--- 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: "VT24104" currency: VUV in_stock: true reviews_count: 5 category: "Hqrp" url: https://www.desertcart.vu/products/670936297-hqrp-120v-240v-to-24v-40va-transformer-compatible-with-nest store_origin: VU region: Vanuatu --- # 40VA high power output 120V-240V universal input UL & CSA safety certified 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:** VT24104 **Availability:** ✅ In Stock ## Summary > ⚡ Power your smart home like a pro—never miss a ring or a temp drop again! ## 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?** VT24104 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/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, Always:** UL and CSA certified for peace of mind and reliable, efficient performance. - • **Effortless Installation:** Simple screw or clamp mounting with straightforward wiring—get it up and running in minutes. - • **Universal Compatibility:** Seamlessly works with Nest, Ecobee, Honeywell, Sensi thermostats plus all Ring and Nest doorbell versions. - • **Upgrade Your Smart Home:** Replace underpowered transformers and future-proof your smart devices with HQRP’s reliable power adapter. - • **Power Up Multiple Devices:** Robust 24V AC output powers several thermostats and doorbells simultaneously without a hitch. ## Overview The HQRP 120V-240V to 24V 40VA Transformer is a high-efficiency, UL and CSA certified power adapter designed to replace underpowered transformers. Compatible with leading smart thermostats and doorbells including Nest, Ecobee, Honeywell, Sensi, and all Ring models, it delivers stable 24V AC power to multiple devices simultaneously. Easy to install and backed by a 1-year warranty, it’s the smart upgrade for any connected home. ## Description Compatible With 120V-240V to 24V 40VA Transformer Compatible With Nest, Compatible With Ecobee, Compatible With Sensi, Compatible With Honeywell Thermostat, Compatible With Nest Hello Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v ReplacementDisclaimer:This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility. Review: Bonita presentación y muy prácticos y de mucha utilidad Review: Good ## 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 | |---------------|-------| | ASIN | B0849RNB6S | | ASIN | B0849RNB6S | | Best Sellers Rank | #195,472 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #23 in Door Bell Transformers | | Brand Name | HQRP | | Customer Reviews | 4.4 4.4 out of 5 stars (195) | | Customer reviews | 4.4 4.4 out of 5 stars (195) | | Date First Available | 29 June 2020 | | Item Weight | 0.71 Kilograms | | Item model number | 887774401282011 | | Manufacturer | HQRP | | Manufacturer | HQRP | | Minimum Frequency | 60 Hz | | Model | 887774401282011 | | Mounting Type | Wall Mount | | Package Dimensions | 10.49 x 6.91 x 6.81 cm; 712 g | | Part Number | 887774401282011 | | Power Source | Corded Electric | | Specification Met | CSA, UL | | UPC | 884667525003 | ## Product Details - **Brand:** HQRP - **Item weight:** 0.71 Kilograms - **Mounting type:** Wall Mount - **Power source:** Corded Electric - **Specification met:** CSA, UL ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by G***S on 15 April 2023* Bonita presentación y muy prácticos y de mucha utilidad ### ⭐⭐⭐⭐ Review *by A***H on 6 February 2026* Good ### ⭐⭐⭐⭐⭐ Review *by T***Y on 9 March 2026* The transformer in my apartment failed, and this replacement worked perfectly right out of the box. Installation was straightforward, and it restored everything without needing an expensive service call. A simple fix that ended up saving me hundreds of dollars. ## 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 - OEM Upgraded Replacement for Goodman Furnace Vent Air Pressure Switch B13701-42 - OEM 47-22861-01 Replacement Furnace Limit Switch L350 Compatible with Rheem #47-22861-01 (2) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/670936297-hqrp-120v-240v-to-24v-40va-transformer-compatible-with-nest](https://www.desertcart.vu/products/670936297-hqrp-120v-240v-to-24v-40va-transformer-compatible-with-nest) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-08*