RMS3323S130 - 4x6 (Gen2) Small Square Conversion Kit with 15,000 LM H4 LED Bulbs & Harness Adapters

4x6 Gen2 Glass Sealed Beam LED Headlight Conversion Kit – 15,000 LM H4 LED Bulbs

Upgrade your factory sealed beam headlights without sacrificing the original OEM appearance. The RMS Lighting Gen2 4x6 Sealed Beam Conversion Kit is engineered with OE-style glass housings and high-output 15,000-lumen LED bulbs to deliver exceptional nighttime visibility, a crisp beam pattern, and an easy plug-and-play installation.

Designed specifically for classic vehicles equipped with 4x6 sealed beam headlights, this kit provides modern LED performance while maintaining a factory-correct look.

Kit Includes

- (4) 15,000-Lumen H4 LED Bulbs (6500K Cool White)

- (4) Gen2 4x6 Glass Headlight Housings with bulb covers and reflective backing

- (2) Plug-and-Play Harness Adapters (3-prong H4 to factory 2-prong high beam connector)

- 3-Year Warranty on LED Bulbs

Please specify your vehicle's year, make, and model in the order notes to ensure proper fitment.

LED Bulb Specifications

- Output: 15,000 Lumens per bulb

- Power: 65 Watts

- Color Temperature: 6500K Cool White

- Customized CSP3570 LED Chips

- Operating Voltage: 9–32V DC

- 360° Beam Angle

- Built-in CANBUS Driver

- Active Cooling Fan

- IP68 Waterproof Rating

- Operating Temperature: -40°C to +85°C

Why Choose the Gen2 Kit?

The Gen2 housing was redesigned specifically for LED bulbs, producing a cleaner beam pattern with a sharper cutoff for improved nighttime visibility while reducing glare.

The adjustable rotating bulb base allows precise alignment for optimal light output, and the OE-style glass lenses maintain the classic factory appearance.

Unlike many lower-cost plastic housings, these OE-spec glass lenses resist yellowing and maintain excellent clarity for years to come.

Features & Benefits

- True Plug-and-Play installation

- No modification required

- OE-spec glass lenses

- Factory-style appearance

- Improved nighttime visibility

- Clean beam pattern with proper cutoff

- Rotating bulb base for precise beam adjustment

- Long-lasting LED technology

- Built-in CANBUS electronics

- IP68 waterproof construction

- 3-Year LED bulb warranty

Fits These Sealed Beam Replacements

- H4651

- H4653

- H4666

- H6545

Popular Applications

- 1979–1986 Ford Mustang 4-Eye Fox Body (Will not trigger the factory Lamp Out indicator like many competing kits.)

- Full-Size GM Models with Quad Headlights

- GM G-Body

- Chevrolet Caprice & Impala (Box Chevy)

- Chevrolet Camaro

- Pontiac Firebird & Trans Am

- 1973–1987 Chevrolet & GMC Square Body Trucks

- And many other vehicles equipped with 4x6 sealed beam headlights.

Built to Last

Every kit is manufactured with OE-spec glass lenses—not plastic—so they won't yellow or haze over time. Combined with premium LED bulbs and RMS Lighting quality, this kit delivers the performance, reliability, and factory appearance enthusiasts expect.

Have questions about compatibility? Contact us before ordering, and we'll be happy to help ensure you get the correct kit for your vehicle.