Oyviny 2-to-3-Wire Trailer Tail Light Converter | Splice-In for Trailer, RV, Towing

The Oyviny 2-to-3-Wire Trailer Tail Light Converter is designed to transform a 2-wire vehicle electrical system into a standard 3-wire setup, enabling separate brake and turn signals for trailers, RVs, dinghies, and towing configurations. This compact adapter helps you maintain clear signaling, even with diverse trailer electrical systems, while keeping the installation straightforward and tidy.

Built for reliability, the converter splices directly into the tail light wiring, delivering a durable connection that supports long-term use on the road. It can also be spliced to a 4-way flat socket for flexible mounting and compatibility with different trailer wiring layouts. The unit features standard color-coded, pre-stripped leads and includes wire taps to simplify connections, so you can complete the upgrade with confidence.

Durable construction you can rely on

Encased in a high-strength ABS thermoplastic housing, the device withstands heat, moisture, and impacts typical of outdoor trailer use. Inside, the design avoids the need for a heavy-duty flasher or direct battery hook-ups, reducing complexity while preserving performance.

Easy installation and intuitive use

The wires arrive color-coded and pre-stripped, with wire taps included to splice into existing tail light circuits quickly and securely. Clear labeling on the functions helps you wire the tail lights and signals together with less guesswork, contributing to a cleaner electrical harness behind the bumper or taillights.

Important notes and compatibility considerations

• Tailgate light function is not supported in this 2-to-3-wire converter.
• All solid-state components may not work with low-side switch or multiplex systems.
• This device cannot be reversed to convert a 3-wire tow vehicle to a 2-wire towed vehicle.

Key installation features

• Direct splice integration into the tail light wiring for a durable connection
• Standard color-coded and pre-stripped leads for straightforward wiring
• Included wire taps for quick, secure splicing into existing circuits
• Compatibility with a 4-way flat socket for versatile mounting
• No heavy-duty flasher or battery connection required

What you gain

• Clear separation of brake and turn signals for trailers and towed loads
• Cleaner, organized wiring with less clutter behind tail lights
• Durable ABS housing designed for outdoor use
• Simple, user-friendly installation without specialized tools