Product: 24 Volt Transformer, C Wire Adapter Thermostats, Power Supply Compatible with Ecobee, Nest and Honeywell Smart WiFi Thermostat, Ring Blink Video Nest Hello Skybell August Doorbell (Black)
Brand: Hotop
Color: Black

Specification:
Input voltage: 120 V/AC, 60 Hz. 
Output voltage: 24 V, 0.3 A/ AC
Length: 23 feet/ 7 m
Compatible with: devices that require 24 volt current for operation, such as smart devices of Nest, Honeywell, Ecobee, Hive, Emerson Sensi, etc.

Package includes:
1 X 24 Volt adapter

Please note:
This is a compatible spare part and the manufacturers' names has been mentioned above for reference purposes only.
24V C Wire power adapter: plugs into your standard 110v/120v outlet and converts to 24 volt AC current
24 volt transformer for doorbells: powers up smart for (Nest, Ecobee, Honeywell, Emerson Sensi, Hive, etc.) and doorbells (Ring, Nest Hello, Skybell, August) that require 24 volt power for operation
UL certified: UL certification passed, stable and durable operation 24V transformer
Easy installation: 2 pin non-polarity wires support easy and quick install, 23 ft cable is long enough to plug it into an electrical outlet inside or outside your house
Packing list: 1 x 24 Volt C wire adapter, 1 bag (50 pieces) of cable clips. Note: Please add a 50W Watt 25 Ohm Resistor if you use this transformer to power a doorbell. The brand mentioned above is just for demonstrating compatibility

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