--- product_id: 293842567 title: "24V Transformer C Wire Adapter for All Versions of Ring Doorbell, Eufy E340, Wyze Video Doorbells, and Compatible with Thermostat Nest 1st/2nd, Ecobee, Honeywell, Sensi Power Supply 8M(315 inch)" brand: "liansum" price: "¥4369" currency: JPY in_stock: true reviews_count: 12 category: "Liansum" url: https://www.desertcart.jp/products/293842567-24v-transformer-c-wire-adapter-for-all-versions-of-ring store_origin: JP region: Japan --- # 24V / 500mA stable output 26 ft (8m) ultra-long cable 2-pin non-polarity easy install 24V Transformer C Wire Adapter for All Versions of Ring Doorbell, Eufy E340, Wyze Video Doorbells, and Compatible with Thermostat Nest 1st/2nd, Ecobee, Honeywell, Sensi Power Supply 8M(315 inch) **Brand:** liansum **Price:** ¥4369 **Availability:** ✅ In Stock ## Summary > 🔋 Power your smart home effortlessly—because your devices deserve the best! ## Quick Answers - **What is this?** 24V Transformer C Wire Adapter for All Versions of Ring Doorbell, Eufy E340, Wyze Video Doorbells, and Compatible with Thermostat Nest 1st/2nd, Ecobee, Honeywell, Sensi Power Supply 8M(315 inch) by liansum - **How much does it cost?** ¥4369 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/293842567-24v-transformer-c-wire-adapter-for-all-versions-of-ring) ## Best For - liansum enthusiasts ## Why This Product - Trusted liansum brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Simplicity:** Non-polarity 2-pin wires make installation quick and foolproof—even for first-timers. - • **Safe & Reliable Current:** Built-in protections prevent short circuits, overvoltage, and overheating for peace of mind. - • **Universal Smart Home Power:** Seamlessly powers Nest, Ring, Ecobee & more—no compatibility headaches. - • **Extended Reach Installation:** 26-foot cable lets you place your thermostat or doorbell exactly where you want it. - • **Optimized for Constant Power:** Ensures your smart devices run smoothly 24/7 without power interruptions. ## Overview The LIANSUM 24V Transformer C Wire Adapter delivers a steady 24V/500mA power supply compatible with a wide range of smart thermostats and doorbells including Nest 1st/2nd gen, Ring Video Doorbell series, Ecobee, Honeywell, and more. Featuring a 26-foot cable and easy 2-pin non-polarity wiring, it enables flexible, safe, and reliable installation with built-in protections against electrical faults. Ideal for professionals and smart home enthusiasts seeking hassle-free, constant power for their connected devices. ## Description LIANSUM 24V Transformer C Wire Adapter for Thermostat and All Versions of Ring Doorbell, Compatible with Nest 1st/2nd, Ecobee, Honeywell,Sensi, Sensi Smart WiFi Thermostat,Nest Hello Doorbell Supply: desertcart.com: Tools & Home Improvement Review: Fixed the c wire problem - Works very well , lots of YouTube videos on where and how to install it. Review: As described - Basic instructions were included. Very long cord was nice to have. Worked out well. ## Features - Adapter Compatible with the following devices: Compatible with smart thermostats ( Nest 1st/ Nest 2nd, Ecobee, Honeywell, Sensi, Emerson, Hive, etc ) and doorbells ( Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell, Zmodo WiFi smart doorbell, Nest Hello doorbell, Eufy, Skybell, Arlo etc.) and other devices that require 24 volt power With constant power and constant operation - Product Parameters: Input AC 120V, 60Hz 0.2A, output 24V / 500mA. Cable length is 315 inches / 8 meters. - Easy To Install: 2 pin non-polarity wires support easy and quick install, Assemble along the wall from your outlet to the doorbell and thermostat, 26 ft cable is long enough to plug it into an electrical outlet inside or outside your house. - Security: Special design and materials ensure that provide the best current output connected to your device. Prevent short circuit, overvoltage, overcurrent, overheat, ensure charging safety. - Please note: Please check whether your device is the model in the details before purchasing. Note: Competible with Google Nest Thermostat 1st/2nd, Not Competible with Nest Thermostat 3rd. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08TWDT4J2 | | Best Sellers Rank | #67,814 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #41 in Door Bell Transformers | | Date First Available | January 25, 2021 | | Item Weight | 10.6 ounces | | Item model number | Ring Doorbell Supply | | Manufacturer | LIANSUM | | Product Dimensions | 1.26 x 0.87 x 0.55 inches | | UPC | 733444144916 | ## Product Details - **Brand:** LIANSUM - **Current Rating:** 0.2 Amps - **Mounting Type:** Wall Mount - **Power Source:** Corded Electric - **Specification Met:** RoHS ## Images ![24V Transformer C Wire Adapter for All Versions of Ring Doorbell, Eufy E340, Wyze Video Doorbells, and Compatible with Thermostat Nest 1st/2nd, Ecobee, Honeywell, Sensi Power Supply 8M(315 inch) - Image 1](https://m.media-amazon.com/images/I/61czGkZdNDL.jpg) ## Questions & Answers **Q: Is it compatible with the august doorbell cam pro (aug-ab02-m02-g02) ?** A: what is the voltage requirements of the doorbell camera? if it is 24 volt ac then this should work... look at what the camera requires: voltage, type of voltage and amperage required... so if the camera falls within 24 volts AC at or under 0.2 amps it should work. **Q: Is this wire stranded?** A: yes it is a stranded wire. **Q: Is this wire heat resistant or plenum rated (cmp)?** A: I saw no such rating, and I wouldn’t run it internally ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fixed the c wire problem *by A***N on December 20, 2025* Works very well , lots of YouTube videos on where and how to install it. ### ⭐⭐⭐⭐⭐ As described *by C***K on January 19, 2026* Basic instructions were included. Very long cord was nice to have. Worked out well. ### ⭐⭐⭐⭐⭐ Power Source for Ring Doorbell *by V***E on July 20, 2025* AMAZON, this is why you get all of my MONIES. I FINALLY found the correct item to keep my Ring Doorbells charged without baboon to take them down every month to charge. I've bought solar panel after panel just to return them and I was at my wits end then I came across these. They work perfectly. Easy to install, just plug in any regular wall socket. No mos power supply. Durable, I got the 26in so more then enough wire length to run from Ring to plug. ## Frequently Bought Together - 24Volt Transformer C Wire Adapter for Thermostat and All Versions of Ring Doorbell, Compatible with Nest, Ecobee, Honeywell, Sensi, Sensi Smart WiFi Thermostat, Nest Hello Doorbell Supply Cord - Honeywell Home RTH6580WF Wi-Fi 7-Day Programmable Thermostat - Honeywell Home RENEWRTH6580WF 7-Day Wi-Fi Programmable Thermostat (Renewed) --- ## 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.jp/products/293842567-24v-transformer-c-wire-adapter-for-all-versions-of-ring](https://www.desertcart.jp/products/293842567-24v-transformer-c-wire-adapter-for-all-versions-of-ring) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-17*