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

It worked perfectly.

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.

Working fine . Good price .Slightly warm to the touch , so may not be as efficient as it might be given its negligible load .

Easy to use.

working great with Ring Bell , fast delivery , thank you

I got this so I can power my nest thermostat up stair but after I plug in still no power, I leave it plugged in for 15-20 mins the power adapter got very warm

After I installed my new sensi thermostat, it occurred to me that replacing the batteries as much as once a day was not too likely to happen with any longevity.I researched a bit and found this power supply to work around the batteries.I didn't know why my sensi unit insisted that new batteries lasted less than a day, but that's not important because with this power supply it doesn't really need any batteries.I think that's pretty cool!

I have purchased several of these to power my nest doorbell cameras. They come with plenty of wire so plugging into a power source has not been a problem. I prefer having power to the camera instead of batteries and this has worked perfectly.