24V 40VA Doorbell Transformer – Hardwired Power Supply for Nest, Ecobee, Honeywell and Sensi Smart thermostats and Nest, Ring Doorbell, Easy Installation
Price: $22.99
(as of Feb 24, 2026 15:16:00 UTC – Details)
Tired of dealing with an underpowered, flickering doorbell or a smart thermostat that keeps losing connection? The solution is here. Our 24V 40VA Doorbell Transformer is engineered to deliver consistent, stable power to the smart devices that keep your home secure and comfortable. It’s the simple, powerful upgrade your home needs for flawless performance.
Input: 120V AC, 60Hz; Output: 24V AC, 40VA
Compatible with: Nest, Ecobee, Honeywell and Sensi smart thermostats; Ring Video Doorbell, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation.
Easy to install: Turn OFF the power, open the connector to 90°, insert the power and transformer cords, clamp, and screw down the output.
Universal Compatibility: This 24V 40VA transformer works with most wired smart doorbells and thermostats, including Ring Video Doorbell Pro, Nest, Ecobee, Honeywell, Sensi smart thermostats, and more. Ideal for residential and commercial use.
Stable Power Output: Input: 120V AC 60Hz; Output: 24V AC 40VA. Provides ample and stable power to support single or multiple thermostats and doorbells at the same time, effectively replacing underpowered transformers.
Environmentally Conscious Construction: Made using advanced zinc plating technology to minimise environmental effect, supporting both performance and sustainability.
Fuse Protected for Enhanced Safety: Built-in fuse automatically opens in the event of overload, helping to prevent potential fire hazards and ensuring safe.
Easy Installation: Includes a free quick connector for hassle-free setup. Simply turn OFF the power, open the connector to 90°, insert the power and transformer cords, clamp, and screw down the output. No electrician needed!
