--- product_id: 622598441 title: "120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell" brand: "hqrp" price: "104374CFA" currency: XOF in_stock: true reviews_count: 5 category: "Hqrp" url: https://www.desertcart.sn/products/622598441-120v-240v-to-24v-40va-transformer-compatible-with-nest-ecobee store_origin: SN region: Senegal --- # 40VA power output 120V-240V wide input range Easy screw or clamp installation 120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell **Brand:** hqrp **Price:** 104374CFA **Availability:** ✅ In Stock ## Summary > ⚡ Power your smart home with confidence and ease! ## Quick Answers - **What is this?** 120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell by hqrp - **How much does it cost?** 104374CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/622598441-120v-240v-to-24v-40va-transformer-compatible-with-nest-ecobee) ## 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 - • **Robust Power Delivery:** Delivers a reliable 24V AC at 40VA to keep your smart home devices running flawlessly. - • **Universal Compatibility:** Works seamlessly with Nest, Ecobee, Sensi, Honeywell thermostats, and all Ring doorbells. - • **Plug & Play Installation:** Screw or threaded clamp mounting makes setup effortless—no electrician needed. - • **Trusted Quality with Warranty:** Backed by a 1-year warranty and made in the USA, ensuring long-term performance. - • **Certified Safety & Reliability:** C(UR)US listed for peace of mind with high efficiency and durability built-in. ## Overview The HQRP 120V-240V to 24V 40VA Transformer is a versatile, UL-listed power solution designed for smart thermostats and doorbells including Nest, Ecobee, Sensi, Honeywell, and Ring. It supports a wide input voltage range, delivers stable 24V AC output, and features easy installation with screw or clamp mounting. Engineered for high efficiency and reliability, it comes with a 1-year warranty and is proudly made in the USA. ## Description HQRP Replacement Transformer; Wide Compatibility This transformer is designed for use in industrial, heating and air conditioning control systems, including thermostats, air conditioning circuits, relays and gas valves or other applications; Input: 120V-208V-240V AC; Output: 24V AC; 40VA; C(UR)US Listed; Safety features: High efficiency and reliability; 1 year warranty! EASY TO INSTALL: screw or threaded clamp on the electric box, easy to wire; Compatible with:24V 40VA transformer, compatible with Nest, Ecobee, Sensi, Honeywell thermostat, Nest Hello doorbell and all versions of the ring doorbell Review: Excelente producto y muy buena calidad - Bonita presentación y muy prácticos y de mucha utilidad Review: Work good - Good ## Features - HQRP Replacement Transformer; Wide Compatibility This transformer is designed for use in industrial, heating and air conditioning control systems, including thermostats, air conditioning circuits, relays and gas valves or other applications; - Input: 120V-208V-240V AC; Output: 24V AC; 40VA; - C(UR)US Listed; Safety features: High efficiency and reliability; - 1 year warranty! - EASY TO INSTALL: screw or threaded clamp on the electric box, easy to wire; Compatible with:24V 40VA transformer, compatible with Nest, Ecobee, Sensi, Honeywell thermostat, Nest Hello doorbell and all versions of the ring doorbell ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0849RNB6S | | Best Sellers Rank | #224,510 in Home Improvement ( See Top 100 in Home Improvement ) #20,638 in Home Improvement Electrical | | Brand | HQRP | | Brand Name | HQRP | | Country of Origin | USA | | Customer Reviews | 4.4 out of 5 stars 200 Reviews | | Included Components | Transformer. | | Manufacturer | HQRP | | Minimum Frequency | 50 Hz | | Model Number | 887774401282011 | | Mounting Type | Wall Mount | | Number of Items | 1 | | Part Number | 887774401282011 | | Power Source | AC mains | | Power Source Type | AC mains | | Specification Met | CSA, UL | | UPC | 884667525003 | ## Product Details - **Brand:** HQRP - **Item Weight:** 0.71 Kilograms - **Mounting Type:** Wall Mount - **Power Source:** AC mains - **Specification Met:** CSA, UL ## Images ![120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell - Image 1](https://m.media-amazon.com/images/I/71rlVobRSBL.jpg) ![120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell - Image 2](https://m.media-amazon.com/images/I/81E+YqERO7L.jpg) ![120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell - Image 3](https://m.media-amazon.com/images/I/81ej9juUS6L.jpg) ![120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell - Image 4](https://m.media-amazon.com/images/I/71Ubz543fDL.jpg) ![120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell - Image 5](https://m.media-amazon.com/images/I/71D2lYqcT7L.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 ### ⭐⭐⭐⭐⭐ Excelente producto y muy buena calidad *by G***S on 15 April 2023* Bonita presentación y muy prácticos y de mucha utilidad ### ⭐⭐⭐⭐ Work good *by A***H on 6 February 2026* Good ### ⭐⭐⭐⭐⭐ Perfect Replacement That Saved Me Hundreds *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.sn/products/622598441-120v-240v-to-24v-40va-transformer-compatible-with-nest-ecobee](https://www.desertcart.sn/products/622598441-120v-240v-to-24v-40va-transformer-compatible-with-nest-ecobee) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-13*