Page updated on: April 29, 2024

H4 lamp test & comparison 2024 - best selections, expert guide

The best H4 light bulbs in comparison: How you can achieve success with expert selection

Comparison of the best H4 bulbs on the market

In our independent analysis we take the best H4 bulbs take a closer look and compare their performance. No matter if you are looking for long-lived, energy efficient or high-quality lamps – we have the right thing for you. In the jungle of LED, halogen and xenon, things can quickly become confusing. We have therefore included plasma lamps and incandescent lamps to create a meaningful ranking. Discover with us Advantages and disadvantages different lamp types and make the best choice for your lighting needs.

Illustration
Best recommendation
H4 lamp Osram NIGHT BREAKER LASER H4, +150%
Price-performance winner
H4 lamp Osram 2x halogen lamp H4 ORIGINAL LINE 12V
H4 bulb Philips RacingVision +150% H4 headlight bulb
H4 lamp Bosch Automotive H4 Plus 120 Gigalight lamps 12 V
H4 lamp XELORD halogen H4 headlight lamp bulb 60/55W
H4 lamp Safego 2Pcs H4 halogen bulb 60W/55W 12V
H4 lamp Gread, 2x H4 headlight halogen lamp
H4 lamp letronix halogen car lamps H4 12V 8500K cold white
H4 lamp Philips 12342XVBW X-Treme Vision Moto H4
H4 lamp Diamond Vision 2x H4 12V 60/55W, xenon look
Model H4 lamp Osram NIGHT BREAKER LASER H4, +150% H4 lamp Osram 2x halogen lamp H4 ORIGINAL LINE 12V H4 bulb Philips RacingVision +150% H4 headlight bulb H4 lamp Bosch Automotive H4 Plus 120 Gigalight lamps 12 V H4 lamp XELORD halogen H4 headlight lamp bulb 60/55W H4 lamp Safego 2Pcs H4 halogen bulb 60W/55W 12V H4 lamp Gread, 2x H4 headlight halogen lamp H4 lamp letronix halogen car lamps H4 12V 8500K cold white H4 lamp Philips 12342XVBW X-Treme Vision Moto H4 H4 lamp Diamond Vision 2x H4 12V 60/55W, xenon look
Details
Brand Osram Osram Philips Bosch-Automotive Xelord Safego Gread Letronix Philips Diamond Vision
Result
The Best Suggestionstest-vergleiche.com1,5Very good!H4 bulb
Price-value for moneytest-vergleiche.com2,0goodH4 bulb
TOP Productstest-vergleiche.com1,6goodH4 bulb
TOP Productstest-vergleiche.com1,7goodH4 bulb
TOP Productstest-vergleiche.com1,8goodH4 bulb
TOP Productstest-vergleiche.com1,9goodH4 bulb
TOP Productstest-vergleiche.com2,1goodH4 bulb
TOP Productstest-vergleiche.com2,2goodH4 bulb
TOP Productstest-vergleiche.com2,3goodH4 bulb
TOP Productstest-vergleiche.com2,4goodH4 bulb
number and price 2 lamps €9,44 each 2 lamps €3,39 each 2 lamps €6,84 each 2 lamps €8,20 each 2 lamps €7,00 each 2 lamps €5,00 each 2 lamps €7,48 each 2 lamps €6,50 each 1 lamp €11,00 each 2 lamps €5,98 each
tension 12 V 12 V 12 V 12 V 12 V 12 V 12 V 11,5 - 15,8 V 12 V 12 V
Light color Neutral white4.050 K Warm White3.200K Neutral white3.500 K Neutral white3.450 K k. A. k. A. Daylight white 8.500 K Daylight white 8.500 K k. A. Daylight white 8.500 K
Xenon optics
Benefits
  • Xenon optics for improved visibility
  • Double housing for increased durability
  • easy installation
  • energy efficient
  • Practical double pack for comprehensive use
  • user-friendly
  • cost efficient
  • high compatibility
  • Xenon optics for clear lighting
  • Double pack for double benefit
  • maintenance
  • universally applicable
  • Xenon optics offer brilliant light quality
  • Double pack for added value
  • durable
  • environmentally friendly
  • E-mark guarantees safety
  • practical double pack for comfort
  • Robust design
  • energy saving
  • Xenon optics for excellent light output
  • Double pack for more efficiency
  • Easy to handle
  • versatile
  • Daylight-like light for natural illumination
  • E-mark
  • doppelpack
  • Xenon optics
  • high durability
  • Low energy consumption
  • Natural light thanks to lighting similar to daylight
  • E-mark for safety
  • doppelpack
  • Xenon optics
  • easy to handle
  • stylish design
  • E-approval mark for tested quality
  • long lifetime
  • easy construction
  • versatile applications
  • Daylight-like light for optimal visibility
  • Double pack for added value
  • Xenon optics
  • hard-wearing
  • easy maintenance
Price approx. 16,36 EUR approx. 8,84 EUR approx. 26,32 EUR approx. 11,76 EUR approx. 11,89 EUR Check price approx. 16,95 EUR approx. 15,82 EUR approx. 27,75 EUR Check price
to offer to offer to offer to offer to offer to offer to offer to offer to offer to offer to offer
Hello, I'm Marie, the creative soul behind the inspiring articles at Test-Vergleiche.com. My heart beats for a sustainable lifestyle, especially for the concept of zero waste, which runs like a green thread through my work. I take my readers into the world of vegetarian and vegan cuisine and help them discover hidden travel treasures off the beaten path. As a digital marketing expert, I shed light on the fleeting trends of social media. Yoga and meditation are not only my oases of peace, but also a constant source of inspiration for my texts. My interest in interior design and harmonious interior design, my love for ethnic melodies and exotic world instruments also flow into my articles. Self-development and the journey of self-discovery shape my perspective, as well as my dedication to craft and upcycling, which emphasizes the beauty of reuse. Last but not least, my enthusiasm for children's literature and education is a central part of my writing work. At Test-Vergleiche.com I share all these facets of my passions to inspire you and grow together. Come and discover the diversity of life with me!

The comprehensive H4 lamp test & comparison: What you should know before buying
From test winners to insider tips: your complete guide for the optimal H4 lamp

At a glance
  • H4 bulbs are a special type of bulb used primarily in vehicle headlights. They are characterized by their double-helical design, which combines both the high and low beams in a single bulb.
  • An outstanding feature of the H4 lamps is their high light output and reliability. They ensure optimal illumination of the road and thus make a significant contribution to driving safety, especially in the dark or in bad weather.
  • Due to their widespread use in a variety of vehicle models, H4 lamps occupy a prominent position in the industry. Their universality and high performance make them an indispensable component in automotive lighting.
H4 bulb

Bestseller H4 lamp: Your affordable purchase recommendation for bright streets

As a passionate driver, I know how crucial good lighting on the road is for safety, especially at night or in bad weather. I have therefore looked intensively into the market for H4 headlight bulbs for cars. In today's article I'll explore the reasons for the popularity of the H4 lamp, also known as Car lamp H4 or H4 pear, to the bottom. This Halogen lamp H4 is thanks to their extensive compatibility and the impressive H4 light a common choice among drivers. Regardless of whether in one H4 12V 60/55W version or as a more powerful one Cars Lamp H4, the H4 light bulb provides a reliable light source. Come with me and find out what goes on behind the scenes H4 bulbs-Bestseller - we separate marketing from reality and look at what really counts.

Purchase overview: Your guide for H4 lamps

  • H4-Lamps increase driving safety and provide clearer visibility.
  • The technology behind these lamps is constantly evolving, but still offers proven solutions.
  • brands like Philips and Osram stand for quality, innovation and reliability.
  • Choosing the right H4 bulb depends on individual needs and vehicle type.
  • H4 bulbs come in different technology variants, including halogen, LED and xenon.
  • Ratings and customer reviews are an important guide for purchasing.
  • Properties such as brightness, light beam and color of light are crucial factors.

Amazon's powerful H4 lamp: Bright lighting for maximum safety on the road.

OSRAM NIGHT BREAKER LASER H4, +150% more brightness, halogen headlight lamp, 64193NL-HCB, 12V...
  • NIGHT BREAKER LASER: Powerful H4 halogen headlight lamps from OSRAM in the practical duo box
  • Up to 150% brighter light for your car thanks to an innovative laser stripping technology
  • Up to 150 m long light cone for better visibility and 20% whiter light for...

The history of car lamps and the revolution caused by the H4 lamp

When I delved into the world of automotive lighting, I came across a fascinating development story, particularly highlighted by the Philips H4 lamp was coined. This Evolution has not only significantly improved safety on our roads, but also turned night into day.

Philips' origins in lighting technology

H4 bulb

Versatile application: The H4 lamp can be used in a variety of vehicles and headlight systems.

Philips, a name now associated with advanced lighting around the world, traced its roots back to 1891. With her deep understanding and passion for innovative technology Philips enriched lighting technology during an era that laid the foundation for modern vehicle headlights. The Philips H4 lamp is just one highlight in a long series of lighting inventions.

Introduction of the first halogen headlight lamp H1 and the further development of the H4 lamp

The starting point of this revolutionary Travel was the introduction of the H1 lamp, the first Halogen headlight bulb, which set a new standard for automotive lighting. But Philips' pioneering work did not stand still. The H4 lamp with its innovative double filament surpassed its predecessor models and ushered in a new era in vehicle lighting. The progress in the H4 lamp history marked a turning point that still determines the quality of our car journeys in the dark today.

  • Invention of the first halogen lamp for automobiles (H1) by Philips
  • Further development and improvement of lamp technology
  • Introduction of the H4 lamp with double filament
  • Revolutionary improvement in visibility for drivers

The relevance of the H4 lamp and in particular the Philips H4 lamp in the history of automotive lighting cannot be overstated. As an integral part of lighting technology, it has made nighttime a safe place for millions of drivers worldwide.

Philips H4 lamps: innovation and reliability on the roads

As a pioneer in automotive lighting Philips Lighting has had a lasting impact on the way we equip our vehicles. With decades of experience and a relentless pursuit of innovation, Philips H4 automotive bulbs represent a pinnacle of automotive lighting that leaves nothing to be desired in terms of both quality and safety.

The importance of Philips Lighting for the automotive market

Philips Lighting stands for high-quality lighting solutions that go far beyond the standard. With its wide range of H4 lamps, the company continuously adapts to modern vehicle safety requirements and ensures complete illumination of the road, which significantly improves night driving.

The impact of good headlight bulbs on safety

Proper lighting is fundamental to safety on the roads. The Philips H4 lamp is specially designed to guarantee better visibility in a wide range of weather conditions. With Philips headlight bulbs you feel safe because you know that the road lighting is optimized and other road users can be recognized in good time. Wear like this H4 lamps for vehicles crucial to H4 lamp safety and reduce the risk of accidents.

Get the high-quality H4 lamp from Amazon: Experience a new dimension in vehicle lighting.

2x OSRAM halogen lamp H4 ORIGINAL LINE 12V 60/55W P43t 64193-01B
  • OSRAM halogen lamp H4 ORIGINAL LINE (2 pieces)
  • If you are not sure whether the item on offer is suitable for your vehicle,...

Quality features and variants of H4 lamps

In the H4 lamp test It is noticeable that not every lamp is the same. Criteria such as luminosity, energy efficiency and service life are crucial. When choosing the right H4 bulb, I navigate through a sea of ​​options, including first-class ones H4 halogen lamps to innovative H4 led Lamps and powerful H4 xenon Lighting solutions.

What makes an H4 lamp special and what advantages does it offer?

The classical H4 lamp is more than just lighting and offers significant benefits, such as increased driving safety and better visibility at night. The smooth transition from high beam to low beam makes them comfortable to use. The varied ones H4 lamps white fit seamlessly into modern automotive design and ensure optimized road lighting that goes beyond standard lighting.

The differences between halogen, xenon and LED H4 lamps

H4 halogen is known for its durability and adaptability in various vehicle models. They are widely used as a reliable and cost-effective choice. Stand on the other side H4 xenon-Lamps that impress with their intense light emission wider spectrum of the road enlighten. H4 LED lamps, the latest update in automotive lighting, offer even longer lifespan and improved energy efficiency, making them a forward-thinking option that moves with the times.

  • Longevity and widespread use of H4 halogen
  • High brightness of H4 xenon
  • Energy efficiency and modern technology H4 LED lamps

Amazon's reliable H4 lamp: Bright visibility and long life for a safe ride.

Philips RacingVision +150% H4 headlight bulb 12342RVS2, double set, twin box
  • The street legal rally lamp is the perfect choice for passionate riders
  • With up to 150% more brightness, it is probably the strongest approved halogen headlight lamp
  • Ultimate performance and uncompromising vision for a sporty yet controlled driving experience

The Osram Night Breaker 200 – The bestseller among H4 lamps

As an enthusiastic driver, I have them Osram H4 lamp, especially that one H4 night breaker, subjected to a thorough test. This impressive Osram Night Breaker 200 halogen lamp has proven to be a top choice for anyone who values ​​superior visibility while driving. I am convinced of the performance of this lamp, which not only significantly improves safety but also comfort when driving at night.

In my experience this is illuminating H4 night breaker the road with a breathtaking clarity. With 200% more brightness than standard halogen lamps, the road is optimally illuminated at all times.

  • Overwhelming 200% more brightness compared to standard models
  • A pair of  extensive beam of light of up to 150 meters, which significantly increases road safety
  • 20% whiter light, which ensures freedom from fatigue during long journeys
  • High customer satisfaction with average 4,5 stars Amazon

This product far exceeded my expectations and remains an essential part of my kit. It is impressive to see how the use of the Osram Night Breaker 200 halogen lamp has a positive effect on driving safety. Driving such a bestseller gives me the confidence that I have the best possible view at all times.

What to look for when choosing an H4 headlight bulb

When looking for the optimal H4 headlight bulb, it is crucial to pay attention to certain quality features. The H4 lamp brightness as well as the H4 lamp high beam Range are two essential factors that contribute significantly to the safety of your nighttime car journeys. Sufficient brightness ensures clear visibility, while extensive light spread is responsible for illuminating the road and its surroundings over a long distance.

The importance of the brightness and range of headlight bulbs

When driving in poor lighting conditions, high light intensity and long-range illumination are essential. This can happen especially in bad weather or dark country roads H4 lamp brightness mean the difference between safe travel and danger. It also plays H4 lamp high beam-Range plays an important role in detecting obstacles from a distance and being able to react accordingly.

Amazon reviews to help you decide on your purchase

A helpful resource when making your selection is undoubtedly the H4 lamp reviews on Amazon. Based on the experiences of other users, you can not only assess satisfaction with the brightness and range of the lamps, but also assess their reliability and service life. Browse through customer reviews to get a feel for the most proven models on the market and therefore make an informed purchasing decision.

Discover the premium lighting experience with the H4 lamp from Amazon: Clear vision day and night.

Bosch H4 Plus 120 Gigalight bulbs - 12V 60/55W P43t - 2 pieces
  • Up to 120% more brightness compared to standard halogen lamps
  • Longer light beam thanks to optimized filament size
  • Intense white light thanks to the special blue coating and a unique gas mixture...

Installing an H4 lamp: Simple and user-friendly

We all know how important good lighting is for safety when driving. That's why it's so important to have your... Change H4 lamp without having to rely on professional help. The H4 lamp installation is a process that can usually be easily carried out by anyone as long as a few steps are followed.

How to change your H4 lamp in just a few steps

H4 bulb

Easy replacement: The H4 lamp can be quickly and easily replaced with the old lamp.

The change of one H4 lamp does not require any complex tools and can usually be completed in just a few steps. After you have selected the right lamp, the first step is to carefully remove the old lamp and replace it with the new one. Always follow the instructions provided by your vehicle manufacturer H4 lamp handling to be carried out correctly.

Tips for dealing with a new H4 headlight bulb

To ensure the best possible performance of your new H4 lamp, it must be installed cleanly significant. Be careful not to touch the glass bulb of the lamp with your bare hands, as grease residue can significantly shorten its lifespan. Instead, use a clean cloth or gloves for installation. After inserting the lamp, check that it is tight and secure to ensure proper lighting and avoid vibration damage.

  • Select the correct H4 bulb for your vehicle model.
  • Follow the vehicle and lamp manufacturer's instructions.
  • No direct skin contact with the glass bulb of the lamp.
  • Check the function of the lamp after installation.

H4 lamp 100w and its special features

The H4 lamp 100w is considered a high-performance alternative for drivers looking to improve their vehicle lighting. However, this strong brightness not only brings advantages, but also brings with it certain considerations, particularly when it comes to traffic regulations and vehicle safety.

The possibilities and limitations of a 100w H4 lamp

Although one H4 high performance headlight bulb Although it promises an impressive light output and thus improved street illumination, in practice it often reaches its limits. The additional wattage increases heat generation, which can damage not only the headlight but also the lamp itself. In addition, lighting that is too intense can dazzle oncoming drivers and thus affect road safety.

Legal aspects and safety of high-performance headlight bulbs

When using one H4 lamp 100w The legal framework must always be kept in mind. Only lighting that complies with the regulations and is approved accordingly is permitted in road traffic. Different countries have different regulations for H4 lamps legal aspects. In Germany, for example, lighting must always have the appropriate ECE marking in order to be considered permissible.

  • Make sure that one H4 lamp 100w is approved for your vehicle.
  • Consider heat generation and potential overloading of the headlight.
  • Make sure the installation is non-glaring and does not endanger other road users.
  • Prefer tested products with appropriate certification.

What is an H4 lamp?

Before we get to the use and functionality of an H4 lamp, we would like to briefly explain what kind of lamp it actually is. In short, the H4 bulb is a halogen bulb that is generally used in the headlight. It doesn't matter whether it is a Cars or a motorcycle, because it can easily be used in both vehicles. The designation H4 is basically just an abbreviation for hardness level 4, which means that the hardness level is firm to very firm.

Basically, an H4 lamp is a Bilux lamp, which is a combination of incandescent filament and halogen technology. Inside there are two glow wires located in a glass bulb. While one wire is responsible for the high beam function, the second wire acts as a low beam, meaning that switching between the two lights is possible and possible at any time.

What are the differences between an H4 and an H7 lamp?

Many people ask themselves what the difference is between an H4 and an H7 lamp. This question is easy to answer because there are two completely different bulbs for headlights. You can find out what the exact differences are in the following H4 lamps Guides.

  • H4 bulb
    The advantage over all other headlight lamps is that it is possible to switch between low beam and high beam at any time without any problems. This is not least because there are two filaments inside the H4 lamp for car headlights. There is also a special pin assignment that has three pins. The disadvantage of the H4 lamp compared to the H7 lamp is the light output, which is essentially slightly lower.
  • H7 bulb
    In contrast to the H4 lamp, the H7 lamp is one of the headlight lamps that impresses with improved road lighting and extremely high light output. Thanks to the simple base, these lamps can be easily and light install and can also be used in a modern vehicle.

What should you pay attention to when buying H4 lamps?

If you decide to buy an H4 lamp, you should definitely keep a few points in mind. This not only includes the light color and brightness, but of course also the service life and range. Below we would like to briefly discuss the individual purchase criteria in detail.

  • The range
    You have only chosen the right H4 lamp if there is enough light at the respective points. The ranges stated by the manufacturers are a legal standard, which are given in percent. Unfortunately, it is not possible to create an exact value for every vehicle as there are always differences in the height and depth of the headlights.
  • The brightness
    A healthy average is very advantageous here, because the lighting should be neither too bright nor too dark. The appropriate permissibility is between 1402 and 1809 lumens and may deviate from this by a maximum of 15 percent. A higher value is not permitted as there is a risk of blinding other road users.
  • The light color
    In our H4 lamp comparison we have already discussed the three different light colors, i.e. warm white, neutral white and daylight white light. Which light you choose at the end of the day is at your own discretion and you can therefore decide for yourself.
  • The lifespan
    Unfortunately, brightness is very closely linked to lifespan. Je rather The more the H4 lamp shines, the higher the filling gas pressure is and the thinner the filaments are. This in turn often contributes to significantly reducing the operating time. When buying H4 lamps, you should therefore make sure that you choose an average value in the brightness range in order to achieve a long service life if possible.
  • The set
    It is often significantly cheaper if you choose an H4 lamp headlight set, so you always have a reserve. Many manufacturers, for example an H4 lamp from Osram or an H4 lamp from Philips, offer you suitable offers that are definitely worth comparing.

Is there an H4 lamp test from Stiftung Warentest?

Stiftung Warentest has not yet carried out an H4 lamp test. However, numerous H4 lamp comparisons on the Internet offer you a lot of information about luminous efficacy, general performance, brightness and of course lifespan. It is often about the quality of these lamps, because cheap H4 lamps often do not always offer the visibility and brightness that is required for optimal visibility.

H4 bulb advantages / disadvantages

Benefits

  • High compatibility between plug and lamp
  • Allows both high beam and low beam
  • Improved illumination
  • Easy exchange
  • For cars and Motorrad suitable

Disadvantages

  • Limitation when adjusting the lighting functions

H4 lamps: specialist retailers vs. Internet

Whether in car accessories, in retail or in a well-stocked one DIY & Tools, H4 lamps are now available in stationary stores at any time. There is also competent specialist advice if you wish, especially if you have very little experience with modern headlight bulbs.

If you don't necessarily want to look for H4 lamps in brick-and-mortar stores, you can certainly also use the Internet. Numerous online shops offer you the opportunity to carry out a price comparison for H4 lamps and compare the properties, such as brightness. The following manufacturers are also available to you online to disposal:

Osram
Philips
Xelord
Bosch
Gread

Amazon's innovative H4 lamp: Trust in quality and reliability for optimal vehicle lighting.

Sale
Halogen H4 headlight bulb 60/55W 12V car low beam high beam bulbs with approval...
  • Practical and beautiful H4 halogen lamp - stable performance and energy saving (H4 12V 60W/55W)...
  • Improve driving comfort - Bright white 3500K. ideal for use on the road. Use...
  • 100% fit original H4 halogen socket - plug-in for immediate use. It is very easy to...

Discover the best-selling H4 lamps on Amazon

As an experienced driver, I know how important good lighting is. That's why I'm always looking for high-quality H4 lamps that not only improve my safety on the roads, but are also attractively priced. Amazon has proven to be a reliable platform where I always find excellent offers. The H4 lamps special offers invite you to discover high-quality products and save money.

Top deals and special offers on the online marketplace

Who after a H4 lamp motorcycle or looking for your car, you will find what you are looking for on Amazon. The online marketplace offers a wide selection of H4 lamps that have been recognized as bestsellers. These products are often part of special promotions, which makes it the ideal time for me, my H4 bulbs to bring it up to date. The deals and discounts make it possible to purchase top quality at an affordable price.

The importance of customer reviews when purchasing online

I make it a rule to study customer reviews carefully before making my purchase decision. The H4 lamp Amazon Reviews give me valuable insights into other users' experiences with the brightness, lifespan and quality of H4 bulbs. These honest reviews not only serve as guidance, but also strengthen my confidence in the purchased products. This is how I ensure that I only choose the best for my vehicle.

FAQ

What are the advantages of an H4 lamp over other headlight bulbs?

H4 lamps offer high luminous efficacy, are inexpensive and have a double filament for long-distance and Low beam in a lamp, making it a versatile light source.

Can any H4 bulb be used in my vehicle?

No, it is important that the H4 pear meets the technical requirements specified for your vehicle, such as the correct wattage and the appropriate socket type.

What is the difference between an H4 halogen lamp and an H4 LED lamp?

H4 halogen lamps use traditional filament technology with halogen gas, while H4 LED lamps generate light using semiconductor technology, which results in higher efficiency, longer lifespan and usually brighter light.

Is an H4 lamp 100w safer and brighter than a standard H4 lamp?

An H4 lamp 100w may provide brighter light than a standard bulb, but it must meet regulatory requirements and may cause heat and other problems in some vehicle systems.

Are H4 xenon lamps better than H4 halogen lamps?

“Better” is subjective; H4 xenonLamps generally provide greater light output and a longer lifespan, but they tend to be more expensive and may require more complex installation.

Can I change an H4 lamp myself or should I go to a workshop?

In many cases it is possible to have one H4 lamp to change yourself. The exact procedure can be found in your vehicle manual and depends on the vehicle model.

What do I have to consider when buying an H4 lamp?

Pay attention to the compatibility with your vehicle type, the wattage, the light color (e.g H4 lamp white), the technology (halogen, LED, xenon) and whether the lamp is approved for road traffic.

How relevant are product reviews for H4 lamps on Amazon?

Customer reviews can be very informative as they reflect real experiences with the brightness, lifespan and quality of H4 lamps and can therefore make the purchase decision easier.

Can H4 lamps also be used sensibly during the day?

Yes, many drivers also use H4 lamps during the day to increase the visibility of their vehicle and thereby increase road safety.

What does “H4 lamp for vehicles” mean exactly?

The expression “H4 lamp for automobiles” means the lamp specially developed for use in motor vehicles and fits according to the requirements of car headlights.

 

The best H4 bulbs in the test & comparison:
Choose your test winner from our top recommendations.

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