Hella Marine 5.75in Round H1 Halogen Headlight, Set of 2
Hella Marine 5.75in Round H1 Halogen Headlight, Set of 2 — Product description
The Hella Marine 5-3/4 inch round conversion swaps your old sealed beam headlights for a serviceable H1 halogen setup. You get two lamps, a proven Hella reflector, and the freedom to replace a cheap bulb instead of a whole headlight. It's the high-beam pair, no turn signal, a clean drop-in for anything running standard 5.75 inch round lamps.
If you're running old-style sealed beam headlights, you already know the frustration. A filament burns out and you're replacing the entire lamp, glass and all. This Hella Marine 5-3/4 inch round conversion changes that. It drops into the same round bucket your sealed beams sit in now, but instead of a throwaway unit you get a proper reflector housing built around a replaceable H1 halogen bulb. Bulb dies? You swap a cheap, common bulb and you're back in business.
These are the 5.75 inch (5-3/4 inch) round format, the standard small round size fitted to a huge range of vehicles and equipment over the decades. That's the same size you'll find on plenty of older rigs, so sourcing and fitting is rarely a mystery. If your current headlights are that size and round, these are a direct physical swap. The set includes two lamps, so you can do a matched pair in one go.
The H1 bulb is a single-filament type, which is why Hella lists this as a high-beam conversion. In a four-headlight setup these are the inner high-beam pair. In a two-light system they handle the high beam. Single filament means one clean, bright job, throwing light down the road when you flip to brights. There's no integrated turn signal in this lamp, so if your setup relies on the headlight housing for a park or turn function, plan to keep that circuit separate. Most installs already run turn signals off their own lamps, so for the majority of swaps this isn't an issue.
Why go Hella here? The company has spent decades building lighting that holds up. The reflector optics put a usable, even beam where you want it instead of scattering light everywhere. That matters when you're actually depending on your high beams on a dark road or an unlit stretch of water. The standard lens style keeps things simple and clear, with no fussy projector housing to fail. And because the bulb is replaceable, you're not throwing away good optics every time a filament gives out.
Install is straightforward for anyone comfortable with basic wiring. The lamp sits in your existing bucket and retainer ring. Connect the H1 bulb to your high-beam feed and ground, and you're most of the way there. A couple of tips from experience: put a little dielectric grease on the bulb connector to keep corrosion out, and make sure the retainer clips are snug. Vibration is the enemy of any bulb, and a loose clip will shorten bulb life or rattle the beam out of aim. Aim the lamps on a flat wall before you rely on them at night.
A word on bulbs. H1 is one of the most common halogen bulbs out there, which is the whole point of converting. You can source a replacement just about anywhere, and it's smart to keep a spare in the glovebox or the console. If you run in a harsh, salty, or dusty environment, check the connector and lens now and then. Halogen lenses can haze after years of hard UV exposure, so a quick wipe and the occasional inspection keep them clear.
Who's this for? Anyone with 5-3/4 inch round sealed beams who's tired of the all-or-nothing replacement cycle. Owners of older trucks, classic vehicles, RVs, equipment, and boats running this lamp size all land in the same spot: the original sealed beams are dim by modern standards and pricey to replace whole. This conversion fixes both problems. You get the brighter, whiter light of a modern H1 halogen and the long-term savings of a bulb you can actually replace.
Bottom line: if you want to move off fixed sealed beams and onto a serviceable halogen setup without changing your mounting, this Hella Marine 5-3/4 inch round set is a clean, no-drama upgrade. Two lamps, a proven reflector, and the freedom to swap a bulb instead of a whole headlight the next time one goes.
Key Features
- 5.75 inch (5-3/4 inch) round housing, a direct fit for standard round sealed-beam buckets
- Uses the common H1 halogen bulb, so you replace a cheap bulb instead of the whole lamp
- High-beam function from the H1 single filament, built for clean forward throw
- Standard lens style with Hella reflector optics for an even, usable beam
- No integrated turn signal, keeping the lamp focused on forward lighting
- Sold as a matched set of two lamps for a complete pair swap
- Serviceable design, no more tossing good optics when a filament burns out
- Straightforward drop-in upgrade from fixed sealed beams to replaceable halogen
Why Buy from NVN Marine
- Authorized Hella Marine reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Hella Marine 5.75in Round H1 Halogen Headlight Conversion, Set of 2 |
|---|---|
| Brand | Hella Marine |
| Manufacturer Part Number | 002425811 |
| UPC | 760687711520 |
| Lamp Size | 5.75 Inch (5-3/4 Inch) Round |
| Shape | Round |
| Lens Style | Standard |
| Bulb Type | H1 |
| Beam Function | High Beam |
| Turn Signal | Not Included |
| Quantity | Set of 2 |
| Replaces | Sealed Beam Headlights |
| Product Type | Halogen Headlamp Conversion |
Frequently asked questions
What does this Hella conversion replace?
It replaces standard 5-3/4 inch round sealed beam headlights. The lamp drops into the same round bucket and retainer ring your sealed beams use now, so there's no change to your mounting.
What bulb does it use?
The H1 halogen bulb. It's a single-filament type and one of the most common bulbs around, so replacements are easy to find. That's the main advantage over a sealed beam, where a dead filament means a whole new lamp.
Is this a high beam or low beam?
It's a high-beam conversion. The H1 single filament handles the high beam, which is why Hella lists it as a high beam kit. In a four-headlight system these are the inner high-beam pair.
Does it have a turn signal?
No. This lamp has no integrated turn signal or park function, so keep your turn-signal circuit on its own lamps. Most setups already do.
How many lamps come in the set?
Two. You get a matched pair so you can do both sides at once.
Will these fit my vehicle or boat?
If your current headlights are 5-3/4 inch (5.75 inch) round sealed beams, these are a direct physical swap. Measure your existing lamp to confirm the size and round shape before ordering.
Why convert from sealed beam to halogen?
Two reasons. You get brighter, whiter light from a modern H1 halogen, and when a bulb eventually burns out you swap a cheap bulb instead of buying a whole new sealed beam.
Any install tips?
Set the lamp in your existing bucket, connect the H1 bulb to your high-beam feed and ground, and snug the retainer clips. A dab of dielectric grease on the connector keeps corrosion out, and aiming the beams on a flat wall before night driving is worth the few minutes.
What's the part number?
The Hella Marine manufacturer part number is 002425811, UPC 760687711520.
Are these covered by warranty?
Yes. They carry the full Hella Marine manufacturer warranty, and we're an authorized reseller, so any claim runs through us.
