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10 Best Doorbell Transformer For Video Doorbell 2025 in the United States

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Our Top Picks

#1

Winner

AC 24 Volt Transformer, C Wire Adapter, Competible with All Versions of Ring Doorbell and Thermostat for Ecobee,Sensi and Honeywell, 315" Long Cable

Rating
10.0
Chosen by1,233
Voltage
Compatibility
Installation

Most important from
6407 reviews

Voltage
Works perfectly to provide c-wire voltage to an Emerson Sensi Smart thermostat, ensuring it operates reliably without draining batteries.
Compatibility
Works perfectly with Honeywell T5 smart thermostats, and the long power cord is very convenient.
Installation
Came quickly, easy to install, works perfectly.

The VIIVRIA AC 24 Volt Transformer is a versatile and highly compatible option for powering various smart devices like Ring doorbells and popular thermostats such as Ecobee and Honeywell. One of its standout features is its long 315-inch cable, which offers flexibility in installation, allowing users to reach outlets that may be further away from their devices. The ease of installation is a major plus, as it eliminates the need for complicated wiring, making it suitable for those who may not be very tech-savvy.

Safety and reliability are also key strengths, as this transformer has received certifications for safe operation, providing peace of mind. Users can benefit from the convenience of a battery backup feature, which solves common issues like low battery alerts without needing to remove the devices for charging.

While the transformer is well-received, some users may find the installation process not as intuitive as advertised, especially if their space or outlet configuration is unconventional. Additionally, being corded limits its portability; it must be used near an electrical outlet. It's important to verify if your specific model is included, as compatibility can vary. VIIVRIA offers a good customer service experience along with a 180-day money-back guarantee, which adds an extra layer of trust for consumers.

Rating
10.0
Chosen by1,233
Voltage
Compatibility
Installation

Most important from
6407 reviews

Voltage
Works perfectly to provide c-wire voltage to an Emerson Sensi Smart thermostat, ensuring it operates reliably without draining batteries.
Compatibility
Works perfectly with Honeywell T5 smart thermostats, and the long power cord is very convenient.
Installation
Came quickly, easy to install, works perfectly.
#2

Newhouse Hardware 3TRAN Tri-Volt (8vac/10VA, 16vac/10VA or 24vac/20VA) Transformer for for Ring, Nest and Standard Doorbells 1pk

Rating
10.0
Installation
Compatibility
Voltage

Most important from
2926 reviews

Installation
Installation is straightforward and well-supported by clear instructions, making setup hassle-free.
Compatibility
The transformer successfully powers modern video doorbells and restores compatibility with existing chimes.
Voltage
It provides flexible voltage options to match specific doorbell requirements, ensuring reliable performance.

The Newhouse Hardware 3TRAN Tri-Volt transformer is a versatile choice for powering video doorbells like Ring, Ring Pro, and Nest Hello, as well as traditional doorbells. It offers three voltage settings (8VAC/10VA, 16VAC/10VA, and 24VAC/20VA), with the highest setting supporting most video doorbells that require more power. This flexibility means it can replace older, weaker transformers that may cause problems with modern smart doorbells. The transformer is UL certified, which adds a layer of safety and reliability.

Installation is straightforward with its surface-mount design and standard corded electric power source. Its compact size should fit easily into most setups. Users should ensure they select the correct voltage setting for their specific doorbell model to avoid compatibility issues. While the transformer is rated at 3 amps, which is sufficient for single doorbell systems, it might not support multiple devices or very high-power setups.

If you plan to upgrade your doorbell and chimes together, pairing this transformer with Newhouse’s chimes can streamline installation. This transformer serves as a solid, dependable option when you need a straightforward power upgrade for your video or traditional doorbell without complicated installation.

Rating
10.0
Installation
Compatibility
Voltage

Most important from
2926 reviews

Installation
Installation is straightforward and well-supported by clear instructions, making setup hassle-free.
Compatibility
The transformer successfully powers modern video doorbells and restores compatibility with existing chimes.
Voltage
It provides flexible voltage options to match specific doorbell requirements, ensuring reliable performance.
#3

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

Rating
9.9
Compatibility
Installation

Most important from
443 reviews

Compatibility
Fixed my problem of intermittent power loss for my Ring Doorbell Pro 2.
Installation
Easy to install and worked as expected. My doorbell chime now works great.

The BOJACK 24V 40VA Thermostat and Doorbell Transformer is a versatile power supply designed to replace underpowered transformers. It provides an output of 24 volts and 40 volt-amps (VA), making it suitable for a variety of devices, including Nest, Ecobee, Honeywell, and Sensi smart thermostats, as well as Ring and Nest video doorbells. This compatibility is a significant strength, as it ensures that users with multiple devices can rely on one transformer for their power needs.

The transformer is UL-certified, indicating a level of safety and reliability in its performance. Users will appreciate the easy installation process, which involves screw-down and thread clamps that attach to an electrical box, making it accessible even for those who may not be experienced with electrical work. Additionally, the transformer is designed to be mounted on surfaces, which can simplify placement in various settings. However, keep in mind that it is a corded electric device, so access to a power outlet is necessary.

The product is lauded for its durability, though the actual longevity can vary based on individual usage and environmental conditions. Its dimensions (3.1 x 2.3 x 4.8 inches) and relatively light weight (1.68 pounds) make it a manageable size for most installations. The BOJACK transformer is a robust and reliable option for powering both thermostats and video doorbells, though users should ensure their specific power requirements align with its 24V/40VA output.

Rating
9.9
Compatibility
Installation

Most important from
443 reviews

Compatibility
Fixed my problem of intermittent power loss for my Ring Doorbell Pro 2.
Installation
Easy to install and worked as expected. My doorbell chime now works great.

Buying Guide for the Best Doorbell Transformer For Video Doorbell

Choosing the right doorbell transformer for your video doorbell is crucial to ensure that your device operates efficiently and reliably. A doorbell transformer converts the high voltage from your home's electrical system to a lower voltage that your video doorbell can use. When selecting a transformer, you need to consider several key specifications to ensure compatibility and optimal performance. Understanding these specifications will help you make an informed decision and avoid potential issues such as insufficient power or device malfunction.
VoltageVoltage is the measure of electrical potential difference and is crucial for the proper functioning of your video doorbell. Most video doorbells require a specific voltage range, typically between 16-24 volts. If the voltage is too low, the doorbell may not work correctly, and if it's too high, it could damage the device. To choose the right voltage, check the requirements of your video doorbell and select a transformer that matches those specifications. Ensure that the transformer provides a stable voltage within the recommended range for your device.
VA Rating (Volt-Amps)The VA rating indicates the power capacity of the transformer, combining both voltage and current. It is essential to ensure that the transformer can supply enough power to your video doorbell. Common VA ratings for doorbell transformers range from 10VA to 40VA. A higher VA rating means the transformer can handle more power, which is beneficial if you have multiple devices connected or if your video doorbell has higher power requirements. To choose the right VA rating, check the power consumption of your video doorbell and select a transformer that meets or exceeds that requirement.
CompatibilityCompatibility refers to whether the transformer can work with your specific video doorbell model. Different video doorbells may have varying power requirements, so it's important to ensure that the transformer you choose is compatible with your device. Manufacturers often provide compatibility information, so check the specifications of both the transformer and your video doorbell. If in doubt, consult the manufacturer's guidelines or customer support to confirm compatibility.
InstallationInstallation involves the process of connecting the transformer to your home's electrical system and your video doorbell. Some transformers are designed for easy installation with clear instructions and minimal tools required, while others may need professional installation. Consider your comfort level with electrical work and whether you prefer a DIY installation or professional help. Choose a transformer with straightforward installation instructions if you plan to install it yourself, or opt for one that recommends professional installation if you are not confident in handling electrical components.
Durability and SafetyDurability and safety are important factors to ensure the long-term reliability and safe operation of your doorbell transformer. Look for transformers that are built with high-quality materials and have safety features such as thermal protection to prevent overheating. Additionally, check for certifications like UL (Underwriters Laboratories) that indicate the transformer meets safety standards. Choosing a durable and safe transformer will help prevent potential hazards and ensure that your video doorbell operates smoothly over time.

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