Holley Holley RetroBright Headlight: Euro Yellow (5x7" Rectangle) LFRB110

The Holley RetroBright LED Headlight in Euro Yellow — 5×7" Rectangle (LFRB110) is the upgrade classic car and truck owners have been waiting for. Designed to replace sealed-beam headlights in vehicles that accept the standard 5×7" rectangular format, it delivers the safety and visibility of modern LED technology without sacrificing the period-correct styling that makes your build special. Engineered in the USA by Morimoto — specialists in performance automotive lighting — the RetroBright LFRB110 is a genuine best-of-both-worlds solution for night driving on the boulevard, backroads, or the strip.

Key Features & Benefits

• Euro Yellow Tint, Retro Aesthetic: The distinctive Euro Yellow lens gives your classic ride an authentic vintage motorsport look while still using cutting-edge LED internals — no compromises on style.
• Massively Improved Light Output: The LFRB110 produces 42,000 CD on low beam and 56,000 CD on high beam — nearly three times more output than your original sealed-beam lights — dramatically improving visibility and safety after dark.
• 2,000 lm Low / 3,000 lm High Beam: Confirmed lumen ratings mean you get a real, measurable brightness upgrade over factory halogen sealed beams.
• Well-Distributed Beam Pattern: Engineered for excellent width and long-range reach, with even more range unlocked in high beam mode — so you can see hazards sooner and react faster.
• Polycarbonate Lens: Durable polycarbonate construction stands up to road debris and the elements better than glass sealed beams.
• Cast Aluminum Housing: A premium cast aluminum body handles heat dissipation and contributes to long-term durability — a big step up from plastic-bodied alternatives.
• H4 Connector: Plug-and-play H4 connector compatibility means installation is straightforward on the vast majority of vehicles that originally used H4-wired sealed beam sockets.
• 5,700K Color Temperature (with Yellow Lens): The underlying LED utilizes a 5,700K bulb — which, filtered through the Euro Yellow polycarbonate lens, produces that warm, golden output associated with classic European rally and road cars.
• Patent-Pending Design, USA-Engineered: Developed entirely in the USA by Morimoto, the RetroBright line carries patent-pending status — a reflection of genuine innovation rather than a simple adaptation of off-the-shelf components.
• Drop-In Sealed Beam Replacement: The 5×7" rectangle format matches the sealed beam size used on a wide range of classic American muscle cars, trucks, and imports — no cutting, fabrication, or bracket modification needed in most applications.

Specifications

• Part Number: LFRB110
• Brand: Holley (engineered by Morimoto)
• Size: 5" × 7" Rectangle
• Lens Color: Euro Yellow
• Lens Material: Polycarbonate
• Housing Material: Cast Aluminum
• Color Temperature: 5,700K
• Connector: H4
• Low Beam Output: 2,000 lumens / 42,000 CD
• High Beam Output: 3,000 lumens / 56,000 CD
• Style: Modern White (Euro Yellow lens)

Fitment

The Holley RetroBright LFRB110 is designed to fit any vehicle that uses a standard 5×7" rectangular sealed beam headlight with an H4 wiring connector. This format is extremely common across a wide range of classic American muscle cars, vintage trucks, early Fox Body Mustangs, and various imports from the 1970s through the 1990s. The RetroBright lineup is also available in other sizes — including 5.75" round, 7" round, and 4×6" rectangular — so if your application requires a different format, confirm your vehicle's sealed beam size before ordering. If you're unsure whether the 5×7" rectangle is the right fit for your specific year, make, and model, reach out to the ThreePiece.us team before purchasing.

Why Buy from ThreePiece.us

• Free Shipping: Every order ships free — no minimum, no fine print.
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• Expert Fitment Support: ThreePiece.us has served 10,000+ customers and our team is available to help verify that this headlight is the right choice for your specific build. Reach us at sales@threepiece.us or call 813-535-5801.
• In-Stock and Ready to Ship: No waiting on special-order delays — this item is in stock and ships promptly.

Frequently Asked Questions

Q: Will the LFRB110 work as a direct replacement for my sealed beam headlights?
A: Yes — if your vehicle uses a 5×7" rectangular sealed beam headlight and an H4 wiring connector, the RetroBright LFRB110 is designed as a drop-in replacement. No wiring modifications or adapters are required in most standard H4 applications. If your vehicle uses a different connector, contact our team to confirm compatibility before ordering.

Q: Why does the LFRB110 list a 5,700K bulb if it produces a yellow light?
A: The 5,700K rating refers to the color temperature of the underlying LED light source. The Euro Yellow polycarbonate lens filters that cool white output into the warm golden tone associated with classic Euro-style headlights. This is the same principle behind traditional yellow-tinted driving lights — the result is a distinctive amber-yellow beam, not a cool white one.

Q: How much brighter is this than my original sealed beam headlights?
A: According to Holley, the RetroBright 5×7" rectangle produces 42,000 CD on low beam and 56,000 CD on high beam — which is nearly three times more light output than a conventional original sealed beam headlight of this size.

Q: Does Holley offer the RetroBright in other sizes or colors?
A: Yes. The RetroBright line is available in 5.75" round, 7" round, 4×6" rectangular, and 5×7" rectangular formats. Color temperature options include 3,000K for a classic warm look, as well as the Euro Yellow (LFRB110) variant. If you need a different size or finish, contact ThreePiece.us and we can point you to the right part number.