Will-Burt Sirion HL 4x6 LED Headlight

SIRION HL

Next‐Generation 4×6 LED Headlight

Premium retrofit or OEM upgrade for professional vehicles

The Sirion HL is Will‐Burt’s next‐generation 4×6 LED headlight, engineered as a premium upgrade for replacing aging halogen units or integrating into new vehicle builds. Fully DOT / FMVSS 108 compliant and CISPR 25 Class 1 certified, it delivers advanced roadway illumination with uniform light distribution, no dark spots, and superior clarity compared to halogen and legacy LED options. Built with high‐performance LED technology and a distinctive full‐halo signature light, the Sirion HL enhances visibility, signaling, and safety in demanding environments. Designed for seamless retrofit compatibility, it drops directly into standard 4×6 housings to minimize installation time and vehicle downtime. Backed by Will‐Burt’s proven durability and long limited warranty, the Sirion HL sets a new benchmark for professional‐grade headlight performance.

KEY BENEFITS

• Certified Performance
  • DOT / FMVSS 108 Compliant and CISPR 25 Class 1 Certified
• Engineered for Roadway Safety
  • Designed to enhance visibility and reduce risk in critical environments such as emergency response and construction zones
• Uniform Light Distribution
  • Casts a consistent, uninterrupted beam pattern that eliminates dim zones and uneven lighting
• Premium LED Technology
  • Utilizes high-quality LEDs for extended lifespan, energy efficiency, and optimal performance in all conditions
• No Dark Spots
  • Advanced optics virtually eliminate shadowing and blind areas, ensuring full-spectrum illumination
• Superior to Halogen and Legacy LEDs
  • Outperforms traditional halogen and poorly designed LED headlights in clarity, brightness, and beam consistency
• Full-Halo Signature Light
  • Surrounds the entire lamp with a distinctive ring that supports wig-wag functionality for enhanced visibility and signaling
• Optimized for Retrofit Integration
  • Engineered to seamlessly replace 4x6-inch halogen fixtures, reducing installation complexity and minimizing vehicle downtime
• Lifetime warranty for Fire Apparatus or 5-years for all other vehicles and markets
  • Backed by Will-Burt’s commitment to durability and reliability in demanding field applications

Specifications