What does car h1 LED headlight mean?

Car h1 LED headlight is the meaning of the bulb model.
Bulb type
The models of xenon lamps are divided into three series according to bulbs: 900 series, H series and D series. (D series is usually lens series)
There is a one-to-one correspondence between the HID model and the halogen bulb, that is, what type of the original halogen bulb, then the same model must be used when modifying the HID. H series: H1, H3, H4, H6, H7, H8, H9, H10, H11, H13, etc .;
90 series: 9004 (HB1), 9005 (HB3), 9006 (HB4), 9007 (HB5), etc .;
D series: D1S, D1C, D1R, D2R, D1C, D2C, D3C, D4C, etc .;
Others: 880, 881
H1, H4, H7, 9005, 9006, 9007 and other models are more commonly used in automotive HID.