Partsam 4x6 LED Headlights 4x6-inch Rectangular Sealed-Beam Pair — 45W Hi/Lo, Waterproof Upgrade

These sealed-beam LED headlamps replace traditional halogen or HID sealed units without major wiring changes on many trucks, vans, and classic cars. Built as a sealed, waterproof unit with a concentrated LED array, they deliver clearer road illumination and lower electrical draw compared with old sealed-beam halogens. They suit vehicles that accept H4651, H4652, H4656, H4666, H6545 interchange numbers and come as a pair for straightforward swap-in installation.

Will these fit my older truck or sealed-beam vehicle?

Compatibility is broad: the lamps copy the outer dimensions and pin layout used by many 4x6 sealed-beam sockets. They are suitable for a wide range of heavy-duty and classic models that originally used 4x6 rectangular units.

• Interchange numbers: H4651, H4652, H4656, H4666, H6545.
• Common applications: long-haul trucks, older pickups, and many vintage cars that accept 4x6 sealed beams.
• May require pin re-arrangement or an adapter on some sockets (adapter not included).

How do these LEDs perform compared with halogen sealed beams?

These 45W LED sealed beams use multiple high-intensity LED chips arranged for a usable beam pattern that improves perceived brightness and reduces heat output. Expect crisper white light, better long-range visibility, and longer lamp life versus legacy halogens.

• Rated output: 45W total with clustered LED emitters for cut-off and spread.
• Cooler operation and lower power draw than equivalent halogen sealed beams.
• Sealed, waterproof construction prevents moisture and debris entry.

Is installation difficult and will I need extra parts?

Most replacements are simple: remove the factory sealed beam and plug the new unit into the existing H4-style or three-prong socket. In some vehicles you may need to shift the plug pins or use a wiring adapter to match low/high-beam circuits.

• Plug type: three-prong/three-phase connector for Hi/Lo operation.
• Pin rearrangement: sometimes required; adapters sold separately if needed.
• Package includes two 4x6 LED headlamps; no mounting hardware typically required.

What durability and weather protection do these sealed beams offer?

Each unit is fully sealed and rated for exposure to road conditions, so they withstand moisture, dust, and vibration common in heavy-duty and classic vehicle use. The robust housing and lens reduce the risk of failure from ingress.

• Fully sealed housing prevents water and dirt penetration.
• Rugged construction tolerates vibration in trucks and off-road use.
• LED array design disperses heat and extends service life compared to filaments.

Who is this for? These Partsam 4x6 LED sealed-beam headlamps are aimed at owners of vehicles that accept rectangular 4x6 sealed beams—particularly operators of heavy-duty trucks, classic cars, and older pickups who want a direct-fit upgrade to a brighter, longer-lasting LED solution. If you need a pair of plug-and-play 45W Hi/Lo sealed beams that reduce power draw while improving on-road illumination, this kit is a practical replacement. Note: check socket pin layout before ordering if your vehicle uses nonstandard connector arrangements; an adapter or minor pin changes may be necessary for full Hi/Lo function.