What is the difference between HB3 and 9005?
1 Answers
HB3 and 9005 are the same model specifications, and sometimes both HB3 and 9005 are labeled together, which is the method of labeling for U.S. standard car lights. Car headlights include high beams, low beams, fog lights, and turn signals, and there are many types of car bulbs, mainly divided into H and D categories, which can be distinguished by the number of lamp pins and tabs. Common models include H1, H3, H4, H7, H11, etc., and different types of bulbs are used for different positions. Other commonly used bulbs for headlights include turn signal bulbs, such as PY21W; position lights are mostly W5W, H9, H10, H11, H12, etc.; rear lights commonly use bulbs such as P21W, P21/5W, etc. D represents xenon lamps, and commonly used xenon lamp models include D1S, D2S, D3S, D1R, D2R, etc. Odd numbers indicate with an igniter, and even numbers without an igniter; 2 indicates the presence of mercury, while 3 and 4 are mercury-free; S is used for lenses, and R is used for reflectors. Methods to distinguish car bulb models: determine whether the headlight is a combined high and low beam, if so, it means the headlight model is H4; if the headlight has separate high and low beams, you can check the manual that came with the car to find the specific model of your headlight. You can also open the hood, remove the headlight protective cover, take out the bulb, and identify the headlight model by the lamp pins and base. If the headlight has 1 lamp pin and a flat rectangular metal base, it is H1; if the headlight has 3 lamp pins, a round metal base, and 3 protruding tabs on the outer edge, it is H4; if the headlight has 2 lamp pins, a round metal base, and 1 protruding tab on the outer edge, it is H7; if the headlight has 2 lamp pins, an elliptical socket with 1 longer protruding tab on the lower edge, it is H11; if the headlight has 2 lamp pins, an elliptical socket with 1 smaller protruding tab on the upper edge, it is HB3 (also known as 9005); if the headlight has 2 lamp pins, an elliptical socket with 2 smaller protruding tabs on the upper edge, it is HB4 (also known as 9006).
