Stedi
ST4K 42” Double Row LED Light Bar (80 LED) - Stedi LEDST4K-42-80L
Pinnacle of Performance. Built to Dominate the Night.
The STEDI™ ST4K 42” Double Row LED Light Bar is the definition of uncompromising illumination. Powered by Pure Drive™ technology, this powerhouse transfers 97% of input power directly to light output, maximising efficiency and producing a beam that cuts through the darkness with staggering clarity.
With 80 OSRAM® OSLON® high-intensity LEDs, the ST4K 42” delivers a jaw-dropping 936 m beam distance at 1 Lux, while maintaining a 55 m flood on either side for full peripheral coverage. Whether tearing through off-road tracks or commanding the highway, this is lighting built to perform beyond expectations.
Born from the STEDI™ Type-X™ DNA, the ST4K range continues to set the benchmark for high-output driving lights with precision optics, superior construction, and trademark reliability.
🔑 Key Features
✅ Pure Drive™ Efficiency: 97% of power delivered straight to LEDs for maximum light output.
💡 Precision Beam Control: 12 Flood + 56 Spot + 12 Flood configuration for an ultra-balanced beam.
🌌 Crystal White 5700K Output: Provides daylight clarity and superior definition in all environments.
💧 IP68 Certified: Dustproof, waterproof, and submersible up to 3 metres — built for the harshest conditions.
⚙️ Premium Build Quality: A360.0 cast aluminium faceplate and extruded heat sink with UV-resistant polyester coating.
🌬️ Pressure Equalisation Vent: Gore® membrane prevents internal fogging and pressure build-up.
🔩 Mounting Flexibility: Includes sliding mounts for precision fitment and 3 mm stainless steel side brackets with ±15 mm height adjustability.
🔌 Plug & Play Harness: Easy-Fit wiring kit with built-in electronics; compatible with both positive and negative switching systems.
📡 EMC/RFI Suppression: Zero interference with radio, GPS, or communication devices.
💪 5-Year Warranty: No-nonsense Australian-backed replacement coverage — built to outlast the road ahead.
⚙️ Technical Specifications
| Specification | Details |
|---|---|
| LED Manufacturer | OSRAM® OSLON® |
| LED Count | 80 |
| Effective Lumens | 19,200 lm |
| Peak Intensity (Candela) | 883,200 cd |
| Beam Pattern | Flood / Spot Combo |
| Beam Distance | 1 Lux @ 936 m |
| Operating Voltage | 12 V & 24 V |
| Current Draw | 18.2 A @ 13.6 V |
| Colour Temperature (CCT) | 5700 K |
| Lens Material | Optical Grade, Hard-Coated Lexan™ |
| Housing Material | A360.0 Cast Aluminium + Extruded Alloy |
| Mounting Options | Adjustable Sliding Brackets + 3 mm Stainless Steel Side Brackets |
| Ingress Protection | IP68 (Submersible up to 3 m) |
| Flood Beam Angle | 50° |
| Spot Beam Angle | 5.8° |
| Operating Temperature | –40 °C to +60 °C |
| Weight | 5.43 kg |
| Lifespan | 50,000 Hours |
📦 What’s Included
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1 × STEDI™ ST4K 42” LED Light Bar (80 LED)
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2 × Brushed Stainless Steel Side Brackets
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3 × Adjustable Sliding Brackets
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Easy-Fit Plug & Play High Beam Wiring Kit
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HB3 & H4 Piggyback Adaptors
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Cable Ties
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Wiring Instructions