24Volt Transformer C Wire Adapter for Thermostat and All Versions of Ring Doorbell, Compatible with Nest 1st/2nd, Ecobee, Honeywell, Sensi, Sensi Smart WiFi Thermostat, Nest Hello Doorbell Supply Cord

AMAZON, this is why you get all of my MONIES. I FINALLY found the correct item to keep my Ring Doorbells charged without baboon to take them down every month to charge. I've bought solar panel after panel just to return them and I was at my wits end then I came across these. They work perfectly. Easy to install, just plug in any regular wall socket. No mos power supply. Durable, I got the 26in so more then enough wire length to run from Ring to plug.

Works well to provide power to your unit

Very easy to install and works great! I installed this for my Sensi smart thermostat. Just attach to RC and C, plug in, and you're golden!

The adapter works as advertised.

The item was as advertised and works. The real test will be how long it works, but so far so good.I had an older nest thermostat that I wanted to hook up to a Jotul propane stove. The propane stove uses a 2 wire thermostat, so to use the Nest I needed to power it. The power supply was easy to hook up and so far it works fine.

This adapter uses extremely thin stranded wire that does not make reliable contact with Nest's terminals. Even when properly delivering 24V AC, the connection is unstable or rejected. Avoid if you're powering a smart thermostat without a C wire.

The media could not be loaded. It works as intended. Unbelievable!. Successfully adds a C wire to a two wire systemUsing it for Honeywell wifi heating only system

I order this transformer for the 2nd time. 1st one worked great with my Ring doorbell.2nd transformer didn't work and shorted out my Ring. While they refunded the cost of the transformer, I now have to purchase a new Ring doorbell. Amazon nor the seller was willing to compensate any money towards buying another Ring doorbell. 😟