Oyviny Hy-Power Diodes Kit – Trailer Light Isolating Diodes, 4-Pack (2IN/1OUT)

Overview of the Oyviny Hy-Power Diodes Kit

Tow setups can be demanding on electrical systems. The Oyviny Hy-Power Diodes kit is designed to help you manage signals between a motorhome or RV and a towed vehicle with a focus on reliable illumination and simple serviceability. This compact kit fits into standard harness spaces and aims to keep lighting clear and consistent when you’re on the road.

How the Hy-Power design works

Each diode acts as a one-way valve for electric current, helping to prevent backfeed from the towed vehicle into the tow vehicle. The kit is configured for two input lines (from the vehicle) and one output line (to the taillights), making it suitable for common tow scenarios and reducing cross-talk between circuits.

What you get and how to use it

• Four Hy-Power diodes that isolate circuits and protect lighting components.
• Twelve wire connectors to make clean, durable splices into your existing harness.
• Four pieces of double-sided tape for secure mounting in your engine bay or frame area.

These diodes are designed to connect into the towed vehicle's brake light, running light, and turn signal wiring, providing a straightforward upgrade path when replacing old or damaged diodes. The installation is described as simple splicing: swap out the old spade connectors and insert the Hy-Power diodes in their place.

The benefits you might notice on the road

• Backfeed protection helps keep taillight operation consistent as you tow, reducing the chance of conflicting signals.
• Independent isolation of the taillight circuit can help maintain distinct brake, running, and turn indicators for both vehicles.
• Compact hardware that fits within standard harnesses without heavy rewiring, which can save time during a camping trip or road adventure.
• Replaceable components and a clear upgrade path if a diode or connector wears or fails.

Who this is for

Ideal for RV owners, trailers, and motorhomes that tow with a separate taillight circuit. If you regularly hit the road with a trailer in tow, this kit offers a practical, non-invasive approach to managing lighting signals.