What is a H7 Bulb | Benefits-Problems, Features, Where To Use

Headlights or headlamps are a must addition to any vehicle; they are the way to illuminate and help the drivers see what’s in front of them and create a specific beam pattern that is adjusted to focus where it is needed.

And the drivers’ popular choice award goes to…H7 bulb! Well, why? Let’s find out.

H7 stands for halogen lamps and LED lamps, mainly used for automotive purposes.

Because of the mechanism that has been crafted with delicate intricacy and a scheme to produce to brighten up objects the narrower distance.

We’ll look more into this in the next section.

The reason behind the bulbs focusing only on narrow and short distances is the engineering behind it.

Also, keep in mind that these bulbs are not as efficient as LED ones, but as they are ubiquitous and don’t strap you off cash, they are more popular.

Are you interested to know the magic behind this bulb? Well, we are too!

How Does H7 Bulb Work?

Think of it as a short work process.

The headlight has a glass container (the bulb) that’s been filled up with halogen gas, a wire filament to conduct and induce electricity, and a glass cord to insulate and resist the extreme heat produced while the bulb runs.

When the headlights are on, electricity approaches the wire filament; it gets heated up and produces light.

The glass bulb is (obviously) used to increase the brightness amplitude, and the glass filament is there to contain the heat.

The bulb also has no ground wirings, so a basic two-pronged plug.

Three-pronged plugs aren’t allowed for H7 ones because that will change the non-interchangeable fitment feature of the bulb.

However, this is just the halogen version; LEDs don’t rely on the filaments, hence the longevity increases, and the whiteness is also impressive.

H7 Headlight Bulb Fits What Cars

Before you start rushing to the store for H7 bulbs, it’s time for us to have the *headlight talk*.

So, there are headlights that can be differentiated in so many ways.

The primary two types are ones that are used for the more significant part (headlights and taillights, i.e., H7); and those used for the minutiae parts (daytime running lights).

The second differentiating factor can be the prong count (discussed before), followed by filament count (H7 is a single filament one), and lastly, the LED and halogen fight!

The good news is that H7 is available in both of these versions.

Halogens are commonly used, whereas LEDs are longer lasting.

Eventually, it all comes down to one thing, which is the price.

When you decide what type of bulb you want, well, it will be determined by your car.

But some vehicles that allow you to use the H7 bulb features are BMW, Mercedes, Audi.

But these are not the last; you can just ask the manufacturer.

But because they are so popular, your car may avail to have a universal fitment option so that you can fit the bulb easily.

Features of H7 Headlight Bulb

Now, let’s get to the exciting part, shall we?

01. Brightness

This is a feature we all seek when it comes to the safety and convenience of passengers, drivers, and pedestrians.

The average value is 1500 Lumens, which is the basic halogen brightness level.

But if you upgrade to newer technologies like xenon (which is also a halogen) or LED bulbs, you can expect 2300 Lumens as well.

02. Safety

 Since they are so bright and sparkly, these are safe.

But also, the filaments are triggered for passing electricity; the bulb can shut off any time, which can turn out to be a drawback.

So more power is not always more light.

Instead, in this case, you have to be careful that the filaments don’t get to catch fire.

And again, higher wattage bulbs are not road legal!

03. Where/When Used

Tracing back to the previous point, these are for off-road use only.

They produce 50% or so more light compared to ordinary ones.

So, any exterior usage is prohibited for that. (Not E marked)

With the placement strategy, these H7 bulbs work best as headlights.

04. Power Consumption

The average value is 55 watts (Can go up to 90 watts).

And as for the voltage values, it draws 12 volts.

05. Efficiency

This is the point where things get a bit upsetting.

Because it produces so much heat, it eventually interprets the dismissal of energy in the wrong way.

The lifespan, as a mal by-product, gets decreased as well.

But if you cater to customary conditions for the bulbs and the cars, they can last up to 1000 hours.

06. Price

Without sugarcoating things, we will be frank with you.

H7 bulbs are a bit more expensive.

And it all comes down to the energy consumption method, which is a costly process to manufacture.

Then there are also these high digits for the brightness levels and power-so, all of which add up to the more prominent monetary figure.

You have to be ready to pay somewhat $70 to $100 for a set of H7 headlights, and maybe more if you go for the higher-end ones!

What is The Brightest H7 Headlight Bulb?

The list of brands that make H7 bulbs is pretty long, but the one that has won users’ hearts is the Philips Racing Vision GT200.

They are the brightest, having the right color and color temperature.

It also makes the most precise vision for drivers and passers-by in both categories.

Benefits of Using H7 Bulb

The bright yellow light is the first and foremost benefit of having an H7 bulb, as that doesn’t merge with the sparking daytime sunlight.

Here are some other brilliant features that will be a good aid.

01. It is bright but not strong enough to blind the drivers. They also follow along with the optimal wattage limit with off-road day running lights

02. The low beam tech also serves as another guidance in unfavorable weather conditions such as rain or fog and gives a clear vision of objects upfront

03. No matter the price, H7 bulbs are easy to install. And as you install when you switch on, it will be a matter of a few blinks to see them sparkle, contributing to less energy wastage

Last but not least, the H7 bulbs are suitable for a versatile range of car types starting from SUVs to sedans.

Common Problems of Using H7 Bulb

Even though there is much potential for these fantastic bulbs, some minor details can stretch the market demand value.

Here are some common problems that have been faced while using H7 bulbs as headlights.

a) First off, the efficiency was put in front of questions. We must remember that the bulbs generate light through heating filaments, and guess what? Filaments tend to burn out. This is linked with the heating issue of the filament

b) Not only that, but the battery life is also directly affected by this phenomenon, not to mention the short lifespan of its own

c) To add to the agony (?), these bulbs get dimmed and dull over time

Short snags, but altogether enough to put you down, eh?

Is H7 Bulb Better Than Other Types?

Well, they are pretty much all the same (They illuminate things!).

We guess it’s for us to present the data and for you to find out.

But before we judge them, let’s take a quick overview of what bulb means.

The factors that make a difference in their number of filaments (All are single filament except for H4), the power generated, and the type of base/mounting through which they are connected to the bulb sockets.

We’ll be comparing each with H7 as the central reference point based on some fixed factors.

Such as brightness, safety, where/when used, power consumption, efficiency, price, and finally, pros and cons.

The 6 Differences Between H1 vs H7

  1. The first spotted difference is that H1 produces an emission result of a high beam, and H7 does the opposite.
  2. H7 is used for daily off-road uses, whereas the other is for occasional services on dark roads.
  3. H7 has a power of 1350 Lumens on an average rate, but the other has a higher value of 1410 Lumens.
  4. The efficiency is almost the same for both types of bulbs (wattages). But you can rely on the H1 ones to be on the lower side.
  5. H1 bulbs are cheaper than H7 ones.
  6. H1 and H7 have the same type of defaulter features as well. The filament tends to get heated up.

Differences and Similarities Between H4 vs H7

01. H4 is a double filament bulb and a single base plate, but it’s not the same as the H7 one somewhat; the numbers get interchanged.

02. The light output is more outstanding in H7 headlight bulbs because there are some transmission inductions when two lamps get along, which is not the case for H4 bulbs.

03. When the accumulative price is considered, H7 again takes place because we need four of them to make the system work; in contrast, we need only two H4s.

The Basics of Differences Between H7 vs H11

a) Firstly, you should note that H7 bulbs are used as low beam bulbs. Contrarily, the other sort is used as fog lights.

b) H11 bulbs have a long lifespan of a whopping 50000 hours, which is a better value than that of an H7 bulb.

c) H11 has a Lumen credit of 1250, and hence, H7 wins the competition!

Some Recommendation From Us

Here are our top 5 choices among the long list of H7 bulbs out in the market.

We want to point out that the Lumens values given in the chart are for halogen bulbs, but when we talk LED bulbs, we should expect higher and different values.

If you don’t get what we mean, look out for the features below! (These are all LED ones)

01. Fahren

With 360 degrees beaming abilities with the perfect adjustments and the perfect sink for the ultimate heat dissipation, the brand has to offer some cool features to make this one of the popular choices among the users.



Highlighted Features

  • 120 watts total with 20000 Lumens (10000 each)
  • Soothing white color with the right temperature of 6500K, another ensuring factor of the focused beam pattern
  • The turbofan that has been accompanied in the heat sink enjoys a 12000 RPM speed
  • Has an IP rating of IP68


  • Easy installment (Takes only 20 minutes)
  • Bright but doesn’t blind the drivers


  • It doesn’t work very well in cold weather and tends to flicker

02. Auxito

 This brand promises to prove to you the reasons you should be upgrading from halogen to LED.

They also promise a longer lifespan of the lamps and decrease the energy consumption period.

Note that you might need a CANBUS decoder; just ask the manufacturer providing your model.



Highlighted Features

  • It has proved itself to be worthy of traffic safety and unfavorable weather conditions. (60 watts)
  • Aluminum edging tech has been implemented here for a better cooling-off system
  • The CSP chip engineering will leave no room for blind/dark zones


  • 2 times better improvement was noticed than that of regular halogen lamps
  • Fits almost all car models without any need for additional components


  • They tend to get dull over time

03. Aukee

The maker of these bad boys has focused on everything of what it takes to behold a good set of headlamps.

Even intricate details like avoiding radio interference alongside the bigger job like 6000K clear light central-everything has been manufactured with care.



Highlighted Features

  • This is a 50W producing 10000 Lumens each, but don’t worry about the slightly off power entry More considerable power doesn’t always mean a brighter light
  • The react time is 0 seconds, so no time wastage for your daily commute
  • Up to 30000 hours of lifespan is good enough to serve a good deal


  • Even after almost a year of use, customers didn’t face major overheating or melting the bulb filaments. Wonder what the fuss is about
  • Easy to run even when it is a bright sunny day (Doesn’t match outfits with the day!)


  • Some have had objections to the light beam pattern, a slight off-track, and misalignment

04. Hikari VisionPlus

Next up, this brand takes an oath to provide clear visibility and keep you safe while driving alone in the dark!

Not to mention the careful design plan of 32 sink fans lined up for making things cool.



Highlighted Features

  • 30 watts, with 15000 Lumens each, enough to make one of a lifetime more than 500% than the factory ones
  • Night vision is a specialized feature that creates a slightly wider beam pattern for the driver
  • You need only 5 minutes to install the whole system, so a simple “plug and play”


  • The installation will be just a breeze when you take care of the right polaritieseeze. And as soon as you install them, you’ll start enjoying the bright lights


  • Dimming issues seem to be consistent with this brand

05. VoRock R2 COB

There are some essential things to keep in mind while dealing with them.

Keep a bulb holder ready and have some DIY tools nearby as some modifications in the sockets might be needed as well.



Highlighted Features

  • 6500K color temperature, 8000 Lumens on each; drawing 36 watts in total
  • Has an IP rating of IP65
  • Has a lifespan of more than 30000 hours. Also compatible with a broader range of car types, brands, and models


  • The price value is reasonable and works reasonably too
  • ‘The perfect lighting’ as described by most of the users. So definitely a change on the stock ones


  • There were some mishaps with some production batches, so some received a set that frequently burned out

We know some of these features and specs are pretty much all the same, but it’s the slightly changed details you should focus on, and hence you can hope for a successful buy with no over-budgeting.

Related FAQs

Well, well, we are towards the end. Just a snippety of what we think you might be thinking.

01. Will There be Any Problems If I Swap and Upgrade The Bulbs With Higher Wattage?

The short answer is no. You can do the other way around (But who wants that anyway?).

But a sneaky trick to upgrade your car this way can cause serious downgrading instead!

02. Can I Use H7 Bulbs From Any Brand Available?

Higher-end brands are always reliable and recommended, but if you are talking about fitments and stuff, then yes, you can almost fit any brand into any car that has been approved to take in an H7.

03. I Have Bought an Upscale Brand Set of Bulbs, But They Keep Blowing Up; What is Wrong?

Well, it is not just the H7 bulbs, but this problem is pretty much expected with all types of bulbs.

Have you checked your voltage regulator?

04. I Can Get Out of Halogen Bulbs, Which Are The Brightest Ones, Considering That Some H7 Are Considered Off-Road And Not E-Certified?

Ring Xenon150 is by far the most “legal” one, and they promise to generate 150% more light, and most importantly, they are E-certified.

05. Why Do My H7 Lamps Getting Dimmed?

This is a widespread problem among H7 bulbs.

The simple science behind it is that it solely depends on the iteration of the tungsten particles in the filament; as they decay, the lights get gloomy too.

Now we guess the “H7 Class” is over now!

Final Words

Considering all the pros and cons, it is totally up to you whether you want to have a shot at it or not.

But we would suggest that H7 lamps should only be considered by those who drive them and play them casually, not on heavy-duty and not with a short temper!

H7 lamps can be a bit of a splurge, but it will serve you if you live in a place where there is frequently challenging weather, and a cold-weather might be best suited to since these bulbs have over-heating issues.

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