The Devil Is in the Details.

While many claim to be “universally compatible,” few actually are. The STEDI™ SMART Harness™ stands apart, equipped with an integrated microprocessor that automatically adapts to even the most complex vehicle wiring systems. It’s designed to deliver a stress-free installation — no cutting, no splicing, no guesswork — just pure plug & play perfection.

⚡ Bridging the Gap

Whether your driving lights use DT or DTP connectors, our SMART Harness™ provides cross-compatibility to eliminate confusion. Its dual-output design lets you power anything from a pair of Type-X™ LED Spotlights to dual slim light bars — giving you maximum flexibility with a single harness.

🚙 ADR Compliant Plug & Play

Fully ADR compliant and plug & play, the SMART Harness™ connects directly to your vehicle’s high beam circuit. It includes HB3 and H4 piggyback adaptors, allowing activation directly from the high beam switch. The waterproof ON/OFF switch gives you full control as an isolator while maintaining clean functionality.

Perfect for Toyota, Ford Ranger, Mazda BT-50, and other 4x4s where wiring high-beam triggers can be notoriously difficult.

🛠 Key Features

• Plug & Play — no splicing or soldering required

• Built-in microprocessor detects positive & negative switching

• Dual-output design for two lights or light bars

• Compatible with DT and DTP connectors

• HB3 and H4 piggyback adaptors included

• Waterproof ON/OFF push switch for cabin installation

• Heavy-duty 10AWG cable for high current

• Fully ADR compliant

• UV-rated insulation for long-term durability

• Compatible with most 12V 4WD systems

📊 Technical Specifications

📦 What’s Included

• 1 × STEDI™ SMART Harness™ (Dual Output)

• 1 × DTP to DT Reducer Set

• 1 × HB3 Piggyback Adaptor

• 1 × H4 Piggyback Adaptor

• 1 × Waterproof Switch

• 1 × Instruction Leaflet