--- product_id: 130383290 title: "DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB" brand: "j4home" price: "R21" currency: ZAR in_stock: true reviews_count: 8 url: https://www.desertcart.co.za/products/130383290-dc-dc-ring-alarm-keypad-converter-step-down-module-12v store_origin: ZA region: South Africa --- # Input: DC8-20V Output: DC5V3A Waterproof Housing DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB **Brand:** j4home **Price:** R21 **Availability:** ✅ In Stock ## Summary > 🔌 Power Up Your Projects with Confidence! ## Quick Answers - **What is this?** DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB by j4home - **How much does it cost?** R21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/130383290-dc-dc-ring-alarm-keypad-converter-step-down-module-12v) ## Best For - j4home enthusiasts ## Why This Product - Trusted j4home brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Equipped with overload, over-current, and overheat protection. - • **Built to Last:** Industrial-grade temperature range: -40°C to +85°C. - • **Durable Design:** All epoxy sealed for maximum durability and waterproofing. - • **Transform Your Power:** Seamlessly convert 12V to 5V for versatile applications. - • **Compact & Lightweight:** Weighs only 1.44 ounces for easy integration. ## Overview The j4home DC-DC Ring Alarm Keypad Converter is a robust step-down module that efficiently converts 12V to 5V, ensuring stable performance with built-in safety features. Its compact design and waterproof housing make it ideal for various applications, even in extreme temperatures. ## Description Buy j4home DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Ideal for old alarm to RING alarm conversions. See photos - This j4home was just the adapter that was needed to allow for hookup of a new 2nd Gen RING alarm system in place of an old hardwired ADT system. The RING package comes with a standard outlet wired plug and as a result, clean wall mount installation is not possible. This adapter allows to power the RING alarm from the two (red and black) power wires that were used for my old setup. One side is the red and black wires which join to the red and black wires on the old alarm setup and the other side is the RING jack. It installs easily and functions perfectly. I attached pictures for reference. I now have a seamless, wire free wall mount on my RING alarm and had no issues with the adapter not fitting or being a different size with this Gen 2 module. Good luck. Review: Works great with Ring keypads (Gen. 2) - I bought two of these to keep my Ring keypads charged using the existing 4-wire cables for the old Brinks alarm pads. I simply connected them to the existing wires and then feed 15 volts into the wires in the closet where the old alarm system lived. The USB cable that is attached to them fits just fine in the Ring 2.0 keypads (didn't try with a 1.0) though it does take some pressure to insert. No offense to the fine engineers that designed these, but I'm only going to plug in the adapter for a few hours every few months to top the batteries off. If you leave them connected full time I'd suggest feeding them with an "LPS" (limited power source) rated power supply. These have over-current protection to reduce the risk of a fire in case of an internal short or a short in the wires. ## Features - Input voltage: DC8-20V, (12V changes to 5V) - Output parameter: DC5V3A, 15W - With overload/over-current/overheat/low voltage protection, stable performance. - All epoxy sealed containers with Waterproof Housing. - Operating Temperature: Industrial (-40 degree to +85 degree) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07RDGR9GF | | Best Sellers Rank | #608,207 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,740 in Power Converters | | Brand | j4home | | Compatible Devices | Cars, Trucks, SUVs, Vans, Motorcycles | | Customer Reviews | 4.3 4.3 out of 5 stars (529) | | Includes Remote | No | | Manufacturer | j4media | | Mfr Part Number | J4-001 | | Model Number | J4-001 | | UPC | 037203894242 | ## Product Details - **Brand:** j4home - **Compatible Devices:** Cars, Trucks, SUVs, Vans, Motorcycles - **Manufacturer:** j4media - **Remote Control Included?:** No - **UPC:** 037203894242 ## Images ![DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB - Image 1](https://m.media-amazon.com/images/I/819PpcGgyoL.jpg) ![DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB - Image 2](https://m.media-amazon.com/images/I/61wCLmA-ttL.jpg) ![DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB - Image 3](https://m.media-amazon.com/images/I/31lROYAJ8gL.jpg) ![DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB - Image 4](https://m.media-amazon.com/images/I/610WeNQ5riL.jpg) ![DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB - Image 5](https://m.media-amazon.com/images/I/71ZpY+L35pL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Ideal for old alarm to RING alarm conversions. See photos *by K***. on June 17, 2020* This j4home was just the adapter that was needed to allow for hookup of a new 2nd Gen RING alarm system in place of an old hardwired ADT system. The RING package comes with a standard outlet wired plug and as a result, clean wall mount installation is not possible. This adapter allows to power the RING alarm from the two (red and black) power wires that were used for my old setup. One side is the red and black wires which join to the red and black wires on the old alarm setup and the other side is the RING jack. It installs easily and functions perfectly. I attached pictures for reference. I now have a seamless, wire free wall mount on my RING alarm and had no issues with the adapter not fitting or being a different size with this Gen 2 module. Good luck. ### ⭐⭐⭐⭐⭐ Works great with Ring keypads (Gen. 2) *by M***D on August 24, 2020* I bought two of these to keep my Ring keypads charged using the existing 4-wire cables for the old Brinks alarm pads. I simply connected them to the existing wires and then feed 15 volts into the wires in the closet where the old alarm system lived. The USB cable that is attached to them fits just fine in the Ring 2.0 keypads (didn't try with a 1.0) though it does take some pressure to insert. No offense to the fine engineers that designed these, but I'm only going to plug in the adapter for a few hours every few months to top the batteries off. If you leave them connected full time I'd suggest feeding them with an "LPS" (limited power source) rated power supply. These have over-current protection to reduce the risk of a fire in case of an internal short or a short in the wires. ### ⭐⭐⭐⭐⭐ Worked as expected *by J***N on January 7, 2020* I purchased the ring alarm system and bought these for the keypads. I was able to connect this adapter to the existing alarm wires to power the keypad. Works perfectly without issues. Just a note. This is not specific to this adapter, just in general to charging the ring keypad at all times. The ring keypad will always illuminate the green battery icon (solid green when fully charged). The alarm status (home, away, disarmed) will always illuminate as well, which I think is great as you can see the status from across the room. You can dim the alarm status LED light in the keypad settings of the ring app but not the green battery icon. ## Frequently Bought Together - j4home DC-DC Ring Alarm Keypad Converter Step Down Module 12V to 5V Micro USB - Ring Retrofit Alarm Kit - existing wired security system and Ring Alarm required, professional installation recommended - Ring Alarm Keypad (2nd Gen) --- ## 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.co.za/products/130383290-dc-dc-ring-alarm-keypad-converter-step-down-module-12v](https://www.desertcart.co.za/products/130383290-dc-dc-ring-alarm-keypad-converter-step-down-module-12v) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-04-23*