20 Best Hid Projection Headlights [2024]

Are you looking for the best hid projection headlights? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling hid projection headlights.

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# Preview Product
1 Kaper II L01-0063 90mm, High Beam Projection Headlight Kaper II L01-0063 90mm, High Beam Projection Headlight
2 DOT SAE Black 7'' Round LED Projection Headlight With White Amber DRL Compatible for Jeep Motorcycle... DOT SAE Black 7'' Round LED Projection Headlight With White Amber DRL Compatible for Jeep...
3 SEALIGHT P1 9012/HIR2 LED Bulbs,150W 22000 Lumens 600% Super Bright Cool White Hi/Lo Beam 9012 LED... SEALIGHT P1 9012/HIR2 LED Bulbs,150W 22000 Lumens 600% Super Bright Cool White Hi/Lo Beam 9012...
4 Torchbeam D3S HID Headlight Bulbs, 6000K Diamond White, High/Low Beam, 5 Years Lifespan, Xenon... Torchbeam D3S HID Headlight Bulbs, 6000K Diamond White, High/Low Beam, 5 Years Lifespan, Xenon...
5 New Brightest DOT Approved 80W 5-3/4' 5.75' Round LED Projection Headlight Compatible with... New Brightest DOT Approved 80W 5-3/4" 5.75" Round LED Projection Headlight Compatible with...
6 AILEO H11 LED Headlight Bulb Mini Lens Projector, 90W High Power 16000LM 6000K White Super Bright... AILEO H11 LED Headlight Bulb Mini Lens Projector, 90W High Power 16000LM 6000K White Super Bright...
7 Innovited 55W AC HID bundle with (1 Pair) Slim Ballast and (1 Pair) Xenon bulb 9006 6000K (Diamond... Innovited 55W AC HID bundle with (1 Pair) Slim Ballast and (1 Pair) Xenon bulb 9006 6000K...
8 Cougar Motor H4 LED Bulb, 12000LM Noiseless 9003 6500K Cool White All-in-One Conversion Kit Direct... Cougar Motor H4 LED Bulb, 12000LM Noiseless 9003 6500K Cool White All-in-One Conversion Kit...
9 DMEX D2S - 35W - 6000K Cool White Xenon Headlight HID Bulbs 85122 66240 66040 66240CBI Replacement -... DMEX D2S - 35W - 6000K Cool White Xenon Headlight HID Bulbs 85122 66240 66040 66240CBI Replacement...
10 Sinoparcel D1S Xenon HID Headlights Bulb - 8000K 35W High Low Beam Replacement Bulb - Pack of 2 Sinoparcel D1S Xenon HID Headlights Bulb - 8000K 35W High Low Beam Replacement Bulb - Pack of 2
11 Nilight 2.5' Mini Projector Lens for H1 Headlights Bulb Retrofit, Custom Headlamps Conversion:Chrome... Nilight 2.5" Mini Projector Lens for H1 Headlights Bulb Retrofit, Custom Headlamps...
12 DMEX D3S HID Headlight Bulbs Xenon 6000K Cool White 35W Replacement 66340 42403 42302 Headlamp -... DMEX D3S HID Headlight Bulbs Xenon 6000K Cool White 35W Replacement 66340 42403 42302 Headlamp -...
13 Torchbeam D3S HID Headlights, 400% Brightness HID Bulbs, 6000K Diamond White Xenon Replacement... Torchbeam D3S HID Headlights, 400% Brightness HID Bulbs, 6000K Diamond White Xenon Replacement...
14 Nilight D3S HID Headlight Bulbs, Super Bright D3S HID Bulb 6000K Diamond White High Low Beam HID... Nilight D3S HID Headlight Bulbs, Super Bright D3S HID Bulb 6000K Diamond White High Low Beam HID...
15 Xentec 9005 10000K HID xenon bulb x 1 pair bundle with 2 x 35W Digital Slim Ballast (Ocean Blue,... Xentec 9005 10000K HID xenon bulb x 1 pair bundle with 2 x 35W Digital Slim Ballast (Ocean Blue,...
16 Xentec 9005 6000K HID Xenon Bulb bundle with 55W EP alloy Slim Ballast (Ultra White, also fit... Xentec 9005 6000K HID Xenon Bulb bundle with 55W EP alloy Slim Ballast (Ultra White, also fit...
17 MARSFLUX K1 9005/HB3 LED Bulbs,8000LM High Lumens LED High Beam Conversion Kit, 60W CSP LED... MARSFLUX K1 9005/HB3 LED Bulbs,8000LM High Lumens LED High Beam Conversion Kit, 60W CSP LED...
18 Marsauto D3S HID Bulbs, 6000K Cold White, Xenon Replacement Bulb, 3500 Hours Longevity, Waterproof... Marsauto D3S HID Bulbs, 6000K Cold White, Xenon Replacement Bulb, 3500 Hours Longevity,...
19 Torchbeam D1S D1R Xenon HID Headlight Bulbs, 35W 7600LM Bright 8000K Ice Blue, High Low Beam... Torchbeam D1S D1R Xenon HID Headlight Bulbs, 35W 7600LM Bright 8000K Ice Blue, High Low Beam...
20 Nilight D2S HID Bulbs, D2S 6000K HID Bulb Diamond White High Low Beam Xenon Headlight HID Bulbs for... Nilight D2S HID Bulbs, D2S 6000K HID Bulb Diamond White High Low Beam Xenon Headlight HID Bulbs...
Bestseller No. 1
Kaper II L01-0063 90mm, High Beam Projection Headlight
  • Perfect for head lamp replacement on RV s and for custom applications, fits most 90mm headlight application; autos, trucks, motor cycle and sport...
  • DOT/SAE Compliant
  • Alignment Adjustment Screws Included
  • H9 Lamp and Pigtale Included
  • OEM Approved High Beam
Bestseller No. 2
DOT SAE Black 7'' Round LED Projection Headlight With White Amber DRL Compatible for Jeep Motorcycle...
  • Ultimate Projector Series LED headlight for vehicles with 7 inch sealed beam type headlights. Update the look of your vehicle while improving your...
  • Input Voltage from 10V-30V DC.Wattage 30W/15W/5W ; Simply the best 7inch headlight you can buy for your vehicle!
  • Four operating model:★High Beam (3240 lumens) ★Low Beam ( 1620 lumens) ★DRL White ★Yellow Turn Signal Light
  • Fitment: Any model with 7 inch stock headlight, such as:Heritage Softail, Softail Slim, Softail Deluxe, Fat Boy, Switchback, Road King, Street Glide,...
  • Package included: 1Pcs 50W 7inch Led Headlight ; H4 to H13 Adapter
SaleBestseller No. 3
SEALIGHT P1 9012/HIR2 LED Bulbs,150W 22000 Lumens 600% Super Bright Cool White Hi/Lo Beam 9012 LED...
  • 600% Brightness: Superior LED chips of 150W, 22,000LM per pair, 6000K cool white daylight, Sealight 9012/HIR2 led bulbs provide to 600% more light...
  • Designed for Projector Housing: The ultra-thin design makes the chip 9012 led bulb much closer for a Super-Focused beam, providing uniform light...
  • 10-Min Quick Installation: Almost identical design the original halogen bulbs which makes the direct replacement factory halogen bulb easy plug and...
  • 20 Years Lifespan: The advanced aluminum-alloy heat sink, together with a 15,000RPM turbo fan, keep the 9012 hi lo LED beam bulbs working at optimal...
  • Sealight 9012 LED bulbs can fit 99% vehicles without CANbus adapter: but for some vehicles, computer system may be sensitive and send error message...
SaleBestseller No. 4
Torchbeam D3S HID Headlight Bulbs, 6000K Diamond White, High/Low Beam, 5 Years Lifespan, Xenon...
  • Increased Visibility: Filled with German high-purity xenon gas, 35W brings 300% brightness of 65W halogen bulbs. Even when traveling in the suburbs at...
  • Bright As Diamond: 6000K color temperature design, show about 10% blue under the effect of luminescence factor, which is cleaner and brighter than the...
  • Safer Driving: Equipped with a precise positioning ring, so that the bulb is in the best position in the reflective bowl. the bulb reaches its...
  • Replacement Frequency Lower: IP67 aluminum shell prevents rain and snow from infiltrating cause bulb short circuit, and isolates the heat from the...
  • Plug and Play: 1:1 size specification, without any circuit modification, simple installation steps, even your wife can easily replace it at home. Warm...
Bestseller No. 5
New Brightest DOT Approved 80W 5-3/4" 5.75" Round LED Projection Headlight Compatible with...
  • 80W on power,5000Lm on high beam3000Lm on low beam,definately brightest 5.75 inch led headlight!
  • 100% Germany Original High-performance LED chips LED lamps,provide sharp beam and 50% more brightness than ordinary 5.75 led headlight.
  • Easy Plug and Play installation,usually only take 15 minutes or less.
  • DOT,SAE,E-Mark approved,legal on the road,shockproof, dustproof.More than 80,000 hours lifespan.
  • Fit for bikes with 5.75" round LED headlamp kit,including harley dyna,low rider,wide glide,sportster,super glide,super low,nightster,sreet bob,forty...
Bestseller No. 6
AILEO H11 LED Headlight Bulb Mini Lens Projector, 90W High Power 16000LM 6000K White Super Bright...
  • 【Perfect Beam Mode】Integrated design of mini lens and reflector, H11 LED with mini projection lens, make the spotlight more concentrated, perfect...
  • 【300% brighter than halogen bulbs】H11 LED headlight bulb use top automotive-grade LED chips, each bulb outputs 16000 lumens, 90W, 6000K white...
  • 【Fast Heat Dissipation】H11 H8 H9 LED headlight bulbs are made of aviation aluminum alloy, improve thermal induction heat control through LED...
  • 【Easy to Install】The latest mini H11 projection lens headlight, perfectly fit the original halogen size, directly replace the halogen, plug and...
  • 【Upgrade Driver】 Built-in EMC system to ensure the best temperature protection and headlight performance, anti-radio interference, IP68 waterproof...
Bestseller No. 7
Innovited 55W AC HID bundle with (1 Pair) Slim Ballast and (1 Pair) Xenon bulb 9006 6000K (Diamond...
  • Each bundle contain 2 bulbs, 2 ballast, and accessories.
  • Easy and Simple installation. Usually takes less than 20 minutes! Literally "Plug-and-Play" in most vehicles with no resistors or extra wiring. Some...
  • Waterproof,Dustproof,Shockproof .3X Brighter than Halogen Bulbs. Lasts 5X Longer. 35% Less Power Consumption.
  • 2 YR Warranty. Service Life 5,500 Hours or 229 Days, AC 55w: MAX bright 3,900 Lm light
  • Compatibility: please check existing bulb before placing order, if not sure please visit sylvania bulb reference guide, using Amazon partfinder will...
Bestseller No. 8
Cougar Motor H4 LED Bulb, 12000LM Noiseless 9003 6500K Cool White All-in-One Conversion Kit Direct...
  • True 1:1 Size: Extreme 1:1 design of Cougar Motor new generation plug-in led bulb is comparable to of original bulb, without additional wiring harness...
  • High-brightness Chips: Adopting the new multi-core eutectic technology with 24 high-brightness chips, which can light up to 12000LM brightness. And...
  • Comfortable and Durability: Integrated precision aluminum shell and fanless design. H4 LED lights work comfortable and ultra-quiet without any fan...
  • Perfect Match Beam: The luminous point of the led bulb is surpass to the perfect effect to the halogen bulbs, you can get the perfect focusing cut-off...
  • Intelligent + Intimate: The exquisite lamp body built-in highly integrated EMC and drive, no radio interference. Intelligent Canbus ready can match...
SaleBestseller No. 9
DMEX D2S - 35W - 6000K Cool White Xenon Headlight HID Bulbs 85122 66240 66040 66240CBI Replacement -...
  • 【IMPORTANT】Replacement for stock D2S HID headlights only, DOES NOT FIT if your car has stock Halogen/LED headlight.
  • 100% Quartz Anti-UV Glass, Excellent in Performance. Up to 3800 Lumens - More Brighter than Original Standard HID Bulb.
  • High Quality Xenon Gas and APL pills, Tungsten Metal Electrode.
  • Increase 50m Irradiation Distance, Gain 4.5 Seconds more Brake Reaction Time.
  • Pack of 2 Xenon HID Headlight Bulbs - D2S 35W - OEM Replacement - Original Quality - 24 Months Warranty.
SaleBestseller No. 10
Sinoparcel D1S Xenon HID Headlights Bulb - 8000K 35W High Low Beam Replacement Bulb - Pack of 2
  • 2 year warranty and life time support,2pcs packaged; Replacement part number: 66144 66140 85140 85415 (If there is any problem in the product,please...
  • Enter trim of your vehicle to confirm the fitment; Important: Those HID bulbs are ONLY for replacement of your stock D1S/DS1 bulb, not for Halogen...
  • The light is same as OEM bulb and is like the sun also make the driver more comfortable; Scientific design can reduce the chance of rain leakage and...
  • Produces light up to 3 times than halogen bulb, lumen of HID is up to 3200LM while lumen of halogen lamp is 800LM, and lower watts
  • Lightened by tungsten filament, the lifespan of the bulb is five times than the halogen bulb with only more stable light output
SaleBestseller No. 11
Nilight 2.5" Mini Projector Lens for H1 Headlights Bulb Retrofit, Custom Headlamps Conversion:Chrome...
  • H1 mini projector kits (low/high beams), fit in tight spaces for quad retrofits or fog lamp upgrade
  • Bulb's type: h1, adapter plates' type: H4/H7
  • Sets of installation accessories (lock rings, H7/H4 adapter plates, rubber crush Washers)
  • 2.5-inch clear lens in mint condition
  • Package includes: 2x mini projector lens, 2x sets of installation accessories (lock rings, h7/h4 adapter plates, rubber crush Washers).
SaleBestseller No. 12
DMEX D3S HID Headlight Bulbs Xenon 6000K Cool White 35W Replacement 66340 42403 42302 Headlamp -...
  • 【IMPORTANT】Replacement for stock D3S HID headlights only, DOES NOT FIT if your car has stock Halogen/LED headlight.
  • 100% Quartz Anti-UV Glass, Excellent in Performance. Up to 3800 Lumens - More Brighter than Original Standard HID Bulb.
  • High Quality Xenon Gas and APL pills, Tungsten Metal Electrode.
  • Increase 50m Irradiation Distance, Gain 4.5 Seconds more Brake Reaction Time.
  • Pack of 2 Xenon HID Headlight Bulbs - D3S 35W 6000K - OEM Replacement - Original Quality - 24 Months Warranty.
Bestseller No. 13
Torchbeam D3S HID Headlights, 400% Brightness HID Bulbs, 6000K Diamond White Xenon Replacement...
  • 400% Brightness: The innovative diamond-shaped bulb cavity significantly increases the refractive index of light, 400% brighter than ordinary halogen...
  • Safer Driving: 360-degree luminous tube equipped with S304 metal snap ring for precise positioning, stronger and durable than PPS plastic. Stable...
  • Easy to Install: 1:1 original factory bulb design, plug and play, no circuit modification, you can complete the installation in 5 minutes without...
  • 5-year Lifespan: Upgraded IP68 design, seamless folding and assembly of the base aluminum shell, new visual experience, more effectively isolating the...
  • Bright as Diamond: 6000K diamond white, the vision is clearer than 4300K, more comfortable than 8000K blue light, the color temperature is close to...
SaleBestseller No. 14
Nilight D3S HID Headlight Bulbs, Super Bright D3S HID Bulb 6000K Diamond White High Low Beam HID...
  • Bright and safe: With 6000K for better visibility, d3s hid bulb is much brighter than other bulbs, allowing you to see further and clearer; signs and...
  • Perfect beam pattern: With superior focused beam, the illumination distance for d3s bulb is up to 500 ft, no blinding to oncoming vehicle, no glare...
  • Plug and play: Double check your vehicle headlight type, d3s bulb only compatiable with hid headlights assembly, not halogen type
  • Fitment: Suitable for high beam or low beam, 1:1 same design as factory bulbs, please check your existing hid headlight bulbs before purchase
  • Notice: Please wear cotton gloves so you won't get any oily residue on the xenon headlight which will affect the brightness and cause burn-out problem...
Bestseller No. 15
Xentec 9005 10000K HID xenon bulb x 1 pair bundle with 2 x 35W Digital Slim Ballast (Ocean Blue,...
  • Compatibility: please check existing bulb before placing order, if not sure please visit sylvania bulb reference guide, using Amazon partfinder will...
  • Each bundle contain 2 bulbs, 2 ballast, and accessories
  • Xenon Bulb: 2 xenon bulb fits socket size and color described on the title
  • Installation: pre-assembly maybe required before installation, professional installation recommended
Bestseller No. 16
Xentec 9005 6000K HID Xenon Bulb bundle with 55W EP alloy Slim Ballast (Ultra White, also fit...
  • Each bundle contain 2 bulbs, 2 ballast, and accessories
  • Xenon Bulb: 2 xenon bulb fits socket size and color described on the title
  • Ballast: 55W slim size electronic ballast for xenon bulb
  • Installation: pre-assembly maybe required before installation, professional installation recommended
  • Compatibility: 9005 mainly used for high beam, please check existing bulb before placing order, if not sure please visit sylvania bulb reference...
SaleBestseller No. 17
MARSFLUX K1 9005/HB3 LED Bulbs,8000LM High Lumens LED High Beam Conversion Kit, 60W CSP LED...
  • 💡【300% Brighter than Halogen】MARSFLUX K1 9005 LED headlight bulbs with 12 CSP latest chips each bulb, Our K1 9005 LED Bulbs provide 8000lm,...
  • 💡【Over 5,0000 Hours Lifespan】Super aluminum body heat dissipation, no fear of your continuous use. It is more stable and reliable than fan heat...
  • 💡【Safer Driving】Almost 1:1 design same as halogen, K1 9005 LED Headlight bulb provides almost perfect beam pattern and the lights will not...
  • 💡【Canbus Ready for 98% Vehicles】The intelligent IC driver makes the K1 9005 Headlight LED bulbs work well with 98% vehicles equipped with a...
  • 💡【Factory Outlet】With brand and factory-direct self-distribution, we promise you to get the MARSFLUX K1 9005 Headlight bulb Conversion Kit at a...
SaleBestseller No. 18
Marsauto D3S HID Bulbs, 6000K Cold White, Xenon Replacement Bulb, 3500 Hours Longevity, Waterproof...
  • Replace Only HID Bulbs: Replacement for stock D3S HID headlight bulbs only, NOT ADAPT if your auto has stock Halogen/LED headlight
  • Ways to Check Bulb Size: Amazon filter systems may not be 100% correct or up to date as 85% of cars that use HID bulbs also have halogen versions. If...
  • 350% Brightness: Marsauto 35W D3S HID headlight bulbs are 350% brighter than the light output from halogen bulbs and 200% brighter than standard HID...
  • 3500 Hours Longevity: Marsauto HID bulbs ensure the last 3500 hours lifespan, reducing your bulb replacement frequency. IP67 waterproof design and...
  • Easy to Install: 1:1 factory HID bulb design optimizes compatibility, you take only 5 minutes to complete the whole replacement process, and even your...
Bestseller No. 19
Torchbeam D1S D1R Xenon HID Headlight Bulbs, 35W 7600LM Bright 8000K Ice Blue, High Low Beam...
  • Fit HID Assembly Only: Torchbeam HID bulbs only for replacement of stock D1S headlights. Not for halogen or LED assembly. If you're not sure whether...
  • 7600LM, 3X Brighter: With 7600 lumens and 8000K Ice Blue light per pair bulbs, Torchbeam D1S HID lamps performs 300% brightness than halogen bulbs....
  • Clearer Vision, Safer Driving: D1S HID light gets a wider, farther and clearer driving view for you, helping to avoid road hazards earlier
  • 5 Times Lifespan: Shock-proof aluminum base can effectively reduce the bulb's temperature, extending life of HID light 5X than halogen bulbs
  • Almost 5 Minutes Simple Install : 1:1 factory stock design, D1S bulbs can be easily installed in a few minutes without additional accessories. Same as...
SaleBestseller No. 20
Nilight D2S HID Bulbs, D2S 6000K HID Bulb Diamond White High Low Beam Xenon Headlight HID Bulbs for...
  • Excellent brightness: d2s hid bulbs feature a 6000K Diamond white, and its light output is 150% brighter than other bulbs for brilliant downward...
  • Great longevity: d2s hid headlight bulbs reach the high production standard and perfect final inspection, providing a service life of 3000 hours for...
  • Plug and play: Double check your vehicle headlight type, d2s hid headlight bulb only compatiable with hid headlight assembly, not halogen headlights
  • Efficient power: 40% more mitigation compared to other bulbs, with super focused and bright beam, it produces a high concentration of light
  • Warm Tips: Please don't touch the glass tube of the hid headlight bulbs directly, otherwise it will affect the lifespan and brightness, please use...

Having trouble finding a great hid projection headlights?

This problem is well understood by us because we have gone through the entire hid projection headlights research process ourselves, which is why we have put together a comprehensive list of the best hid projection headlightss available in the market today.

After hours of searching and using all the models on the market, we have found the best hid projection headlights for 2023. See our ranking below!

How Do You Buy The Best Hid Projection Headlights?

Do you get stressed out thinking about shopping for a great hid projection headlights? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching hid projection headlights, which is why we have assembled a comprehensive list of the greatest hid projection headlights available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for hid projection headlights that you consider buying. Your questions might include the following:

  • Is it worth buying an hid projection headlights?
  • What benefits are there with buying an hid projection headlights?
  • What factors deserve consideration when shopping for an effective hid projection headlights?
  • Why is it crucial to invest in any hid projection headlights, much less the best one?
  • Which hid projection headlights are good in the current market?
  • Where can you find information like this about hid projection headlights?

We’re convinced that you likely have far more questions than just these regarding hid projection headlights, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for hid projection headlights, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible hid projection headlights. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an hid projection headlights buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available hid projection headlights currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of hid projection headlights has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an hid projection headlights?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your hid projection headlights.
  5. Customer Ratings: Number ratings grade hid projection headlights objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their hid projection headlights.
  7. Product Quality: You don’t always get what you pay for with an hid projection headlights, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an hid projection headlights is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining hid projection headlights information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding hid projection headlights is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: How to install HID projector?

A: Open the hood of your vehicle and unplug the electrical connector from the back of your halo headlight ballast. Plug the factory electrical plug into the HID kit’s ballast. Turn the halo halogen bulb counterclockwise and pull it out of the headlight assembly. Align the tabs on the HID bulb with the notches cut in the halo headlight housing.

Q: How to install LED bulbs in projector headlights?

A: – Open the hood of the vehicle – Disconnect power socket from the bulb – Put out the rubberized cover that protects the headlight housing from moisture. – Unhook the spring the secures the bulb in the housing – Carefully remove the bulb.

Q: Do LED bulbs work in projector headlights?

A: LED bulbs work well in projector headlights because they emit high brightness that make projector headlights work well. Also, LED bulbs are designed to withstand any outer space weather conditions and are energy power efficient. LED bulbs work perfectly well with the projector headlights features and fixtures that makes most people use it.

Q: What are projector headlights?

A: They cost more than reflector headlights. The headlight assemblies tend to be deeper and take up more space. Improperly retrofitting an older vehicle can be dangerous.