Hella 7-Inch Round H4 Sealed Beam Conversion Headlamp, Set of 2

If your truck, off-road rig, classic car, or tractor still runs the old 7-inch round sealed beam headlights, you already know the drill. One filament burns out and you're buying a whole new sealed unit, and even when they're fresh they throw a dim, yellow puddle of light that hasn't kept up with modern roads. This Hella conversion headlamp fixes both problems at once. It drops into the same 7-inch round bucket, but instead of a throwaway sealed beam it uses a replaceable H4 halogen bulb. Burn one out down the line and you swap a bulb, not the entire lamp.

You get a set of two, so you can do both sides in one go and keep the light output matched left to right. That matters more than people think. A pair of mismatched headlights, one tired sealed beam and one fresh conversion, looks off and aims off. Doing them together is the right call.

The lens is a standard clear optic, and Hella redesigned the way it spreads light. The improved optics push more usable light down the road without cranking up the glare that blinds oncoming drivers. That's the balance that's hard to get right. Plenty of cheap upgrades just make everything brighter, including the light bouncing back into everyone's eyes. This one is built to put the light where you actually need it.

What's it good for? Any vehicle that came from the factory with 7-inch round sealed beams. We're talking classic muscle cars, vintage pickups and SUVs, older off-road rigs, farm tractors, air-cooled classics, and plenty of older RVs and motorhomes. If the headlight you're pulling out is a round 7-inch sealed beam, this is a direct-fit replacement. No cutting the bucket, no fabricating a bracket.

The H4 bulb is the key here. It's the most common halogen headlight bulb on the planet, which means when you need a replacement you can find one at any parts counter, gas station, or online in five minutes. That's a big deal on a weekend project or a road trip miles from home. It also gives you room to run different H4 bulbs down the line if you want to tune your output, though we'd tell you to keep the wattage sensible so you don't cook the housing or overload old wiring.

Speaking of wiring, a word of honest advice. The H4 is a three-pin bulb, high beam, low beam, and ground. Most factory 7-inch sealed beam setups are wired for exactly that, so a lot of installs go plug-and-play. But if you're working on a really old vehicle with tired wiring, this is a great time to add a relay harness. It takes the load off the original headlight switch, gives you the full brightness the bulb is capable of, and it's just good practice on a 40 or 50-year-old harness. We're big believers in doing the wiring right once.

This version comes without an integrated turn signal or position light, so it's a pure headlamp. If your vehicle runs its turn signals and markers on a separate circuit, which most of them do, that's exactly what you want. Clean, simple, one job done well.

Hella has been building lighting for decades and it shows in the fit and finish. The reflector, the lens, the seal around the bulb, it's all put together to hold up to weather, vibration, and years of use. These aren't a flashy novelty. They're a straight, sensible upgrade that makes an old vehicle safer to drive at night, and they'll keep doing it for a long time. If you've been squinting past weak sealed beams on dark back roads, this is the kind of fix you notice the very first night you drive it.