H7 bulbs - everything you need to know about them

H7 halogen lamps are among the most commonly used for general vehicle lighting. Since their introduction to the market in 1993, they have not lost their popularity. What is their secret and how do they differ from car lamps of other generations? Check what you know about them.

What will you learn from this post?

• How does a halogen lamp work?
• Where are H7 bulbs used?
• What is the difference between the H7 bulb?
• What should you consider when choosing car lamps?

Shortly speaking

Halogen bulbs are the most commonly used type of light bulb in cars today. They last longer and more efficiently than old incandescent bulbs. Among them, one of the most popular is the H7 single-filament lamp, which is characterized by a fairly high luminous efficacy (at the level of 1500 lumens) and a service life of up to 550 hours of operation. In the European Union, the H7 bulb with a nominal power of 55W is allowed for use, but manufacturers for racing are designing models with increased parameters that will meet legal requirements.

How does a halogen lamp work?

The light source in the bulb is hot tungsten filamentplaced in a sealed quartz flask. An electric current flowing through a wire heats it up, creating an electromagnetic wave visible to the human eye. Bubble gas filledwhich is designed to raise the temperature of the filament and thus make the light beam emitted from the lamp brighter and whiter. Where did the name "halogen" come from? From gases from the group of halogens with which these bulbs are filled: iodine or bromine. Therefore, also alphanumeric designation with the letter "H" and the number corresponding to the next generation of the product.

H7 bulbs are designed for

H7 bulbs are designed for main headlights of the car - Low beam or high beam. These are light bulbs one-component, that is, those that can only be used as one type of light at a time, without the possibility of switching to another. To do this, you will need a second set of bulbs. Whether you should use H7 or H4 (dual fiber) in your car, depends on the design of the headlights... Reputable manufacturers offer headlight bulbs with similar parameters in both versions.

H7 Bulb Specifications

To be approved for use on public roads in the European Union, the H7 bulb must be highlighted. rated power 55 W... This means that all H7 bulbs should glow the same with standard intensity. Manufacturers use different tricks to adjust parametersand at the same time, their products can be legally used on public roads. Among them are such tricks as optimization of the thread design or application gas filling with increased pressure.

The standard H7 bulb has a limited life. 330-550 working hours... However, it should be borne in mind that bulbs with higher parameters may have a shorter life due to faster wear of the filament.

Lamp Selection

In the Nocar store you will find lighting from renowned manufacturers such as Phillips, OSRAM General Electric or Tunsgram. Depending on which parameter is most important to you, you can choose your bulbs... Below are some factors that you can follow.

Stronger light

bulbs OSRAM Night Breaker was characterized the beam of light is 40 m longer and brighter than other halogens... This is due to the improved gas formula and filaments. Thus, they provide up to 100% more light, significantly increasing driving safety and comfort. In addition, a special blue coating and silver cover reduce glare from reflected lamp light.

Longer service life

Line Extra life from General Electric guarantees even twice the service life than standard models. In the case of commonly used headlights such as H7 bulbs, this is an extremely important parameter. Remember that driving with a blown bulb even during the day can result in a fine!

Xenon light effect

Now every third car in the world is equipped with Philips lighting. Philips offers a wide range of bulbs, from standard and durable models (Philips Longer Life) to racing-like lamps (Philips Racing Vision).

bulbs Philips White Vision They will perform especially well in the autumn-winter period or during night driving, when visibility is significantly limited. They produce intense white light, analog of xenon, but 100% legal. They provide better visibility without dazzling oncoming drivers. Their nominal lifespan is up to 450 hours, which is not a bad achievement with such intense lighting.

No matter which H7 bulb you choose, remember that effective lighting is one of the most important safety features in a vehicle. The site avtotachki.com presents a wide selection of light bulbs and other car accessories! Come visit us and enjoy a comfortable ride!

Find out more about car lamps:

Which H7 bulbs emit the most light?

Philips H7 lamps - how are they different?

H7 lamps from OSRAM – how to choose the best one?

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