If your car came from the factory with ... Our SEALIGHT Scoparc S1 LED Bulbs are available in H13/9008, HB5/9007, HB2/H4/9003, HB3/9005, HB4/9006, HB3/H11/H9/H8/9005, and HB3/HB4/9005/9006 sizes.

I've witnessed headlights transition from sealed-type units to halogen, HID, and LED, back when car headlights ... correct bulb size since, for instance, you can't force-fit an H4 bulb into ...

It might not make sense initially, but it can be easier to upgrade older vehicles to the best LED headlight bulbs than newer ...