H1 LED KITS
- Merchant Reviews -
H1 LED Kits
H1 is a simple, widely used single-filament bulb with a small tabbed base. You’ll find it doing a lot of different jobs — high beams, projector low beams, fog lights, and auxiliary lighting — across a huge range of vehicles, including many European models. Its compact design makes it a clean, straightforward LED conversion.
One filament, many uses
Because H1 shows up in so many positions, the key is knowing exactly where your vehicle uses it — your low beam, high beam, and fog can each be a different size. The Year/Make/Model finder at the top of the page maps every position for your car and matches the right H1 LED kit.
H1 performs especially well in projector housings, where its single, well-defined light source focuses cleanly. In any housing, proper emitter placement and real cooling are what separate a great result from a cheap one — which is how ours are built. Free shipping over $75, lifetime warranty, 50,000+ reviews since 2004.
Frequently asked questions
What is an H1 bulb used for?
H1 is a versatile single-filament bulb used for high beams, projector low beams, fog lights, and auxiliary lighting across many vehicles, including a lot of European models. Because it appears in several positions, confirm where your vehicle uses it with the finder.
Is H1 a high beam or low beam?
It depends on the vehicle. H1 is used for high beams on many cars, but also for projector low beams and fog lights on others. Your low and high beams may use different sizes, so check each position with the Year/Make/Model finder.
Does an H1 LED work in projector headlights?
Very well. H1's single, compact light source focuses cleanly in a projector for a sharp beam with a defined cutoff. Proper emitter placement and cooling still matter, which is why our kits are built for an accurate pattern and long life.