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DESCRIPTION
FEATURES & BENEFITS
- Enhanced Visibility: 18,000CD low beam, 37,000CD high beam for superior night driving.
- Timeless Style: Classic sealed beam appearance preserved with modern LED technology.
- Easy Installation: Ultra-shallow design fits most 1950-1980 vehicles without modification.
- Custom Options: Choose warm-white or pure white LED, or opt for a Euro yellow lens look.
- Durable & Serviceable: Philips-Lumileds LEDs, UV-coated lens, and 20,000-hour lifespan with replaceable cartridges.
WHAT’S INCLUDED
Headlight : 2x Holley RetroBright 4x6 Rectangle LED Headlights
Wiring : H4 Male Input
WARRANTY INFORMATION
This warranty is only valid if the item is purchased from an Authorized Dealer, Click HERE for a list of unauthorized dealers.
TECHNICAL SPECIFICATIONS
Intensity : 18,000 candela (Low), 37,000 candela (High)
Power : 20w (Low), 35w (High)
Luminous Flux : 2,000lm (low), 3000lm (high)
Input Voltage : 9-18V DC
Power : 25W (low), 30W (high)
Traffic Pattern : LHD Only
Material : Cast Aluminum (Housing), UV treated Polycarbonate (Lens)
Light Source : Philips Lumileds ZES 3000K (Classic White) or ZES 5700K (Modern White)
COMPATIBILITY
Sealed Beam Standards : H4651, H4652, H4656, H4666, HP6545, HP4651, HP4656, HP4666
Input Wiring : H4 3-pin (low/high/ground)
Buick Century : 1976-1988
Buick Electra : 1976-1990
Buick Estate Wagon : 1977-1983
Buick LeSabre : 1977-1986
Buick Regal : 1982-1987
Buick Riviera : 1977-1985
Buick Skyhawk : 1977-1988
Buick Skylark : 1986-1988
Chevrolet Astra : 2001
Chevrolet Aveo : 2013
Chevrolet Blazer : 1987-1997
Chevrolet C10 : 1980-1986
Chevrolet C10 Suburban : 1980-1986
Chevrolet C20 : 1980-1987
Chevrolet C20 Suburban : 1980-1986
Chevrolet C2500 : 1988-1989
Chevrolet C3500 : 1988-1989
Chevrolet C4500 Kodiak : 2003-2009
Chevrolet C5500 Kodiak : 1990-2009
Chevrolet Camaro : 1982-1992
Chevrolet Caprice : 1976-1986
Chevrolet Cavalier : 1982-1987
Chevrolet Celebrity : 1982-1985
Chevrolet Chevelle : 1976-1977
Chevrolet El Camino : 1976-1987
Chevrolet Impala : 1977-1985
Chevrolet K10 : 1981-1986
Chevrolet K10 Suburban : 1980-1986
Chevrolet K20 : 1980-1986
Chevrolet K20 Suburban : 1980-1986
Chevrolet K2500 : 1988-1989
Chevrolet K30 : 1981-1986
Chevrolet K3500 : 1988-1989
Chevrolet K5 Blazer : 1980-1986
Chevrolet Monte Carlo : 1976-1988
Chevrolet Monza : 1975-1980
Chevrolet Nova : 1985-1988
Chevrolet R10 : 1987
Chevrolet R10 Suburban : 1987-1988
Chevrolet R20 : 1987-1988
Chevrolet R20 Suburban : 1987-1988
Chevrolet R2500 : 1989
Chevrolet R2500 Suburban : 1989-1991
Chevrolet R30 : 1987-1988
Chevrolet R3500 : 1989-1991
Chevrolet S10 : 1992-1997
Chevrolet Suburban : 1987-1992
Chevrolet T6500 : 1997-2009
Chevrolet T7500 : 1997-2009
Chevrolet T8500 : 2004-2009
Chevrolet V10 : 1987
Chevrolet V10 Suburban : 1987-1988
Chevrolet V20 : 1987
Chevrolet V20 Suburban : 1987-1988
Chevrolet V30 : 1987-1988
Dodge Caravan : 1989-1991
Dodge Charger : 1978-1987
Dodge Stealth : 1992-1993
Ford Mustang : 1979-1997
Freightliner Classic : 2002-2010
Freightliner FLD112 : 1991-2006
Freightliner FLD120 : 1988-2011
GMC Caballero : 1982-1987
GMC Jimmy : 1982-1996
GMC Sonoma : 1991-1997
Kenworth T400 : 1989-2018
Kenworth T600A : 1986-2007
Kenworth T800 : 1987-2018
Kenworth W900 : 1985-2019
Lincoln Town Car : 1982-1988
Oldsmobile 98 : 1977-1989
Oldsmobile Calais : 1985-1987
Oldsmobile Cutlass Calais : 1980-1991
Oldsmobile Cutlass Ciera : 1982-1996
Oldsmobile Cutlass Cruiser : 1980-1994
Oldsmobile Cutlass Salon : 1980-1986
Oldsmobile Cutlass Supreme : 1976-1988
Oldsmobile Delta 88 : 1977-1991
Peterbilt 357 : 1988-2008
Peterbilt 378 : 1989-2007
Peterbilt 379 : 1986-2007
Pontiac Firebird : 1977-1981
Pontiac Grand Prix : 1976-1987
Interchange Part Number : 4pcs 4x6 Glass LED Headlights, 4x6 inch LED headlight, 4x6 headlight housing + H4 LED headlight, H4656, H4666, H4651, H6545, H4652
Manufacturer Part Number : 1002-W-XC-4PCS, 2PC Black 4x6 LED Headlights, 4pcs 4x6 Glass LED Headlights, 4x6 inch Rectangular LED Headlight, 5D 4x6 inch headlight, Pair 4x6 LED Headlights Hi-Lo Beams, Teammade744
OE/OEM Part Number : 1994-1997 S10 Headlight, 4x6 LED headlights, HHH-2509FGHJSZBS, HHH-4SBHG2SDHGTG, HHH01310189XXCFR
Superseded Part Number : HHH-2509FGHJSZBS
The Search is Over: Just because you love your classic car doesn't mean you have to live with poor visibility at night. Until now, you had two options... keep it stock, or find a brighter set of headlights that would compromise the period-correct styling. The Holley RetroBright LED Sealed beam headlights deliver the best of both worlds. They pair the safety and performance benefits of modern LED headlights with the old-school look of your original sealed beam lights.
Superior: Light output effectively illuminates the road for added safety at night. The Holley RetroBright 4x6 Rectangular LED sealed beams produce 18,000CD for low beam, and 37,000CD for high beam, which is nearly three times more light output than your original lights. Their beam pattern is well distributed for excellent width, long-range visibility, and added range in high beam mode. These patent pending lights were engineered entirely in the USA by Morimoto, the masters in performance automotive lighting.
Quad Hi-Low: Because each 4x6 headlight has a high and low beam function, you can wire the new lights to work simultaneously with the optional adapters (SKU: H810) so that you have four low beams and four high beams, to maximum performance at night. (Click for Wiring Instructions)
Fitment: The buckets behind old sealed beam headlights on most vehicles built between 1950-1980 are extremely shallow, making it nearly impossible to retrofit a modern LED-based headlight without sticking out or modification. Not the case with the RetroBrights, which were purposely designed with an ultra-shallow profile to ensure perfect fitment.
Options: They come standard with a warm-white LED that maintains the classic look. If you prefer the classic style of the housings, but prefer a more modern pure white light output, that is also an option. For those who want a yellow lens (and yellow light output) --you can also opt for the Euro lens conversion kit.
Serviceable: Though the rated lifespan of each LED headlight is over 20,000 hours, the Holley RetroBright is designed to be serviceable. If a light ever goes out, the proprietary LED cartridge can be unbolted and replaced with a new one.
Quality: The heart of the headlight is powered with high quality LEDs from Philips-Lumileds. These aren't cheap emitters to begin with. Your classic car has already withstood the test of time and the UV-coated polycarbonate lens will take another couple decades worth of abuse without fading. You can feel the precision in the heavy-duty die-cast housings that double as a heat-sink. A special PWM LED driver resides inside of the headlight to keep the LED's running at their peak intensity, even during prolonged periods of use.
4x6" Standard: Designed to replace all 4x6" Rectangle headlights, these are cross compatible with other sizes commonly known as H4651, H4652, H4656, H4666, HP6545, HP4651, HP4656, or HP4666. The RetroBright LED Headlights offer full low and high beam functionality. They come standard with H4 3-pin male inputs and should be plug and play on most classic cars / trucks.
Holley RetroBright 4x6 LED Sealed Beam Headlights
Bring modern lighting performance to your classic vehicle with Holley RetroBright 4x6 LED Sealed Beam Headlights. Designed to preserve a vintage appearance while delivering modern LED output, these headlights are the perfect upgrade for classic trucks, muscle cars, and retro builds.
The RetroBright design features LED technology that provides brighter, more consistent illumination with improved beam control compared to traditional sealed-beam halogen headlights. The result is better nighttime visibility without sacrificing the period-correct look enthusiasts value.
Built with sealed, durable housings and engineered for reliability, Holley RetroBright headlights are designed for direct replacement of standard 4x6 sealed beams. With street-legal compliance and easy installation, they offer a simple way to modernize classic lighting.
Why Choose Holley RetroBright 4x6 LED Headlights?
• Direct replacement for 4x6 sealed-beam headlights
• Modern LED performance with vintage styling
• Improved brightness and beam clarity
• Durable, sealed construction
• Street-legal and easy to install
People Also Ask
Q: Do these fit standard 4x6 sealed-beam housings?
A: Yes—they are designed as direct replacements for 4x6 sealed beams.
Q: Are they brighter than halogen sealed beams?
A: Yes—LED technology provides improved brightness and consistency.
Q: Are they legal for street use?
A: Yes—these headlights are designed to meet road-use regulations.