---
product_id: 670936297
title: "HQRP 120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v, UL"
brand: "hqrp"
price: "22242 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/670936297-hqrp-120v-240v-to-24v-40va-transformer-compatible-with-nest
store_origin: IS
region: Iceland
---

# 40VA high power output 120V-240V universal input UL certified safety & reliability HQRP 120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v, UL

**Brand:** hqrp
**Price:** 22242 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your smart home like a pro — never run out of juice!

## Quick Answers

- **What is this?** HQRP 120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v, UL by hqrp
- **How much does it cost?** 22242 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/670936297-hqrp-120v-240v-to-24v-40va-transformer-compatible-with-nest)

## Best For

- hqrp enthusiasts

## Why This Product

- Trusted hqrp brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** UL Listed for peace of mind with high efficiency and reliable performance
- • **Smart Home Ready:** Works flawlessly with Nest, Ecobee, Honeywell, Sensi, and all Ring doorbell models
- • **Effortless Installation:** Simple screw or clamp mounting for quick, professional setup
- • **Power Up Multiple Devices:** Robust 40VA output powers several thermostats & doorbells simultaneously
- • **Universal Voltage Compatibility:** Seamlessly converts 120V-240V input to stable 24V AC output

## Overview

This HQRP 24V 40VA transformer efficiently converts 120V-240V AC input to a stable 24V AC output, providing reliable power for multiple smart thermostats and doorbells including Nest, Ecobee, Honeywell, Sensi, and all Ring models. UL certified for safety and designed for easy installation, it’s the essential upgrade for any connected home setup.

## Description

120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v, UL

## Features

- HQRP® Replacement Transformer; POWER UP MULTIPLE THERMOSTATS / DOORBELLS: replaces and upgrades underpowered transformer with this 24V AC transformer, offering plenty of power for single or multiple thermostats and doorbells at the same time;
- Input: 120V-240V AC; Output: 24V AC; 40VA; UNIVERSAL COMPATIBILITY: this 24v transformer fits for Nest, Ecobee, Honeywell and Sensi smart thermostats; Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation;
- C(UR)US Listed; Safety Features: High Efficiency and Reliability;
- 1 Year warranty! EASY TO INSTALL: screw down or threaded clamp to electrical box, simple to wire up; Compatible With: 24V 40VA Transformer compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v Replacement;

## Technical Specifications

| Specification | Value |
|---------------|-------|
| UPC | 884667525003 |
| Manufacturer | HQRP |
| Part number | 887774401282011 |
| Item Weight | 712 g |
| Package Dimensions | 10.49 x 6.91 x 6.81 cm; 712 g |
| Item model number | 887774401282011 |
| Style | PRI:120V/240V SEC:24V 40VA |
| Pattern | PRI:120V/240V SEC:24V 40VA |
| Item Package Quantity | 1 |
| Special Features | Compatible With: 120V-240V to 24V 40VA Transformer Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v Replacement |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** HQRP
- **Power source:** Corded Electric
- **Mounting type:** Wall Mount
- **Specification met:** CSA, UL
- **Item weight:** 0.71 Kilograms

## Images

![HQRP 120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v, UL - Image 1](https://m.media-amazon.com/images/I/81ti7lf3OmL.jpg)

## Questions & Answers

**Q: Need a 220v transformer for the ring. Will this work for a single ring and chime in the circuit?**
A: Hello,
It will be appropriate for 220v as well as for the ring.

**Q: Will it keep your ring doorbell charged**
A: Yes it will.  In case of an outage happened, the Ring doorbell still sent messages to your smart phone.

**Q: Can i use this to run a 120v fan with a 24vac thermostat?**
A: You could run 120v from the source (wall, etc) to the fan power and the transformer input, and the 24v transformer output to the thermostat.

**Q: Why black wire is common and white wire is 120v? Is it the white wire is not supposed to be common?**
A: Hello,
There is a diagram in the picture 6, black wire is common.

## Frequently Bought Together

- HQRP 120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v, UL
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**Shop now:** [https://www.desertcart.is/products/670936297-hqrp-120v-240v-to-24v-40va-transformer-compatible-with-nest](https://www.desertcart.is/products/670936297-hqrp-120v-240v-to-24v-40va-transformer-compatible-with-nest)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-23*