Pinnacle of Performance. Built for the Brave.

The STEDI™ ST4K 28” Double Row LED Light Bar stands at the intersection of power and precision. Designed using Pure Drive™ technology, an incredible 97% of input power is directed straight to the LEDs — delivering maximum efficiency, minimal loss, and a beam that commands the night.

Packing 52 OSRAM® OSLON® high-performance LEDs, the ST4K 28” projects a staggering 755 m beam distance at 1 Lux, while casting 55 m of wide flood coverage on either side. Whether cutting through dust, fog, or pitch-black terrain, this light bar is engineered to perform in every condition.

Born from the STEDI™ Type-X™ heritage, the ST4K series continues our tradition of combining design precision with raw lighting performance.

🔑 Key Features

✅ Pure Drive™ Efficiency: Transfers 97% of power directly to light output for maximum brightness.
💡 Hybrid Optics: 8 Flood + 36 Spot + 8 Flood configuration for wide shoulders and deep forward projection.
🌌 Crystal White 5700K Beam: Produces daylight clarity with superior colour contrast.
💧 IP68 Certified: Fully waterproof, dustproof, and submersible up to 3 metres.
⚙️ A360.0 Alloy Build: Cast aluminium faceplate and extruded heat sink for exceptional heat dissipation and strength.
🌬️ Gore® Membrane Vent: Prevents condensation and pressure build-up.
🔩 Dual Mounting Options: Use adjustable sliding mounts or 3 mm stainless steel side brackets with ±15 mm adjustability.
🔌 Plug & Play Wiring Harness: H4 & HB3 adaptors included for effortless high-beam integration.
📡 EMC & RFI Protected: Ensures no interference with radio, GPS, or communication devices.
💪 Australian Backed: Covered by a 5-Year Replacement Warranty — tested and trusted by STEDI™.

⚙️ Technical Specifications

📦 What’s Included

• 1 × STEDI™ ST4K 28” LED Light Bar (52 LED)

• 2 × Brushed Stainless Steel Side Brackets

• 2 × Adjustable Sliding Brackets

• Easy-Fit Plug & Play High Beam Wiring Kit

• HB3 & H4 Piggyback Adaptors

• Cable Ties

• Wiring Instructions