H4 Headlamp Popular Q&A

Q: What is a h4 headlamp?
A: It is a "style" of a light bulb. Click the link below for an example. Read More »

Q: Does the Philips 9003 H4 headlamp work in a 2004 Ford Escape?
A: it will fit but its the wrong bulb, you need a H7 bulb. on the back of your old bulb is a adapter just pull it off and put it on new bulb. Source(s) work on car... Read More »

Q: Bi-xenon H4 HID bulbs in BOTH headlamps?
A: Bringing a thread out of hibernation here. In terms of a bi-xenon H4 setup, there are 2 ways to do this: a) use an H4 kit that places the bulb arc in the Hi pos... Read More »

Q: Hi does any one know if the lenses of H4 bosch lamps are the same...
A: Firstly clarify LHD and RHD. Are you driving in the uk, even if you are driving a LHD car you will want lenses for a RHD car. The trapezoid shape on the lens re... Read More »

H4 Headlamp Helpful Resources

H4, HB2, and 9003 bulbs - Candlepower
In 1971, the H4 bulb was introduced in Europe as the world's first halogen headlamp bulb that could produce both low and high beam from a single bulb. It.

h4 headlamp Related Products

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