24Volt 500mA Doorbell Transformer Competible with All Versions of Ring Doorbell and Nest Hello Doorbell,C Wire Adapter for Nest,Ecobee, Sensi and Honeywell Thermostat,8M (315″) Long Cable
£9.98






Price: £9.98
(as of Jun 19, 2025 20:03:27 UTC – Details)
Product Description


Power adapter production process and inspection process
High standards of production environment and testing equipment.

Hardwired power supply
By setting the doorbell as a hard-wired power supply, the doorbell is always in a charging state and will never be powered off, which can save the trouble of frequently disassembling and charging the battery.

8m/315” wire cable
Our adapter is 8M (315inch) cord, long enough to reach your outlets,And with Wire Clip, convenient wire routing.
Packing List:
1×24 Volt power adapter
1 bag*Gift Wire Clip (20pcs)

Easy installation

For Thermostats
1. Cut off the power of circuit breaker.
2. Install the wire from your 24 volt adapter to the “C” terminal and the other wire to the “RC” terminal. You need to use included jumper and connect from “RH” to “RC” terminals,if HVAC system has a cooling.
3. Plug the power adapter into the socket and turn on the power of the circuit breaker.
4. Install the panel on the thermostat.
Installation guide
1.Loosen the screw behind the doorbell.2.Link 2 wire tips to the two terminal on the back of the doorbell.3.Switch on the 230-240V AC power, until the rim of the button flash white light.4.Starts to work when the Power voltage is good.
• Input voltage: 230-240 V/AC, 50 Hz • Output voltage: 24 V, 0.5 A/ AC • Cable length: 315inch

WIDELY USE: UK Plug power cable Powers your popular smart thermostats((Nest, Ecobee, Honeywell, Sensi) and doorbells(For Ring Video Doorbell, for Ring Video Doorbell 2 & for Ring Video Doorbell Pro,for Nest etc.) and other devices that require constant 24 volt power for operation, enables you to charge your devices safely.Note: The brand above is only for demonstrating compatibilityyy
EASY TO USE:Assemble along the wall from your outlet to the doorbell and thermostat without the existing doorbell or wiring. Easy installation and be able to set up in minutes.
LONG CABLE:Our cable is 8M(315 inch) long and you do not worry about the distance between the socket and the Honeywell Smart Wifi Thermostat. This allows you to easily plug it into an electrical outlet inside or outside your house.
SAFE AND CONVENIENT :A quick fix to the problem of “Low batter” by hard wiring (plug adapter into outlet and power up). that means you don’t need to remove your doorbell in order to charge up the battery.With an AC output of 24V/500mA, a perfect tool to meet your needs.
Specification: input voltage: 230-240 VAC, 50/60Hz; Output voltage: 24V, 500mA ,No-load output voltage: 26.6V,No equipment connected, directly tested with a multimeter AC No-load voltage; 26.6V
Note: The brand above is only for demonstrating compatibilityyy
Customers say
Customers find the transformer works well with Ring doorbells and appreciate its long cable length and easy-to-follow installation instructions. The power level receives positive feedback, with one customer noting it provides continuous power to Ring doorbells. While some customers say it’s not noisy at all, others report buzzing from the transformer. The build quality and heat level receive mixed reviews, with several customers reporting poor build quality and the transformer running very hot.
8 reviews for 24Volt 500mA Doorbell Transformer Competible with All Versions of Ring Doorbell and Nest Hello Doorbell,C Wire Adapter for Nest,Ecobee, Sensi and Honeywell Thermostat,8M (315″) Long Cable
Add a review
£9.98
Kindle Customer –
Perfect for ring doorbell
Perfect for a ring doorbell no humming or buzzing, good quality
Numpty Dave. –
Ideal power supply
I bought this to power up my eufy doorbell, it is perfect for the job.
DIY Jo –
Worked with Ring doorbell
Nice long cable, saves recharging the doorbell.
Ioan Zaharia –
Good quality item
Delivered on time, had usefor almost a month with no overheating or noise. I must admit have some buzz but is not disturbing for the moment. Time will tell how long will last
D williams –
good
excellent
Taffy llewelyn –
It Never Worked
Never Worked ..I even had it tested and in the bin it went ..can’t be ass’t
Patrice Mcguinness –
Ringo
Ringo doorbell now wired in permanently no need to worry about battery running out
Tony Hoyle –
Excellent
Much neater than my previous solution. Totally silent.Worth noting that it is only 500ma so will only power the Nest/Ring doorbell not a traditional bell, which typically require more power. I wonder if some people are attempting to do that which would explain the problems, as it is just a transformer, there isn’t much to go wrong.