Upgrade your factory halogen headlights with the LED Headlight Bulbs, designed for a quick plug-and-play install and a compact body that closely matches the original halogen bulb layout. From your product images, this version is the H4 fitment, with a body size of 72.5mm x 22.9mm, base width of 47.5mm, and a listed weight of 46.7g per bulb. The packaging and graphics also highlight water resistance, all-in-aluminium construction, anti-freezing performance, and a 1:1 halogen filament position design.

This bulb style is made to preserve the light source position of a standard halogen lamp, which helps maintain a more controlled beam pattern when upgrading from halogen to LED. That “1:1 filament” design is commonly promoted in H4 LED upgrades because it aims to better match the original reflector or housing geometry. Similar H4 LED bulbs from other sellers and brands are also marketed as plug-and-play, aviation aluminium, and high/low beam replacement bulbs.

The product images also promote a high chip LED design, a compact integrated structure, and beam output suited to a wide range of vehicles. Comparable LED products online frequently use aviation-grade aluminium housings for heat dissipation, advertise easy installation, and position themselves as replacements for standard halogen bulbs.

Key Features

• LED headlight bulb pair
• Plug-and-play installation
• Compact integrated design
• 1:1 halogen filament position
• All-in aluminum housing
• Water-resistant construction
• Cold-weather / anti-freezing capable
• Designed for high and low beam H4 applications
• Approx. 72.5mm length
• Approx. 22.9mm body width
• Approx. 47.5mm base width
• Approx. 46.7g weight

SAMPLE BULB (Different types of LED Bulb has different sizes)

Why Choose This LED Upgrade

If you want a cleaner LED upgrade without bulky external drivers, this style is a strong option. The compact body helps with fitment in tighter housings, while the integrated construction reduces installation complexity. H4 LED upgrades are also commonly chosen for their brighter white output, lower power draw than halogen, and longer service life than traditional bulbs. Guidance from LED sellers and installation sources consistently describes these bulbs as a modern replacement for standard halogen H4 sockets with both high and low beam functions in one bulb.

Installation Notes

 As with many aftermarket LED headlight bulbs, fitment can vary by dust cover clearance, housing depth, and polarity. Some LED installation guides note that polarity may matter on LED bulbs, and some vehicles may need extra space or a compatible socket orientation.