Auxbeam 4x6 Inch LED Headlights: specs, fit and what to check

The Auxbeam 4x6 is a set of four rectangular LED headlights in the sealed-beam size used on many older cars, trucks and some motorcycles. They replace the standard 4x6 inch headlamps with LED units. Here is what the listing's specs mean and what to confirm before ordering.

What 4x6 sealed-beam fit means

A 4x6 inch rectangular headlamp is a long-established size. Many vehicles with this size use the part numbers H4651, H4652, H4656, H4666 and H6545, which Auxbeam lists as compatible. Vehicles with two-headlamp systems typically use H4656 or H4666 units, while four-headlamp systems often pair low and high beam units. Because the set contains four lamps, it can cover a four-headlamp layout. Auxbeam describes the fit as universal for most vehicles with 4x6 inch headlights, including sedans, light SUVs, trucks, motorcycles and off-road vehicles. Check your own vehicle's lamp type, since fitment depends on the exact setup.

Brightness

Auxbeam rates each lamp at 3,600 lumens on high beam and 2,800 lumens on low beam, which it describes as real 60W output with a projector lens. Lumens measure how much light a source emits, and the lens and housing decide how that light is spread on the road. The brand says the lamps are brighter than similar 4x6 LED and HID headlights. Those are the brand's comparisons.

Build and certification

The listing describes the lamps as DOT and SAE approved, shock-proof and waterproof to IP67. IP67 in general means dust-tight and protected against short immersion. The cover is polycarbonate, which Auxbeam says is harder to scratch than ordinary glass. The brand also says the circuit board is designed to avoid flicker and that the larger heat-dissipation spacing supports a lifespan of up to 50,000 hours, a manufacturer's estimate. Headlight rules differ by region, and installation should follow the manual and local regulations. Aim the lamps after fitting so the beam doesn't dazzle others.

Installation

The package includes four 4x6 inch LED headlights. Replacing sealed-beam units usually means removing the trim ring, unplugging the old lamp and fitting the new one. Check that the connector on your vehicle suits the new lamps, as the listing doesn't mention adapters.

Who it suits

The set suits owners of vehicles with 4x6 inch rectangular lamps who want LED headlights in the same size, and owners of classic or utility vehicles that still use this format.

What to check before you buy

• Lamp layout: confirm whether your vehicle uses two or four 4x6 lamps and which part numbers.
• Connector: check that your harness plug matches the lamps.
• Quantity: this is a set of four, so confirm that it matches what you need.
• Local rules: check regional headlight regulations and aim the beams after fitting.
• Upkeep: keep the lens clean, and follow the manual for any replacement.

The short version

• Four rectangular 4x6 inch LED headlights, model QPAB005938.
• Rated at 3,600 lumens on high beam and 2,800 lumens on low beam.
• Listed as DOT and SAE approved, with IP67 sealing and a polycarbonate cover.
• Compatible with H4651, H4652, H4656, H4666 and H6545 lamp types.
• Check fit, connectors and local regulations first.

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