--- product_id: 202025118 title: "24VAC 40VA Plug in Transformer,Doorbell Transformer Compatible with All of Doorbell，Nest, Ecobee, Sensi and Honeywell Thermostat" brand: "wuyelin" price: "186.99 DT" currency: TND in_stock: true category: "Wuyelin" url: https://www.desertcart.tn/products/202025118-24vac-40va-plug-in-transformer-doorbell-transformer-compatible-with-all store_origin: TN region: Tunisia --- # 24VAC stable output 40VA high power capacity Easy screw terminal install 24VAC 40VA Plug in Transformer,Doorbell Transformer Compatible with All of Doorbell，Nest, Ecobee, Sensi and Honeywell Thermostat **Brand:** wuyelin **Price:** 186.99 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power your smart home like a pro — no compromises, just seamless energy. ## Quick Answers - **What is this?** 24VAC 40VA Plug in Transformer,Doorbell Transformer Compatible with All of Doorbell，Nest, Ecobee, Sensi and Honeywell Thermostat by wuyelin - **How much does it cost?** 186.99 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/202025118-24vac-40va-plug-in-transformer-doorbell-transformer-compatible-with-all) ## Best For - wuyelin enthusiasts ## Why This Product - Trusted wuyelin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe & Smart Design:** Built-in auto-resetting PTC fuse and LED power indicator ensure stable, worry-free operation. - • **Robust 40VA Capacity:** Delivers ample 1.66A current to support all major smart thermostats and video doorbells seamlessly. - • **Universal Compatibility:** Works flawlessly with Nest, Ecobee, Honeywell, Sensi, and all popular doorbell brands. - • **Reliable 24VAC Power Boost:** Upgrade your thermostat & doorbell with consistent 24VAC, eliminating battery hassles. - • **Sleek, Customizable Installation:** Screw terminals and cut-to-length cable let you create a clean, professional setup every time. ## Overview The WUYELIN 24VAC 40VA Plug-in Transformer is a high-performance power solution designed to reliably energize smart thermostats and video doorbells. With a stable 24VAC output, 40VA capacity, and universal compatibility with top brands like Nest, Ecobee, Honeywell, and Sensi, it eliminates frequent battery replacements. Featuring a safe auto-resetting fuse, LED power indicator, and easy screw terminal installation, this wall-mount transformer ensures a clean, efficient, and worry-free smart home upgrade. ## Description 24VAC 40VA Plug in Transformer,Doorbell Transformer Compatible with All of Doorbell，Nest, Ecobee, Sensi and Honeywell Thermostat - desertcart.com ## Features - Doorbell/Thermostat power solution: 24Vac 40VA wall transformer, using this Transformer to replace and upgrade the insufficient power transformer, can provide sufficient power for your thermostat and doorbell, save the trouble of frequent battery replacement - Specification: input voltage: 120 VAC, 60Hz; Output voltage: 24V, 40VA ,No-load output voltage: 26.6V,SAFE AND STABLE auto-resetting (PTC) fused secondary, LED green power indicator - Compatible With: This transformer compatible for Honeywell, for Nest, for Ecobee, and Sensi smart thermostats; Also compatible with Video Doorbell, Video Doorbell 2, Video Doorbell Pro, for Nest Skybell Doorbell。Note: The brand above is only for demonstrating compatibilityyy - Easy to install:Output with screw terminals, You can freely cut the connecting cable and arrange the cable according to the length you need to make the installation simple and beautiful - Multimeter test products: When using a multimeter to test products, pay attention to using an AC voltmeter or multimeter to test the output voltage value, and use a voltage tester to measure accurate voltage output data. The no-load voltage output measured by the multimeter is about 26.6-28V, which is normal and does not affect any use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B085WPNC29 | | Best Sellers Rank | #27,272 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #17 in Door Bell Transformers | | Brand Name | WUYELIN | | Current Rating | 1.66 Amps | | Customer Reviews | 4.4 4.4 out of 5 stars (1,202) | | Item Dimensions D x W x H | 2.1"D x 2.5"W x 3.8"H | | Item Weight | 0.7 Kilograms | | Manufacturer | WUYELIN | | Maximum Frequency | 60 Hz | | Minimum Frequency | 60 Hz | | Model | HU-XI-22 | | Mounting Type | Wall Mount | | Part Number | HU-XI-22 | | Power Source | Corded Electric | | Specification Met | RoHS | | UPC | 791309016563 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** WUYELIN - **Current Rating:** 1.66 Amps - **Mounting Type:** Wall Mount - **Power Source:** Corded Electric - **Product Dimensions:** 2.1"D x 2.5"W x 3.8"H ## Images ![24VAC 40VA Plug in Transformer,Doorbell Transformer Compatible with All of Doorbell，Nest, Ecobee, Sensi and Honeywell Thermostat - Image 1](https://m.media-amazon.com/images/I/51+xAjpjPsL.jpg) ## Questions & Answers **Q: what does the OV stand for?** A: OV stands for output voltage **Q: Will this support 2 different ring doorbells?** A: yes,You need to connect correctly **Q: Do they normally get a little hot?** A: The transformer will get a little hot during operation. If the temperature exceeds the load, there is a recoverable fuse at the output of the transformer, the protection will be activated and the output will be disconnected **Q: Will this work with the Logitech Circleview Doorbell?** A: If it takes 24V, then yes. I have it on my Ring which needs 16-24V, works great. ## Frequently Bought Together - 24VAC 40VA Plug in Transformer,Doorbell Transformer Compatible with All of Doorbell，Nest, Ecobee, Sensi and Honeywell Thermostat - Emerson 90 380 Fan Relay 24 Volt Coil, 1 --- ## 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.tn/products/202025118-24vac-40va-plug-in-transformer-doorbell-transformer-compatible-with-all](https://www.desertcart.tn/products/202025118-24vac-40va-plug-in-transformer-doorbell-transformer-compatible-with-all) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-03*