Need a 220v transformer for the ring. Will this work for a single ring and chime in the circuit?

Hello, It will be appropriate for 220v as well as for the ring.

Will it keep your ring doorbell charged

Yes it will. In case of an outage happened, the Ring doorbell still sent messages to your smart phone.

Can i use this to run a 120v fan with a 24vac thermostat?

You could run 120v from the source (wall, etc) to the fan power and the transformer input, and the 24v transformer output to the thermostat.

Why black wire is common and white wire is 120v? Is it the white wire is not supposed to be common?

Hello, There is a diagram in the picture 6, black wire is common.

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HQRP 120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v, UL

Product ID: 670936297

Details

Brand
HQRP
Mounting type
Wall Mount
Number of Items
1
Power source
Corded
Specification met
CSA UL

⚡40VA high power output

🔌120V-240V universal input

🛠️UL & CSA safety certified

$110.84

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your smart life with confidence and ease!

SAFETY FIRST ALWAYS - UL and CSA certified for peace of mind and reliable, efficient performance in your smart home setup.
EFFORTLESS INSTALLATION - Wall-mount ready with screw or clamp options—get your smart devices powered up in minutes.
UNIVERSAL COMPATIBILITY - Seamlessly works with Nest, Ecobee, Honeywell, Sensi thermostats, plus all Ring and Nest Hello doorbells.
UPGRADE YOUR SMART HOME - Replace underpowered transformers and avoid downtime with this high-efficiency, reliable power adapter.
POWER UP MULTIPLE DEVICES - Robust 24V AC output powers several smart thermostats and doorbells simultaneously without a hitch.

The HQRP 120V-240V to 24V 40VA Transformer is a UL and CSA certified power adapter designed to deliver reliable 24V AC power for multiple smart thermostats and doorbells, including Nest, Ecobee, Honeywell, Sensi, and all Ring models. Its universal input voltage and easy installation make it the perfect upgrade for any smart home enthusiast seeking consistent, high-efficiency power.

Specifications

ASIN	B0849RNB6S
ASIN	B0849RNB6S
Best Sellers Rank	#208,196 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #27 in Door Bell Transformers
Brand Name	HQRP
Customer Reviews	4.4 4.4 out of 5 stars (198)
Customer reviews	4.4 4.4 out of 5 stars (198)
Date First Available	29 June 2020
Item model number	887774401282011
Manufacturer	HQRP
Manufacturer	HQRP
Minimum Frequency	60 Hz
Model	887774401282011
Mounting Type	Wall Mount
Package Dimensions	10.49 x 6.91 x 6.81 cm; 712 g
Part Number	887774401282011
Power Source	Corded Electric
Specification Met	CSA, UL
UPC	884667525003
Unit Count	1.0 Count

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$110.84

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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2 months ago

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