H4 refers to a specific type of automotive halogen bulb, commonly used in headlights. It features a dual filament design, allowing it to provide both low and high beam lighting from the same bulb. The H4 bulb typically has a base type of P43t and is known for its bright white light output and effective illumination for driving at night.
h4
H4
It is a "style" of a light bulb. Click the link below for an example.
The H in H4 when thinking about a lamp would mean a halogen headlamp. So when stocks people are looking for specific bulbs for their customers they should know to look in the car head lamp section of the store when asked for a bulb starting with the letter "H".
Change the whole headlamp bulb. Should be a H4.
See H3 Image and H4 Image below in sources and related links.
The 2001 Daewoo Lanos uses H4 halogen bulbs for its headlights.
they are H4
The length of a typical H4 HID xenon bulb used in HID conversion kits is around 7-8 cm (2.75-3.15 inches). However, it's always best to consult the specific manufacturer's specifications for the exact dimensions of the bulb you are using.
Yup they sure do 9003/ h4 fits a 94 civic
H4
The Aygo uses a H4 type of bulb