{"product_id":"oyviny-2-to-3-wire-tail-light-converter-splice-in-solid-state-adapter-for-trailers-with-pre-stripped-color-coded-leads","title":"Oyviny 2-to-3-Wire Tail Light Converter, Splice-In Solid-State Adapter for Trailers with Pre-Stripped Color-Coded Leads","description":"\u003cstrong\u003eOyviny's 2-to-3-wire splice-in trailer tail light converter turns a two-wire vehicle tail-light system into a standard three-wire trailer circuit so brake and turn signals operate separately.\u003c\/strong\u003e\n\n\u003cp\u003eIf you're towing an older trailer, dinghy, or RV that uses a combined two-wire taillight setup, this compact Oyviny adapter provides a reliable way to split signals into dedicated turn and brake circuits. The unit splices into existing wiring or to a 4-way flat socket and uses color-coded, pre-stripped leads for quicker installation. Built from durable ABS thermoplastic, the converter is designed for long-term service without adding an external flasher or battery taps.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this converter separate brake and turn lights?\u003c\/h3\u003e\n\u003cp\u003eThe converter receives the combined two-wire input and electronically splits it into three distinct outputs so your trailer’s brake and turn lamps respond independently. It uses solid-state circuitry to interpret signal differences and route power accordingly without mechanical relays.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAccepts a 2-wire vehicle tail-light feed and produces standard 3-wire trailer outputs\u003c\/li\u003e\n  \u003cli\u003eSolid-state electronics separate brake vs. turn functions automatically\u003c\/li\u003e\n  \u003cli\u003eColor-coded wiring reduces installation errors\u003c\/li\u003e\n  \u003cli\u003eNo additional flasher relay or battery connection is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicle and trailer setups is this compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis splice-in adapter targets vehicles and towed units that use a combined taillight circuit—commonly older cars, dinghies, and some RV setups. It works well with pickup trucks, vans, and trailers that accept a 3-wire input from a tow vehicle once converted.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for trailers, RVs, dinghies and older tow vehicles with 2-wire outputs\u003c\/li\u003e\n  \u003cli\u003eCan be spliced into trailer wiring or connected at a 4-way flat socket\u003c\/li\u003e\n  \u003cli\u003eNot suitable for vehicles that already use multiplex or low-side switching systems\u003c\/li\u003e\n  \u003cli\u003eDoes not convert a 3-wire vehicle to a 2-wire towed vehicle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is the installation and what materials come with the unit?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone familiar with basic trailer wiring: the converter arrives with pre-stripped, color-coded leads and labeled functions to help you match vehicle wires quickly. The package includes wire taps for direct splicing so you can avoid cutting long harness sections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-stripped and color-coded wires labeled by function for fast hookups\u003c\/li\u003e\n  \u003cli\u003eIncludes wire taps for splicing into existing harnesses without soldering\u003c\/li\u003e\n  \u003cli\u003eCompact ABS housing resists road vibration and weather exposure\u003c\/li\u003e\n  \u003cli\u003eUse basic tools (wire crimper, electrical tape or heat-shrink) to secure connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there any limitations or special warnings to know before buying?\u003c\/h3\u003e\n\u003cp\u003eThere are a few compatibility and function notes to consider: this model does not support tailgate or cargo box lighting, and the solid-state design won’t function properly with some modern low-side switch or multiplex electrical systems. It also cannot be reversed to turn a three-wire vehicle into a two-wire trailer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNot compatible with low-side switch or multiplexed vehicle lighting systems\u003c\/li\u003e\n  \u003cli\u003eTailgate light functions are not supported by this converter\u003c\/li\u003e\n  \u003cli\u003eCannot be used in reverse to convert 3-wire vehicle outputs to 2-wire\u003c\/li\u003e\n  \u003cli\u003eTest connections after installation to confirm proper signal separation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Oyviny 2-to-3-wire tail light converter is aimed at DIY tow-vehicle owners, small-fleet operators, and RV or dinghy enthusiasts who need a dependable, non-invasive way to convert older two-wire tail-light outputs into a modern three-wire trailer circuit. If you want a compact, durable splice-in adapter with clear labeling and included wire taps, this offers a practical solution—provided your vehicle electrical system is of the compatible type.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install this converter myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It includes pre-stripped, color-coded wires and wire taps for DIY splicing with basic electrical tools.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this work with modern multiplex electrical systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The solid-state converter won’t function correctly with low-side switch or multiplex systems.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Oyviny","offers":[{"title":"Default Title","offer_id":55166113612119,"sku":"B08MZ9CC2S","price":36.21,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/oyviny-front-housing-view.jpg?v=1790363355","url":"https:\/\/britishgarage.co.uk\/products\/oyviny-2-to-3-wire-tail-light-converter-splice-in-solid-state-adapter-for-trailers-with-pre-stripped-color-coded-leads","provider":"British Garage","version":"1.0","type":"link"}