--- product_id: 445779592 title: "12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall" brand: "envistia" price: "£17.83" currency: GBP in_stock: true reviews_count: 5 category: "Envistia" url: https://www.desertcart.co.uk/products/445779592-12v-to-9v-1-7a-step-down-waterproof-miniature-dc store_origin: GB region: United Kingdom --- # 12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall **Brand:** envistia **Price:** £17.83 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** 12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall by envistia - **How much does it cost?** £17.83 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/445779592-12v-to-9v-1-7a-step-down-waterproof-miniature-dc) ## Best For - envistia enthusiasts ## Why This Product - Trusted envistia brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description This miniature DC-DC step-down converter module converts a 10V to 24V (perfect for 12V automotive) DC input to 9V DC output at up to 1.7A current (15W maximum).Specifications:Epoxy sealed waterproof housingLightweight, compact, convenient to use and transportNon-isolatedWith overload / over-current / over / low voltage protection, stable performanceAuto recoveryInput voltage: DC 12V nominal, will operate on any input voltage from 10V to 24V DCQuiescent input current (no load attached): 96%Size (L x W x H): 38 * 27 * 23 mm (Length including mounting tabs is 52mm)Weight: 30gCase color: White Cable length: 12cm (approx)Operating Notes:As with any DC-DC converter, the input DC power supply powering this converter must be capable of providing the maximum power drawn by your load. If the input supply is not capable of providing the power, the converter will fold back the output voltage as necessary. Example: If your load draws 1.7A at 9V (15W), and the input supply is only capable of providing 12V at 1/2A (6W), the maximum output voltage the converter will deliver is 3.5V (6W/1.7A).Package includes:1X 12V to 9V 1.7A Mini DC-DC Step Down Converter Review: Working well ! - I needed this item to power a 9V sensor on a remote tank, powered by a solar cell and battery storage. Works great - reliable so far, and nice clean and steady 9V power to my sensor electronics for 24hour monitoring and alerts. Good product for my needs. Review: The perfect fix - I have a 9vdc fan I wanted to connect to my 12vdc solar unit. Works great ## Features - Highly Efficient Buck Converter: This miniature DC-DC step-down converter module converts a 10V to 24V (nominally 12V) DC input to 9V DC output, with an output current of up to 1.7A (15W maximum). - Versatile Voltage Input: This step-down converter will operate on any input voltage from 10V to 24V DC, making it highly versatile in automotive, marine, outdoor and various other uses. - Epoxy Sealed Waterproof Housing: The buck converter is securely housed in an epoxy sealed enclosure, offering excellent waterproof properties for reliable performance in different environments. - Overload and Voltage Protection: The step-down converter is designed with overload, over-current, over and under-voltage protection, ensuring stable performance and longevity of the device. - Perfect for Automotive Applications: Excellent for converting from a car's 12V battery to 9V - Easy to Use: The inputs and outputs are labeled on the sticker on top of the converter, the red and black wires are the + and - 12V input, and the red and yellow wires are the + and - 9V output. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QGXL9XP | | Brand | Envistia | | Brand Name | Envistia | | Current Rating | 1.7 Amps | | Customer Reviews | 4.6 out of 5 stars 97 Reviews | | Item Dimensions D x W x H | 23D x 27W x 23H Millimeters | | Item Weight | 30 Grams | | Manufacturer | Chuangruifa | | Minimum Frequency | 50 Hz | | Model Number | 9V 1.7A DC-DC Converter | | Mounting Type | Surface Mount | | Part Number | 9V 1.7A DC-DC Converter | | Power Source | Battery Powered | | Power Source Type | Battery Powered | | Product Dimensions | 23D x 27W x 23H Millimeters | | Specification Met | CE, UL | | UPC | 732387204923 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Envistia - **Power Source:** Battery Powered - **Current Rating:** 1.7 Amps - **Item Weight:** 30 Grams - **UPC:** 732387204923 ## Images ![12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall - Image 1](https://m.media-amazon.com/images/I/61NjO3dnZ0L.jpg) ![12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall - Image 2](https://m.media-amazon.com/images/I/51Fdabds5sL.jpg) ![12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall - Image 3](https://m.media-amazon.com/images/I/51Hnt0QzMPL.jpg) ![12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall - Image 4](https://m.media-amazon.com/images/I/41BAJaLgaOL.jpg) ![12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall - Image 5](https://m.media-amazon.com/images/I/61qvJxym-rL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Working well ! *by R***A on 23 February 2025* I needed this item to power a 9V sensor on a remote tank, powered by a solar cell and battery storage. Works great - reliable so far, and nice clean and steady 9V power to my sensor electronics for 24hour monitoring and alerts. Good product for my needs. ### ⭐⭐⭐⭐⭐ The perfect fix *by M***E on 10 January 2024* I have a 9vdc fan I wanted to connect to my 12vdc solar unit. Works great ### ⭐⭐⭐⭐⭐ Does precisely what it's supposed to do *by J***E on 18 February 2023* This step-down module is being used to power a wifi-connected IP camera. This device is allowing me to take 12v directly from a battery/solar panel/charge controller and feed it to the camera. This bypasses the need for a 12vDC->120vAC->9vDC transformation along with the inefficiencies that would come at each conversion (or a 12v ->5v USB -> 9v conversion). Well worth the investment for a nearly seamless closed DC power system. ## Frequently Bought Together - 12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall - Envistia Miniature 12V to 5V Step Down DC to DC Voltage Converter 3A 15W Waterproof Power Supply Module --- ## 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.uk/products/445779592-12v-to-9v-1-7a-step-down-waterproof-miniature-dc](https://www.desertcart.co.uk/products/445779592-12v-to-9v-1-7a-step-down-waterproof-miniature-dc) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-20*