Search  for anything...
BOJACK

BOJACK 24V 40VA Thermostat and Doorbell Transformer, Power Supply Compatible with Nest, Ecobee, Sensi and Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell

    • Based on 202 reviews
Condition: New
Checking for product changes
$19.99 Why this price?
Save $6.00 was $25.99

Buy Now, Pay Later

As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 9
Order within 14 hours and 18 minutes
Available payment plans shown during checkout

Style: 24V 40VA


Features

  • Powers thermostats and doorbells: replace underpowered transformers
  • Input :120 VAC, 60 Hz; Output: 24 V/ 40 VA
  • This 24 Volt transformer is UL-certified, offers reliable performance
  • Easy to install: screw down and thread clamps to electrical box
  • This 24 V transformer fits for Nest, Ecobee, Honeywell and Sensi smart thermostats; Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation

Description

This 24 V transformer fits for Nest, Ecobee, Honeywell and Sensi smart thermostats; Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation BOJACK 24V/40VA Thermostat and Doorbell Transformer, Power Supply Compatible with Nest, Ecobee, Sensi and Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell (4011MT) Powers thermostats and doorbells: replace underpowered transformers Easy to install: screw down and thread clamps to electrical box This 24 volt transformer is UL-certified, offers reliable performance Input is 120 VAC, 60 Hz; Output: 24 V/ 40 VA This 24v transformer fits for Nest, Ecobee, Honeywell and Sensi smart thermostats; Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation


Package Dimensions ‏ : ‎ 4.88 x 3.27 x 2.4 inches; 1.65 Pounds


Item model number ‏ : ‎ BJ-4011-24V


Date First Available ‏ : ‎ October 22, 2020


Manufacturer ‏ : ‎ BOJACK


Country of Origin ‏ : ‎ China


Best Sellers Rank: #44,968 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #40 in Door Bell Transformers


#40 in Door Bell Transformers:


Customer Reviews: 4.4 4.4 out of 5 stars 202 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 9

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.

  • Klarna Financing
  • Klarna Pay in 4
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • These are pretty reliable
Style: 24V 40VA
I have purchased a number of these in the past, and they work reliably and satisfactorily.
Reviewed in the United States on September 7, 2023 by Old Man River
    • Much needed upgrade for ring doorbell
Style: 24V 40VA
Replaced an original to help with my ring doorbells. What a difference my cameras are Chrystal clear and stay charged at 💯 didn't realize how important the upgrade would be. Easy to install follow you tube. Great investment.
Reviewed in the United States on August 9, 2023 by T. Burger
    • your video doorbell doesn't ring doorbell chimes
Style: 16V 30VA
We needed more power for the new Nest gen 2 wired doorbell to ring our doorbell chime. Staying with 16 volt transformer, but tripling the volt amps with this transformer did the trick. I recommend.
Reviewed in the United States on August 1, 2023 by Peter
    • 16 volt transformer
Style: 16V 30VA
Perfect for two systems
Reviewed in the United States on August 21, 2023 by Farhang Naderi
    • Quick Fix for Ring Doorbell Upgrade
Style: 24V 40VA
Like: Fast delivery - brand new and undamaged transformer- fixed problem of low power to a Ring Pro camera and mechanical chime - simple switch out for old transformer (I hired electrician to do that part) Dislike - nothing
Reviewed in the United States on July 26, 2023 by Amazon Customer
    • Works afaik. Easy to install
Style: 24V 40VA
Easy to install. Replacing an older but still functional15Ah transformer. My intent was to get something that would "trickle charge" my ring doorbell 3 plus. In that regard, it doesnt work any better than the old one. Disappointing, but likely not an issue with the transformer, just shoddy design and misleading marketing from Ring... ... show more
Reviewed in the United States on February 20, 2023 by azfatboy
    • Make Sure VA Matches Device
Style: 24V 40VA
My ring doorbell has gone through two transformers in a year. One was purchased locally, the second from Amazon. The Amazon unit said it was for Ring doorbells and it was a 30VA unit as was the local purchase. However, the Ring unit is labeled as 40VA. I haven't installed it yet as it is too darn hot in my attic right now! I will update later. ... show more
Reviewed in the United States on September 1, 2022 by Dan Proctor
    • None
Style: 16V 30VA
Very good transformer
Reviewed in the United States on May 26, 2023 by Placeholder

Can't find a product?

Find it on Amazon first, then paste the link below.