Doorbell Transformer 16-24 vac Ring Doorbell Ring Doorbell Wired Doorbell Transformer Ring Doorbell Charger Ring Power Adapter 24 Volt Transformer C Wire Adapter for Smart Thermostat (240500-16.4ft)
Price: $12.96 - $10.36
(as of Nov 27, 2025 18:58:32 UTC – Details)
From the brand
Essential Check #1 Before Purchase:
Check the doorbell and smart thermostat user manuals for voltage specs. Most doorbells run on 16–24V AC, and thermostats typically use 24V AC.
Is this power supply universally compatible with smart doorbells and thermostats？
Check the user manual for your doorbell and thermostat – they’ll list the required AC voltage. Most models typically run on 24V AC, but always confirm compatibility first.
Are the two output wires on this power supply different?
No difference – AC power isn’t polarity-sensitive. Wire the doorbell/thermostat first, then power on.
Product Dimensions : 1.57 x 1.97 x 2.36 inches; 13.12 ounces
Item model number : 240500-16.4ft
Date First Available : August 24, 2025
Manufacturer : Dadaodadao
ASIN : B0FNLGT359
Best Sellers Rank: #298,226 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #146 in Door Bell Transformers
Customer Reviews: 4.9 4.9 out of 5 stars 25 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Compatible with Multiple Devices – This Ring charger is compatible with all versions of Ring Doorbell, including Video Doorbell 2, Video Doorbell Pro, and Nest Doorbell. ’24vac-16.4ft’ is also fully compatible with smart thermostats such as Honeywell, Nest doorbell wired, Skybell, and Sensi, etc. ensuring a wide range of Ring thermostat home devices can be powered seamlessly
Safe and Convenient – “Low battery” issues is solved. The Ring doorbell transformer is a quick and convenient way to charge your smart doorbell continuously. Now get rid of all battery issues and with no more interrupt or any safety concerns
Continuous Ring doorbell power supply for Multiple Devices – This ring power adapter is designed to replace and upgrade underpowered transformers, ensuring a continuous and sufficient ring transformer for your smart thermostats and doorbells. With this Ring doorbell transformer for ring wired, you can say goodbye to frequent battery replacements, ensuring seamless operation for your devices
Easy to Install and Maintain – Assemble along the wall from your indoor outlet to the doorbell. The non-polarity wire is much easier for quick installation
DADAODADAO – A Brand You Can Trust: DADAODADAO has specialized in Ring doorbell accessories for over a decade, earning a strong reputation in the North American market. Our focus on reliable and durable products ensures top performance for your smart home devices. If you have any questions or concerns, our dedicated customer service team is always here to assist you
