GE 22432 - 9003 H4 HB2 - 60/50w 12.8v Headlight Automotive Halogen Bulb Replacement

GE 22432 9003 H4 HB2 - 60/50w 12.8v Headlight Automotive Halogen Bulb Replacement

The H4, HB2, and 9003 are essentially all the same bulb and can be used interchangeably. The 9003 designation is used in the US, while H4 is more common in Europe but shares identical dimensions. Introduced in 1971, the H4 was the first halogen bulb with two filaments to produce both a low and a high beam from a single bulb unit.