
H7 bulb is a low beam bulb. Here are the specific details about automotive bulbs: 1. Headlight classification: Automotive headlights include high beam, low beam, fog lights and turn signals. 2. Bulb classification: Mainly divided into H and D types. Common models include H1, H3, H4, H7, H11, etc. Position lights mostly use W5W, H9, H10, H11, H12, etc. Rear lights commonly use bulbs of models such as P21W, P21/5W, etc. D stands for xenon lamp, commonly used xenon lamp models include D1S, D2S, D3S, D1R, D2R, etc.


