24 Volt Transformer, C Wire Adapter for Nest Honeywell Ecobee and Sensi Thermostat, Doorbell Transformer Compatible with Wyze Video Doorbell

Was about to give up using the Google Nest Thermostat since the red heating wire didn't have enough power due to it being a older heating only system. This LITERALLY saved the whole install and now it works perfectly. Just hook up the wire (any of them) to the Rc and C connections and it should be good to go. Thankfully I have an outlet nearby but cable is not as long as I expected so keep note. As for other smart thermostats it should be similar. Sparknotes: If you need a C-wire (additional power) this is the one!

Compatibility: Works with a wide range of smart thermostats, including Ecobee, Nest, Honeywell, and Sensi. Long Cable: Typically comes with a 25-foot cable, providing flexibility in placement and installation. Easy Installation: Plug-and-play design with non-polarity wires for quick and simple setup. Stable Power Supply: Ensures a consistent 24V power, which is essential for the proper functioning of smart thermostats. Safety Certified: Meets safety standards, providing peace of mind during use

The product is amazing. First I deleted the doorbell and added new batteries. Then I wired the terminals (dashed wire is usually negative) Powered up followed the steps in setup and chose mechanical chime. (Digital might not work. Didn’t for me for not having sync module) Then just do whatever necessary 🤌🏽 16-24VAC isn’t common from 115- 120VAC. 12VDC is more common so check the transformer.

It works, and my doorbell was able to be set up. It was easy, and the power supply is very good.

Worked to power my thermostat. Been using it for over a year and still working!

If you are looking for a power supply for your thermostat, don’t trust this device. After a few attempts I tested the device with a meter and it arrived broken. Does not deliver the advertised voltage and is too faulty to be relied on to power a key part of your home

This was a great purchase for my new honeywell wifi thermostat. We recently moved and the thermostat is on the entire other side of the house, down a hall, and away from the main living areas and master. We purchased the wifi thermostat only to find that we do not have a C wire. I was able to plug this into the closet behind the thermostat and feed the wires through a hole behind the thermostat for easy installation. Install one of the two prongs into the C port and the other in Rc port. If you have a jumper from R to Rc, leave it there even if your heater goes to R and the AC needs Rc. Without it, the AC unit won't kick on.

My Eufy doorbell kept running low on battery juice. I researched and saw some great review on this item so I was sold. I ordered one, two actually. Although I've waited far too long to hook it up to the doorbell, but I did test it out and it did work as advertised and I haven't the time to run the wire to the outlet so I procrastinated......BUT as of now, I have become annoyed. I decided to hook it up to my doorbell. The battery Icon show outlet prong... not battery life percentage. Haha...I have constant power. No more every 3 weeks taking the battery out to recharge for 5 hours. Great product. I recommend and approve this.