--- product_id: 334120064 title: "Oyviny 7 Way Blade to 12V Power Adapter with LED Circuit Tester, 7 Pin RV Blade to 4/5 Way Flat Adapter Trailer Cigarette Lighter Connector for Truck" brand: "oyviny" price: "S$56" currency: SGD in_stock: true category: "Oyviny" url: https://www.desertcart.sg/products/334120064-oyviny-7-way-blade-to-12v-power-adapter-with-led store_origin: SG region: Singapore --- # LED circuit tester for instant diagnostics 7-way to 4/5-way & 12V adapter Universal fit for trucks, RVs & trailers Oyviny 7 Way Blade to 12V Power Adapter with LED Circuit Tester, 7 Pin RV Blade to 4/5 Way Flat Adapter Trailer Cigarette Lighter Connector for Truck **Brand:** oyviny **Price:** S$56 **Availability:** ✅ In Stock ## Summary > 🔧 Tow Smarter, Power Faster, Diagnose Instantly! ## Quick Answers - **What is this?** Oyviny 7 Way Blade to 12V Power Adapter with LED Circuit Tester, 7 Pin RV Blade to 4/5 Way Flat Adapter Trailer Cigarette Lighter Connector for Truck by oyviny - **How much does it cost?** S$56 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/334120064-oyviny-7-way-blade-to-12v-power-adapter-with-led) ## Best For - oyviny enthusiasts ## Why This Product - Trusted oyviny brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Reliable Build:** Engineered for rugged use on the road or off, ensuring your trailer connections stay secure and your power flows uninterrupted. - • **Broad Vehicle Compatibility:** Designed to work flawlessly with major truck and trailer brands including Ford, Chevrolet, Dodge, RAM, Toyota, GMC, Jeep, and more. - • **Instant LED Circuit Testing:** Bright LED indicators let you quickly identify wiring issues in taillights, brakes, turn signals, and auxiliary power—no guesswork, no downtime. - • **All-in-One Multi-Tow Adapter:** Seamlessly convert your 7-way RV blade to 4 or 5-way trailer connectors plus a 12V cigarette lighter socket—ultimate towing versatility. - • **Plug & Play 12V Power Outlet:** Power compressors, coolers, lights, and more directly from your trailer plug—no messy wiring or battery hacks needed. ## Overview The Oyviny 7 Way Blade to 12V Power Adapter is a versatile trailer connector that converts a 7-pin RV blade plug into 4/5-way trailer connectors and a 12V cigarette lighter socket. Featuring built-in LED circuit testing, it allows quick diagnostics of trailer wiring issues. Compatible with a wide range of trucks, RVs, and trailers, this plug-and-play adapter powers accessories like air compressors and coolers without complex wiring, making it an essential tool for professional and recreational towing. ## Description Buy Oyviny 7 Way Blade to 12V Power Adapter with LED Circuit Tester, 7 Pin RV Blade to 4/5 Way Flat Adapter Trailer Cigarette Lighter Connector for Truck: Connectors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Multi-Tow Trailer Adapter: 7 way to 12 volt power adapter not only converts 7 way flat blade to a 4-way or 5-way trailer connector, also adapts 7 way into 12 volt power cigarette lighter socket; Note: This adapter doesn't work with vehicle has a lamp-out sensor - 12V Cigarette Lighter Power Outlet: 12V power can be used to power air compressors, spot/flood lights, inverters, freezer, electric coolers in the back of your truck; Put 12v outlet where you need it, plug and play, much easier solution than running wires from battery to the truck bed; Note: Some vehicle models might do not have a relay in position from the factory to run the 12 volt, if your 12V plug is not working, please check your fuse panel and install the relay fuse - Trailer Circuit Tester. 7 way trailer plug adapter also can be used as a 7 pin trailer tester to check the connectivity of taillights, brake lights, reverse lights, turn signals, electric trailer brakes and auxiliary power, you can find out which wiring has a problem easily with the bright LEDs indicators - 7 Pin to 4 and 5 Pin Trailer Adapter: Multi-function trailer plug adapter converts standard rv blade 7 pin trailer plug to standard 4 and 5 way trailer connector, adding versatile towing options for your vehicle; 4/5 way socket can be used to connect trailer taillights, brake lights, reverse lights and turn signals - Widely Use: 7 way cigarette lighter plug adapter works fine with any factory OEM 7 pin plug, suitable for Truck, Boat, RV, ATV, Chevrolet, Ford, Dodge, RAM, Nissan, Toyota, GMC and Jeep etc ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B095KH8DP7 | | Best Sellers Rank | #60,465 in Automotive ( See Top 100 in Automotive ) #122 in Trailer Connectors | | Brand | Oyviny | | Color | 7 Way to 12V Outlet and 4/5 Way Flat Adapter | | Compatible Devices | Truck, Boat, RV, ATV, Chevrolet, Ford, Dodge, RAM, Nissan, Toyota, GMC, Jeep, Trailers | | Customer Reviews | 4.3 4.3 out of 5 stars (334) | | Input Voltage | 12 volts_of_direct_current | | Manufacturer | Oyviny | | Mfr Part Number | OV2231-001 | | Model Number | OV2231-001 | | Package Quantity | 1 | | UPC | 769894711293 | ## Product Details - **Brand:** Oyviny - **Color:** 7 Way to 12V Outlet and 4/5 Way Flat Adapter - **Compatible Devices:** Truck, Boat, RV, ATV, Chevrolet, Ford, Dodge, RAM, Nissan, Toyota, GMC, Jeep, Trailers - **Input Voltage:** 12 volts_of_direct_current - **Item Package Quantity:** 1 ## Images ![Oyviny 7 Way Blade to 12V Power Adapter with LED Circuit Tester, 7 Pin RV Blade to 4/5 Way Flat Adapter Trailer Cigarette Lighter Connector for Truck - Image 1](https://m.media-amazon.com/images/I/71TIdHIQv2L.jpg) --- ## 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.sg/products/334120064-oyviny-7-way-blade-to-12v-power-adapter-with-led](https://www.desertcart.sg/products/334120064-oyviny-7-way-blade-to-12v-power-adapter-with-led) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-08-30*