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⚡ Power up your smart home with safety and ease!
The Maxdot Doorbell Transformer provides a reliable 24V/40VA power supply compatible with major smart doorbells like Ring and Nest. UL-listed for enhanced safety, it features easy installation with clear wiring instructions and supports a quiet, stable operation to ensure your smart doorbell performs optimally without interruption.





| ASIN | B07L9X9V57 |
| Best Sellers Rank | #74,964 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #45 in Door Bell Transformers |
| Brand Name | Maxdot |
| Customer Reviews | 4.3 4.3 out of 5 stars (4,660) |
| Included Components | Doorbell Transformer |
| Item Dimensions D x W x H | 2.95"D x 3.35"W x 4.13"H |
| Item Weight | 1.64 Pounds |
| Manufacturer | Maxdot |
| Maximum Frequency | 60 Hz |
| Minimum Frequency | 60 Hz |
| Model | Maxdot-Transformator-0491 |
| Mounting Type | Surface Mount |
| Part Number | Maxdot-Termostato-0491 |
| Power Source | Corded Electric |
| Specification Met | UL |
| UPC | 797153595773 |
N**Y
This is the one you need for your Ring.
I recently installed the Maxdot Doorbell Transformer 24V 40VA to power my Ring Wired Video Doorbell, and I couldn’t be more satisfied with my choice. This transformer is not only compatible but also provides a stable 24V output, ensuring that my doorbell functions flawlessly. The installation process was straightforward, thanks to the clear instructions included in the package. I appreciated that all the necessary components were provided, which made setup a breeze even for someone who isn’t particularly handy. Within minutes, I had it connected and ready to go. One of the standout features of this transformer is its UL certification, which gives me peace of mind knowing that it meets safety standards. It operates quietly and efficiently, with no overheating issues so far, which is a huge plus for a device like this. Additionally, the build quality feels robust, and the sleek design allows it to blend in seamlessly with my home’s electrical setup. It’s been working perfectly, providing a reliable power source for my doorbell without any interruptions. Overall, I highly recommend the Maxdot Doorbell Transformer for anyone looking for a dependable and easy-to-install solution for their wired doorbell. It’s an excellent investment that delivers on performance and safety!
J**D
Powerful.
Works great. If you have anything working as a doorbell that has a camera or other modern power hungry features,, you'll want to upgrade to this in your house. The vast majority of homes have a far less powerful one that will not supply enough voltage for modern doorbell cameras, etc to work optimally. Standard transformers are around 10-14 volts or less for a basic old school doorbell. Modern camera doorbells need a minimum of 16V, and most manufacturers recommend 24V.
M**M
Much Needed Smart Device Upgrade
Previous transformer was a 16v 10 VAC unit that came with my new home build. I had a Google Nest doorbell cam installed from day one and from the onset, it never quite worked 100% (i.e. - doorbell button had to be pushed and held for a good second or two to ring). Fast forward several years the Nest died and I replaced it with another brand. Right off the bat the unit was having issues working and would freeze up. After diagnosing and trying to eliminate the issues, I came across that the original home transformer may not be up to the task. Giving this unit a try so far has been positive as the doorbell has no issues and appears to be keeping the supplementary battery up to charge (one of the issues before).
J**R
OK while it lasts
Bought this 11/2021 to power a single Nest Hello doorbell. It worked OK (I say OK because it always had a slight hum from day 1) until it finally crapped out 7/2022. I originally bought this specific brand and model because of the good reviews and because I was considering powering an additional Nest Hello doorbell at the back door, but it doesn't seem like this one has what it takes to handle even 1 for the long haul. Edit: I contacted the seller and inquired about warranty service due to having issues 7 months after purchase and they offered to send me a new one with no questions asked. Good customer service is worth a lot in my book because even the best products will fail from time to time, so I've upgraded my rating to 4 stars. I'll monitor the new one for a period of time and if it doesn't have a hum and continues putting out consistent VAC, I'll consider upgrading my rating to 5 stars because 1 faulty unit shouldn't represent the product as a whole when the seller jumps at the opportunity to make it right.
O**N
Screw terminal design defective. Don’t buy.
The screw/blade terminals on this unit are defective in design, not just manufacturing. Most of this you can see in the product photo itself: 1) Look at the product photo. Notice the screw heads on the terminals are too small to properly hold down even spade connectors that well, much less bare wire. What you can’t see is that the gauge of the screw shaft is also very thick so there’s not much space under that screw head. 2) Notice the blade terminals are perfectly smooth. They’re not supposed to be super smooth, they’re supposed to have some ridges or dimples to help them hold a blade connector. 3) you can’t tell from the photo, but the tolerances on the threaded screw terminal holes are very poor. The screws were already loose when I got the thing and then I found that one screw couldn’t be tightened at all, it would just turn and turn as though it were stripped. But I suspect the holes were just very poorly tapped because the item did not look used. This is just another one of these third-world products where a critical but cheapest and easiest to get right part is cheaped-out on in an effort to save 1¢, ruining the whole thing. In this case, lots of expensive copper and manufacturing effort has gone to waste because someone couldn’t be bothered to do a proper job with the least expensive critical path component of the whole thing. This is a really stupid way to save money because you lose $10 trying to save 1¢. The design and manufacturing decisions for this product are bad and the VAR did not properly evaluate the white label product they are branding before making a deal with the manufacturer.
M**Z
Funciona bien, aunque tengo muy poco tiempo con el como para valorar la duración, pero por ahora esta funcionando perfectamente
J**U
it works good on my furnace
L**W
I have 2 Nest Hello doorbells on the same transformer. The original transformer was was only putting out 19.1 volts. I was having a problem with my Nest Hello doorbells where one or the other would cut out intermittently. I purchased this transformer, which is a 24 V output hoping that it would solve the problem. And sure enough it did. With both doorbells hooked up, the output voltage of this transformer is 28.4 volts. It was easy to install as well. The top transformer in the photo is the new one compared to the cheap, smaller original one. Obviously, make sure you cut the power to your house before you install this.
A**X
Sirve para Doorbell2 revisen las dimensiones, es pesado y grande
N**I
This transformer works fantastic, I didn't know my doorbell could make sounds I could actually hear!! For years I struggled with missing deliveries and such because my doorbell sound was so weak. I decided to look into getting a video doorbell so I could get notified on my phone, and I learned I needed to upgrade the transformer, which is why I ended up buying this little guy. Now my doorbell actually rings as it should, I don't even need the video doorbell, but I like the added security so I ended up keeping it too. For video doorbells, if anyone is curious, I purchased both the Arlo Video Doorbell and the Eufy Video Doorbell, and it worked fantastic with both! I ended up keeping the Arlo over the Eufy, it works great.
Trustpilot
2 weeks ago
2 weeks ago