Would 24v damage the nest hello? it only need 18v, not 24v.

I been using it for around 3 months with no issues with the Nest Hello.

Does this work with Nest Hello?

Yes it does work with the nest, I'm using it with mine and a pellet stove

The “ul” label is no longer included on the unit. is the unit being shipped longer ul certified?

I really wish people would just not respond if they don't know the answer... Anyway, I just moved and dug my Ring doorbell out of a box along with this transformer. When I installed it, I included a huge 250 Ohm resister for some reason, got the recommendation online. Regardless, the Ring was not charging, so I tested the voltage from the transformer and got 25 volts consistently, not the 24 volts it claims, and not the 8-24 volts my door bell wanted. Sure, I got an extra volt for free, but I don't know what that will do to electronics without knowing what kind of regulator they are using, if any. So, since it provides more voltage than stated, it might not be approved anymore - I don't know. I bought this in late 2019.

Will this work with the vine 610 thermostat

This will work with any thermostat. It simply provides the 24V power needed assuming your tstat wire and doesn’t have the additional wires for 24v power. Most furnaces have the 120/24V transformer, but older homes tstat wire never had enough conductors. Newer homes should. Regardless, yes, this transformer with work.

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

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

Product ID: 69747978

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Details

Brand
VIIVRIA
Power Source
Corded
Product Dimensions
2.17"D x x
Mounting Type
Wall Mount
Current Rating
0.5 Amps

⚡500mA current to reliably power smart devices

📏315-inch (8m) long cable for flexible placement

🔌24V AC output for stable power

Description

🔋 Power your smart home effortlessly—never lose connection or charge again!

EXTENDED REACH - Extra-long 8-meter cable ensures perfect outlet placement anywhere in your home
RISK FREE PURCHASE - 180-day money-back guarantee plus expert customer support to keep you covered
EFFORTLESS INSTALLATION - Plug-and-play design lets you set up in minutes—no electrician needed
UNIVERSAL SMART HOME POWER - Seamlessly powers all major smart thermostats and Ring doorbells without rewiring
CERTIFIED SAFETY RELIABILITY - Backed by safety certifications and a trusted transformer brand for peace of mind

This AC 24 Volt Transformer with a 315-inch cable is engineered to provide consistent, safe power to all popular smart thermostats and Ring doorbells. Its universal compatibility, long cable length, and certified safety features make it the ultimate no-fuss solution for upgrading your smart home setup without rewiring. Backed by a 180-day money-back guarantee and professional support, it’s the reliable power adapter every connected home needs.

Specifications

Item Weight	12.3 Ounces
Manufacturer	1
Part Number	1
Item Weight	12.3 ounces
Product Dimensions	2.17 x 3.94 x 3.15 inches
Item model number	1
Is Discontinued By Manufacturer	No
Voltage	24 Volts
Item Package Quantity	1
Included Components	AC 24 Volt Transformer with 315" Long Cable
Batteries Included?	No
Batteries Required?	No