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HB4 9006 Halogen Headlight Bulbs | 9006 Headlight Bulb | HB4 Halogen Bulb Pair

HB4 9006 Halogen Headlight Bulbs (2 Pack)

€41.99 €49.99 Save €8
  • Sold As A Pair
  • HB4 (9006) Fitting
  • 5000K Light Colour
  • 12V 51W Rating

Price: €41.99 €49.99

  • Delivery time: up to 7 working days by tracked courier, after dispatch within 2 working days
  • Free delivery across Ireland on orders €100+, otherwise a flat €25
  • Pay by card or PayPal, handled by the payment provider
  • 15 days to change your mind, plus a repair, replacement or refund if it arrives faulty
Product specifications
FittingHB4 / 9006
Light SourceHalogen
Pack Quantity2 bulbs
Voltage12 volts
Wattage51 watts
Colour Temperature5000 Kelvin
Shipping & returns

Tracked delivery anywhere in Ireland. It is free on orders of €100 or more, and a flat €25 below that. Allow up to 7 working days in transit after dispatch within 2 working days.

This shop's own returns policy gives you 15 days from purchase to change your mind, on every product it sells. Send it back in its original packaging with proof of purchase and we refund the price you paid for the goods, processed within 24 to 48 hours of the return arriving. You cover the cost of returning it unless the item is faulty.

If it arrives faulty, damaged or not as described, we put it right at no cost to you, return postage included, and your rights under Irish consumer law, including the Consumer Rights Act 2022 are unaffected.

Shipping details · Refunds and returns

Sold As A PairTwo bulbs in the pack so you can replace both sides and keep the output matched.
HB4 (9006) FittingMade for the HB4 fitting, which is also listed as 9006 on many bulbs and manuals.
5000K Light ColourA clean white tone rather than the yellow look of older halogen bulbs.
12V 51W RatingStandard 12 volt vehicle wiring with a 51 watt halogen rating.

Swap a tired pair of HB4 9006 halogen headlight bulbs for a matched set and get your light output looking even again.

A two-bulb pack with the HB4 (9006) fitting, rated 12 volts and 51 watts, with a 5000K light colour for a clean white tone.

This pack contains two halogen headlight bulbs with the HB4 fitting, which is also written as 9006 on many bulbs, boxes and owner manuals.

Each bulb is rated at 12 volts and 51 watts, the usual arrangement for a 12 volt vehicle electrical system.

The light colour is 5000K, which reads as a clean white rather than the warmer yellow tone people associate with older halogen bulbs.

Buying a pair means both sides are changed at once, so the beam colour and brightness stay even from one headlight to the other.

These bulbs only replace an HB4 bulb, so check the fitting in your owner manual or read the marking on the bulb you are taking out before you order.

Headlight bulbs do not usually fail all at once. They dim slowly over months, and because the change is gradual, most drivers only notice when one side finally goes out and the difference between the two beams becomes obvious. That is the point where a pair of fresh HB4 9006 halogen headlight bulbs makes sense. This pack holds two bulbs, so both sides get the same new filament, the same age and the same light colour.

The fitting here is HB4. You will also see it written as 9006, and the two names refer to the same bulb shape. The base has a distinctive angled tab arrangement that stops it from going into a housing built for a different bulb. That is useful, because it means a quick look at the old bulb, or a quick read of the owner manual, will tell you whether this pack is the right one. If the old bulb says anything other than HB4 or 9006, this is not the bulb you want.

Electrically these are straightforward. They are rated 12 volts and 51 watts, which suits a standard 12 volt vehicle system. The light colour is quoted at 5000 Kelvin, so the beam looks white rather than the amber-leaning tone of much older halogen bulbs. Colour temperature is a description of tone, not of output, and it is worth keeping those two ideas separate when you compare bulbs.

Fitting a pair is a job most people can do on the driveway with no special tools, though some cars make access harder than others. The rules are simple. Let the old bulbs cool first, because headlight bulbs get very hot in use. Hold the new bulb by its base or collar and keep your fingers off the glass. Seat it properly, clip or twist it home, then test both sides before you close everything up.

We list this product by fitting type only. We do not claim it fits any named vehicle, and we do not claim an approval mark for it. If you need a bulb carrying a particular marking, check what is printed on the bulb you are removing and contact us before you place the order so we can tell you what this pack does and does not state.

Not sure yet? That is fine.

You can change your mind. This shop's own returns policy gives you 15 days from purchase to send it back in its original packaging with proof of purchase, and we refund the price you paid for the goods.

If it turns up faulty, damaged or not as described, that is on us. We pay the return postage and you can have a repair, a replacement or your money back, and your rights under Irish consumer law, including the Consumer Rights Act 2022 are unaffected. Read the full detail on our refunds and returns page, or ask us anything before you order.

Frequently Asked Questions

What exactly is in the pack?

Two halogen headlight bulbs with the HB4 fitting. They are sold as a pair so you can change both sides of the car at the same time. Nothing else is included, so no tools, clips or connectors come with them.

Is HB4 the same thing as 9006?

Yes. HB4 and 9006 are two names for the same bulb fitting, and you will see both used on packaging, in manuals and on the bulbs themselves. If your old bulb is marked either way, this pack matches that fitting.

How do I know if my car takes an HB4 bulb?

The quickest check is to pull the old bulb and read the marking stamped on its base or collar. The owner manual will also list the bulb types for main beam, dipped beam and fog lights. Do not go by the look of the bulb alone, because several fittings look similar at a glance.

Will these fit my car?

We list this product by fitting type only, so we can confirm it is an HB4 (9006) bulb and nothing more. We cannot say it fits a particular make or model. Confirm the fitting in your owner manual or on the bulb you are removing before ordering.

Is it approved for road use?

We do not claim an approval mark for this bulb, because we hold no approval document for it. If you need a bulb with a specific approval marking, check what is printed on the base of your old bulb and send us a message before you order.

What does 5000K mean?

Kelvin describes the colour of the light, not how much light there is. At 5000K the beam looks white rather than the warmer, more yellow tone of older halogen bulbs. A higher Kelvin number shifts towards blue, a lower one towards yellow.

What voltage and wattage are these bulbs?

Each bulb is rated at 12 volts and 51 watts. That is the standard arrangement for a 12 volt vehicle electrical system. If your vehicle runs on 24 volts, this is not the right bulb.

Why should I replace both bulbs together?

Bulbs that have been in service for the same length of time age at a similar rate, so when one goes the other is usually not far behind. Fitting a matched pair also keeps the colour and output even across both headlights. A mismatched pair is noticeable to you and to other drivers.

Can I fit just one and keep the old one on the other side?

You can, and it will work, but the two sides will probably look different. An old bulb that has dimmed over time tends to read warmer and weaker next to a fresh one. Most people prefer to fit the pair.

Do I need any tools to fit them?

Often none at all, since many headlight bulbs are held by a clip or a twist collar you can work by hand. Some vehicles need a screwdriver or the removal of a cover or air intake to reach the back of the headlight. Access varies a lot between cars, so check yours before you start.

Why can I not touch the glass?

Skin leaves a thin film of oil on the glass. When the bulb heats up, that spot heats unevenly and can shorten the bulb's life. Hold the bulb by the metal base or the plastic collar instead.

What if I accidentally touch the glass?

Wipe the glass gently with a lint-free cloth and a little methylated spirit, then let it dry completely before fitting. Do not use a greasy rag or a household cleaner that leaves a residue. It is a quick fix and worth doing properly.

Do these bulbs get hot?

Yes, halogen headlight bulbs get very hot in use. Switch the lights off and allow time for them to cool before you touch them or remove them. This is the single most common cause of a burnt fingertip during a bulb change.

Can I use these in fog lights?

If the fog light housing takes an HB4 or 9006 bulb, the fitting matches. Many vehicles do use this fitting for fog lights. Check the marking on the bulb currently in the fog light housing to be sure.

Are these halogen or LED?

These are halogen bulbs with a filament inside a small quartz capsule. They are not LED bulbs and they are not HID. If you are specifically after an LED, this is not the product for you.

Will these be brighter than my old bulbs?

We do not quote a brightness figure for this bulb, so we cannot make a comparison. What we can say is that old bulbs dim over time, so a new bulb usually looks cleaner than the tired one it replaces. Colour temperature of 5000K also changes how the light reads to the eye.

How long will they last?

Bulb life depends on how often the lights are used, vibration, moisture in the housing and whether the glass was handled cleanly during fitting. Keeping fingers off the glass is the one thing within your control.

Do the bulbs need any adjustment after fitting?

Swapping a bulb for one with the same fitting should not change your headlight aim, because the bulb sits in the same position in the reflector. If your beams were already pointing too high or too low, fitting new bulbs will not fix that. Aim is set at the headlight unit, not the bulb.

What is the best 9006 halogen bulb pair to buy for an everyday car?

Match the fitting first, then decide on the light colour you prefer. A pair like this one covers the common case of an HB4 fitting with a white 5000K tone. Buying two at once is almost always the better call than buying one.

Can I fit a higher wattage bulb instead?

These are rated at 51 watts, which suits a standard 12 volt circuit. Going above the wattage your vehicle is designed for puts extra load on the wiring and the headlight housing. Stick with what the vehicle specifies.

Do they work with a vehicle that has bulb-out warning lights?

Halogen bulbs of the correct rating generally behave the same way the original halogen bulbs did on the circuit, so a warning light should not appear just because the bulb is new. If a warning stays on after fitting, recheck that the bulb is seated and the connector is fully pushed home. Contact us if you are unsure before ordering.

How do I store a spare bulb?

Leave it in its packaging until you need it, so the glass stays clean and the base stays undamaged. Keep it somewhere dry and away from loose tools rolling around a boot. A glovebox or a small parts box in the garage both work fine.

Can I clean the headlight lens at the same time?

Yes, and it is a good moment to do it. A hazy or yellowed lens scatters light no matter how new the bulb is. Clean the outside of the lens with an automotive cleaner and dry it before you refit any covers.

What should I check if the new bulb does not light?

Check the connector is fully pushed onto the bulb base and that the bulb is twisted or clipped fully home. After that, check the relevant fuse. If both sides fail at once, the cause is usually a fuse or a relay rather than the bulbs.

Is this a sealed beam unit or just the bulb?

This is the bulb only. It fits into your existing headlight housing. No housing, lens, wiring or connector is included.

What colour do they look from outside the car?

At 5000K the light reads white to the eye. Next to an older halogen bulb it will look cooler and cleaner. It is not a blue light, and it is not the deep yellow of an older standard bulb.

How long will delivery take?

We dispatch within 2 working days. Delivery then takes up to 7 working days by tracked courier, anywhere in Ireland. It is free on orders of €100 or more and a flat €25 below that, shown in your cart before you pay. You get a tracking number by email once the parcel is dispatched.

Can I return them if I ordered the wrong fitting?

Yes, our standard returns process applies to unused items in their original packaging. The easiest way to avoid this is to read the marking on your old bulb before ordering. If you are unsure, message us with what the old bulb says and we will tell you whether HB4 or 9006 matches.

Is there a warranty?

No separate warranty is sold. Irish and EU consumer law applies in full, and faulty items are put right. Contact us with your order number and a photo and we will sort it out.

Can I return it if it is not right for me?

Yes. You have 15 days from purchase to change your mind under our refunds and returns policy. Contact us first, keep the original packaging and leave the item unused until you are sure it suits.

HB4 9006 Halogen Headlight Bulbs: A Practical Buyer's Guide

6 min read Online Auto Company

The problem with headlight bulbs is that they fade quietly

Very few headlight bulbs die in a dramatic way. What usually happens is slower than that. The filament ages, the glass darkens a little, and the light that reaches the road twenty metres ahead gets weaker month by month. Because your eyes adjust along with it, you often do not notice until one side gives up completely. Then you pull onto a dark road, see one strong beam and one weak one, and realise how much output you had lost without noticing.

That is the point most people go looking for a replacement. And it is also why a pair matters. If one bulb has reached the end of its working life, the other one has been running the exact same hours in the exact same conditions. Replacing both keeps the two headlights looking the same and saves you doing the job twice in a few months.

This pack holds two HB4 9006 halogen headlight bulbs, rated at 12 volts and 51 watts, with a quoted light colour of 5000 Kelvin.

What HB4 and 9006 actually mean

HB4 and 9006 are two names for the same bulb fitting. You will see one written on the box, the other stamped on the base of a bulb, and occasionally both together. There is no difference between them. The naming just reflects two different standards that ended up describing the same part.

The fitting is the part that matters most when you buy. A bulb base has a particular shape, tab layout and connector so that it only goes into a housing built for it. That is deliberate. It stops someone fitting the wrong bulb and ending up with a beam pointing at the hedgerows instead of the road.

So the single most useful thing you can do before ordering is read the marking on the bulb already in your car. Pull it out, turn it over, and look for HB4 or 9006 printed on the base or the collar. If the marking says something else, this is not the bulb for you. The owner manual is the other place to check, and it will usually list the fitting for dipped beam, main beam and fog lights separately.

We list this product by fitting type only. We do not say it suits a particular make or model, and we do not claim an approval marking for it. If you need a bulb that carries a specific marking, check what is on your old bulb and ask us first.

Colour temperature, and what it does not tell you

The 5000K figure describes the colour of the light. Lower numbers look yellow, higher numbers look blue, and the middle of the range reads as white. At 5000K the beam has a clean white tone, noticeably cooler than the amber look a lot of people associate with older halogen bulbs.

What colour temperature does not tell you is how much light the bulb produces. Those are separate measurements, and a very high Kelvin number does not mean more light. Sometimes it means less usable light on the road, because very blue beams can scatter more in rain and fog. Around the 4000K to 5000K area tends to be a comfortable compromise for most drivers, white enough to look modern but not so blue that the road surface goes flat.

Who this pack suits

This is a sensible buy if your car takes an HB4 or 9006 bulb and one of them has failed, dimmed, or started flickering. It is also a reasonable buy if you simply want both sides refreshed because the beams have gone tired and uneven. Some owners keep a spare pair in the boot, which is not a bad habit for anyone who drives a lot at night or covers long rural routes.

It is not the right pack if your car uses a different fitting. It is also not what you want if you are after LED or HID. These are halogen bulbs with a filament, and they work the way halogen bulbs have always worked.

Vehicles differ in how easy the job is. On some cars you reach behind the headlight, twist the collar and the bulb is out in under a minute. On others you need to remove a cover, shift a washer bottle, or go in from under the wheel arch. Have a look at the back of your headlight before you start so you know what you are dealing with.

Fitting them without ruining them

There are only a handful of rules, but they matter.

Let everything cool. Headlight bulbs get very hot in use, and a bulb you switched off two minutes ago will still burn you. Give it time.

Keep your fingers off the glass. Hold the new bulb by its metal base or plastic collar. Skin leaves an oily film behind, and when the bulb heats up, that patch heats unevenly. If you do touch the glass, wipe it with a lint-free cloth and a little methylated spirit, then let it dry fully before fitting.

Seat the bulb properly. It should drop into place with no forcing, then clip or twist to lock. If it feels like it needs pressure, stop and check the orientation rather than pushing harder.

Test before you reassemble. Switch the lights on, walk round the front of the car, and check both sides. It is a lot less annoying to find a loose connector now than after you have put the cover and the air intake back.

While you have the bonnet open, it is worth looking at the lens itself. A hazy or yellowed headlight lens scatters light no matter how fresh the bulb behind it is. A clean lens is free performance.

Looking after them

Once they are in, halogen bulbs do not ask for much. Keep the headlight housing sealed, because moisture inside the unit is hard on bulbs and worse for reflectors. If you notice condensation building up behind the lens, deal with that rather than just replacing bulbs more often.

Spares want to stay in their packaging until you need them, somewhere dry and away from tools that can knock the glass. A small box in the garage or a corner of the boot is fine.

No service life is stated for this bulb, so we will not quote hours. What affects bulb life in practice is how often the lights run, how much vibration the car sees, whether water gets into the housing, and whether anyone handled the glass with bare fingers during fitting. Only that last one is entirely in your hands.

The short version

This is a two-bulb pack with the HB4 fitting, which is the same thing as 9006. Each bulb is rated at 12 volts and 51 watts, and the light colour is quoted at 5000K, so the beam reads white rather than yellow.

Before ordering, confirm the fitting. Read the marking on the bulb you are removing, or check the owner manual. We sell by fitting type only, we do not claim a vehicle match, and we do not claim an approval marking for this bulb. If an approval marking matters for your situation, check your existing bulb and ask us before you buy.

When you fit them, let the old ones cool, keep your fingers off the glass, and change both sides at once. That last point is the one most people skip and most people regret.

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Not sure if your car takes HB4?

Read the marking on the bulb you are removing, send us what it says, and we will tell you whether this pack matches.

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Page summary

The HB4 9006 Halogen Headlight Bulbs (2 Pack) product is a pack of two halogen headlight bulbs with the HB4 fitting, which is also known as 9006. Each bulb is rated at 12 volts and 51 watts, and the quoted light colour is 5000 Kelvin, giving a white rather than yellow tone. The pack contains 2 bulbs so both headlights can be replaced together and remain matched. The bulbs replace an HB4 bulb only, and buyers should confirm the fitting in the vehicle owner manual or by reading the marking on the existing bulb.