High Output 4″x6″ LED Headlight Upgrade
Upgrade your factory sealed beam headlights with a high-output ULTRALIT LED solution. Designed for 4″x6″ applications, these headlights provide brighter, whiter light and improved durability for demanding conditions.
Ideal for trucks, heavy-duty vehicles, and fleet applications needing reliable performance.
Available in Low Beam & High Beam Options
These headlights are offered as separate beam-specific units.
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Low Beam Output: 750 lumens
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High Beam Output: 1000 lumens
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Select the correct beam type for your application
6500K White Light Output
Designed to produce a modern, crisp white light.
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6500 Kelvin color temperature
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Closely matches daylight appearance
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Improves clarity compared to traditional halogen
Built for Durability
Engineered to withstand harsh working environments.
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Corrosion-resistant polycarbonate lens & housing
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Solid-state design resists shock and vibration
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Designed for long-term reliability
12–24V Compatibility
Works across a wide range of electrical systems.
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Compatible with 12V and 24V setups
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Ideal for semi-trucks and heavy-duty equipment
Plug-and-Play Style Installation
Designed for straightforward installation in standard 4″x6″ housings.
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Fits OEM 4″x6″ headlight housings
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Connects to existing wiring harness
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Direct replacement design
Note: Installation may vary depending on vehicle setup.
Compliance & Fitment
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Standard 4″x6″ headlight size
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Low beam and high beam units sold separately
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DOT / SAE compliant (FMVSS 108)
What’s Included
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(1) ULTRALIT LED Headlight (Low OR High Beam – based on selection)
Frequently Asked Questions About 4×6 LED Headlights
Are these headlights sold as a pair?
No. Low beam and high beam headlights are sold separately. Be sure to select the correct option for your setup.
What vehicles use 4″x6″ headlights?
4″x6″ headlights are commonly used on older trucks, semi-trucks, and various heavy-duty vehicles.
What does 6500K color temperature mean?
6500K produces a cool white light that closely resembles daylight, improving clarity and visibility.
Are these brighter than halogen sealed beams?
Yes, LED headlights provide a more consistent and modern light output compared to traditional halogen sealed beams.
Do these work on both 12V and 24V systems?
Yes, these headlights are designed for both 12V and 24V applications.
Are these plug-and-play?
They are designed to connect to your existing wiring harness for straightforward installation. Some variation may occur depending on setup.
Do I need a load resistor?
A load resistor may be required depending on your vehicle. Check compatibility if experiencing issues.
What is the difference between low beam and high beam?
Low beam is used for normal driving, while high beam provides increased distance visibility for dark conditions.
Are these good for fleet vehicles?
Yes. Their durable construction and vibration resistance make them ideal for heavy-duty and fleet use.
