ST4K 52” Double Row LED Light Bar (100 LED) - Stedi LEDST4K-52-100L

Pinnacle of Performance. The Final Evolution of the ST4K Series.

The STEDI™ ST4K 52” Double Row LED Light Bar represents the ultimate expression of power, precision, and endurance. Engineered with Pure Drive™ technology, this flagship model converts 97% of electrical input directly into light output, delivering staggering performance that few can rival.

Harnessing the output of 100 OSRAM® OSLON® LEDs, the ST4K 52” commands an astonishing 1 Lux at 1,050 metres, while projecting a 55 m-wide flood pattern for complete roadside illumination. Whether tearing through the Australian outback or navigating remote terrain, this light bar ensures no detail goes unseen.

Built upon the STEDI™ Type-X™ pedigree, the ST4K 52” combines iconic design with hardcore performance, proving once again why STEDI remains the industry benchmark for LED lighting excellence.

🔑 Key Features

✅ Pure Drive™ Efficiency: 97% of input power channelled directly into light output.
💡 Hybrid Beam Distribution: 16 Flood + 68 Spot + 16 Flood configuration for the perfect balance of distance and spread.
🌌 1 Lux @ 1,050m: Exceptional reach and definition across all driving conditions.
🌈 Crystal White 5700K Colour Temperature: Delivers true colour rendition and eye comfort.
⚙️ Precision Build: A360.0 cast aluminium faceplate with extruded alloy heat sink for superior heat management and structural strength.
💧 IP68 Certified: Fully dustproof and waterproof — submersible up to 3 metres.
🌬️ Gore® Pressure Vent: Prevents condensation and maintains internal air balance.
🔩 Dual Mounting Options: Adjustable sliding mounts and 3 mm stainless steel side brackets (±15 mm height range).
🔌 Easy-Fit Plug & Play Harness: Supplied with H4 and HB3 adaptors; compatible with modern positive and negative switching systems.
📡 RFI/EMC Protection: Ensures zero interference with GPS, UHF, or communication systems.
💪 5-Year Warranty: Backed by STEDI’s no-nonsense Australian replacement guarantee.

⚙️ Technical Specifications

📦 What’s Included

• 1 × STEDI™ ST4K 52” LED Light Bar (100 LED)

• 2 × Brushed Stainless Steel Side Brackets

• 3 × Adjustable Sliding Brackets

• Easy-Fit Plug & Play High Beam Wiring Kit

• HB3 & H4 Piggyback Adaptors

• Cable Ties

• Wiring Instructions