Take a look at this table for a quick glance at these differences.

The H1 and H7 are both single-beam lights and use a single filament to create a fixed beam. The H1 is used for the high-beam light, whereas the H7 is used for the low-beam light. And this is where the differences lie in the H1 and the H7 bulb. The car’s headlight then has two headlight bulbs on each side of the vehicle.Īs you can guess, each of these beams uses either an H1 or an H7 bulb. Newer cars, however, are using two separate, single-beam bulbs to serve each role.

The same bulb inside a single housing shifts between high and low beam by altering the reflective pattern. Generally, cars have used a dual-beam bulb. The Difference Between H1 and H7 HeadlightsĮvery car has two functions of the main driving headlights. They light up a narrower and shorter range, which is adequate for daily driving. H7 bulbs, on the other hand, turn on when the car is being used in the regular, low-beam setting. H1 bulbs are used to power the brighter, high-beam, headlight that illuminates the surroundings over a long range. Both are installed in the car and switch between each other as needed. This handy guide will tell you about the main differences between, and uses of, the H1 and H7 car headlights, classified in the same group. You know you don’t want to be caught like a deer in the headlights when a police officer hands you a ticket for violating a law!Įspecially if that fine is for using illegal headlights!

H1 halogen bulb