Plug & Play Simplicity.

The STEDI™ H4 Piggyback Adaptor offers a fast, clean, and non-invasive way to connect your driving lights without modifying your vehicle’s factory wiring. With true plug-and-play convenience, this adaptor eliminates the need for splicing or soldering — ensuring a professional, OEM-grade installation.

⚡ Seamless Integration

Engineered to connect directly to your vehicle’s H4 high-beam socket, the STEDI™ Piggyback Adaptor allows effortless connection to your STEDI™ Smart Wiring Harness. Designed for precision and reliability, it provides a strong and secure interface between your headlight circuit and auxiliary lighting system.

🔌 Optimized for STEDI™ Smart Harness

The H4 Piggyback Adaptor is specifically designed to pair perfectly with STEDI™ Smart Harnesses, ensuring a flawless fit and performance.

⚠️ Please note: Compatibility with third-party harnesses cannot be guaranteed.

🔩 Key Features

• Plug-and-play installation – no splicing, cutting, or soldering required

• Preserves factory wiring integrity

• OEM-grade connectors ensure a perfect electrical fit

• Durable, high-quality construction for long-lasting performance

• Compatible exclusively with STEDI™ Smart Harness systems

🛠 Technical Specifications

📦 What’s Included

• 1 × STEDI™ H4 Piggyback Adaptor