fixed the issue I was having with the Thermostat loosing power and connection. Worked very well
Reviewed in the United States on May 7, 2024 by Mr/Mrs Davis
    • Purchased for my Nest thermostat.
So, my nest thermostat did well for about a year and ended up not holding a charge, in the winter time of all months. Also, wasn’t letting me adjust the temperature whenever I was away because the battery was too low. I did some research online and found out that this is something that happens to a lot of users if they don’t have a common wire. Since the common wire is what charges the Nest. (I literally have no idea about HVAC systems) I purchased this, and took some trial and error in getting it to work. But I have to say, since I got it finally wired up properly I’ve had no issues with my thermostat. ... show more
Reviewed in the United States on March 6, 2023 by Kaitlin94
    • Here's what you need to know about using this with Google Nest
This product is great, super helpful and easy to install. So why do half the reviews say it works with Nest, and half say it DOESN'T work with Nest? After many days of trial and error and enough research to make me a subject matter expert on 2 wire systems, I've found that it all boils down to this: Nest has a finnicky base. I installed this 6 or 7 different times before my Nest was happy. I checked polarity, I checked voltage, I tried wrapping the smaller wire around the larger wire where they both connect to the same port.... ultimately it just took a lot of careful placement and then it worked. My Nest has been happily powered and error free since then. Of course now I'm afraid to remove it to touch up the paint where my former larger thermostat sat but that's a different matter altogether....Still worth it to go to a programmable thermostat. ... show more
Reviewed in the United States on March 4, 2022 by Amazon Customer
    • Easy to install, but cord length is a bit ridiculous
I have a Nest in a system with a common wire. It works 90% of the time, but when it gets too cold I need to pull the Y (cooling wire) because without the power from that line, the furnace will short cycle. I didn't want to run a new thermostat wire and the add-a-wire kits haven't worked in my setup. This kit does work. It installs easy- for me, all I really needed was to run the wire and plug in it to the C terminal. Fishing it through the wall wasn't an option, so I just ran it behind the base plate. If you try to do it right under the Nest itself, the Nest won't seat properly. I hooked up one wire to the C terminal and the other to Rc and that was that. I'm not sure hooking up Rc is strictly necessary in my setup, but it saves having to trim and cap the wire (which you would have to do since it is hot). One other huge plus is the UL certification. Looking for this kind of thing, you'll find a bunch of other products that are available that are not UL or ETL certified. These certifications are a hugely important thing to look for. These certifications ensure that the product was safety tested and for anything drawing power, you really want to have those certifications. You can also look for CSA (Canada) and CE (EU) certifications, but those are obviously tested to Canadian and EU standards. Still, any kind of certification is better than nothing. Only real negative for me are the cord length. 23' long cord is overkill, but since you can trim it, it's largely just a nuisance. I guess it could be good if you wanted to fish it through the wall, but if you're doing that, you might as well just run a new thermostat wire. ... show more
Reviewed in the United States on January 21, 2024 by Tony
    • Works with Amazon smart thermostat!
I used this power adapter to power a simple propane “hot dawg” garage heater. Red and white heater wire were connected to the W and Rh of the thermostat. And the power adapter was connected to 120 power and the 24 AC wire non polar were attached to the Rc and cC of the thermostat. Power up “Set” is displayed and follow the Alexa app to finish setup of the thermostat. So far so good. ... show more
Reviewed in the United States on March 4, 2024 by Duain E Abbott
    • Dead transformer probably returned before by another purchaser
I bought this along with a Sensi smart thermostat. I knew the existing thermostat had no "C wire", and that my simple heat-only system would require such a supplemental transformer. The thermostat worked on the wall but the remote function kept failing within minutes of set-up, with a message indicating it was not connected to power. I spent hours trying to figure out what I did wrong in connecting the wires but kept getting the same result. it finally occurred to me to check the transformer. I had an old multi-meter, and the voltage meter never moved when I checked the transformer. This seemed so unlikely I even bought a new meter thinking my old one must be no good. But--same result. So I ordered a second transformer, a different brand at about the same price. (who knows really what the brand is; there are all pretty generic and probably come from the same Chinese factory). Voila! it did register on my meter and the thermostat also worked fine when I connected the second transformer. Obviously poor quality control, but what irked me most was that I was suspicious anyway when I got this that the termostat had previously been returned: the plain white box it came in, no markings of any kind, was coming apart. I imagine the earlier customer also said it did not work. I am returning this one and hope it's not palmed off on another unsuspecting customer. ... show more
Reviewed in the United States on November 12, 2021 by Ira
    • Works great as described, so happy I found this!
Review Image by techysandy techysandy
Our Google Nest thermostat kept losing power and after purchasing this power adapter I successfully installed it and now my thermostat has consistent power at a great value. Thank you
Reviewed in the United States on February 10, 2024 by techysandy techysandy
    • Works great for a Honeywell thermostat
Only had a 2 wire for my thermostat. Added the Hottop 24v for my new Honeywell, It's been over a month with no problems. Eazy connection. Wire Attachment line nails should be a little longer.
Reviewed in the United States on February 15, 2024 by AC

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