How to install H4 or 9003 LED Headlight Bulbs - Tips and Tricks from Headlight Revolution

[@thewcalame506]

Explaining the shield is something that many others have neglected. Thank you so much. This is by far the best explanation that I have viewed.

[@HeadlightRevolution]

Glad it was helpful!

[@mudzryrahim9130]

@@HeadlightRevolution 0

[@CptSlow89]

@@HeadlightRevolution True but on my motorcycle, high beam shields are opposite that in your video and light is great.

[@yuchub7389]

The best tutorial videos here in youtube🔥

[@mikes.4811]

Yes. I installed mine with that shield facing down. Didnt work out very well. LOL Came to youtube to see the proper way and this channel explained it. Thanks much! 👍👍

[@wildscorp]

This video was big time helpful! I watched a lot of videos trying to figure out how to upgrade my 2002 Tundra to led headlights and yours was the only one that solved the mystery on how to incorporate the dust cover by showing how the collar comes off the led bulb. I still had to modify the dust covers some to allow the bulbs to fit right and yet, now the leds work great and still have the protection of the OEM dust cover. Thanks a lot! 👍

[@eeec7]

Should I cut the dust covers a little bit? If so, where?

[@ChrisOnline1]

It was a pain in the ass when I tried installing the led bulbs on my sister's Yaris and trying to figure out the proper alignment. Now I finally understand the proper way to align the bulb. Thanks!

[@tiggertail]

You saved me! I am crying out of joyI found this video brother !

[@905nite]

Thank you. The 9003/H4 bulb for me was the hardest bulb I've ever had to install. Particularly on a 2012 Honda CR-V EX. 🤬

[@PRODVDi]

Nice informative video. Personally would have liked to see some beam pattern comparisons of the different H4 bulbs as I can't find any of your bulb shootouts that feature H4 bulbs and I'm thinking of getting the new GTR Lighting bulbs. I'd like to point out that when I installed LED H4 Bulbs in the past, I found out that the alignment isn't supposed to be perfectly straight 12 o'clock when I referred to the stock halogen which was slightly off by about a notch and this gave me the best beam pattern. This may be vehicle specific but still something to look out for. Keep up the good work guys.

[@brat_paq]

I just learned from this video that the shield is facing up I thought that should be easy, just point it at 12 o clock. Now I read your comment and it's not exactly 12 o clock. Now I think I should focus the original halogen on a wall and trace the pattern on the wall. Then put the led bulb and make sure the pattern are the same as the original halogen.

[@rontanuecoz]

now i know how to identify if my led bulb is correctly installed how does it looks like with the stock halogen light... thanks much... love watching all your videos!!!

[@HeadlightRevolution]

I'm glad we could help out!

[@davidnhowe6628]

Thank you for explaining on the rubber cover had put mine without the cover just got back from putting it on lol

[@lfc214]

the meaning of perfect can be found in this video 👌👌👌

[@HeadlightRevolution]

🤘🤘🤘

[@bitoksTV]

Thanks a lot sir. On your demo, I easily installed my new LED headlights...

[@HeadlightRevolution]

Glad it helped

[@Panda.0038]

This video is 2 years ago but it still helped me thanks

[@bobmyrick3564]

Howdy, Outstanding presentation, you sir have an excellent way to explain these lighting products. Thank you

[@HeadlightRevolution]

Thank you!

[@KANEandLYNCH3]

I’m curious: my dust cover doesn’t have a hole in the center, and is just a cap that closes off the housing. How do you recommend navigating that with an LED bulb’s heat sink and cable? Is it advisable to just not use the dust cap?

[@gelan1212]

Thank you very much, it’s the only clear explanation I’ve ever found.

[@HeadlightRevolution]

Glad it helped!

[@jimdimaano9181]

I'm glad I found this video. Thanks, man!

[@HeadlightRevolution]

Glad it helped!

[@Pm9x6jh]

Awesome, helped me install my bulbs the right way

[@tommyo777]

Thanks! This, and your video about LED types has helped me make an informed purchase and I expect, a smooth installation/alignment.

[@HeadlightRevolution]

Glad we could help!

[@romedelacalzada]

Thank you for this demonstration about h4 sir ...👍

[@HeadlightRevolution]

You are welcome

[@h0sx]

I have chevey cruze 2017 middle east H4 bulb, it works installing LED headlights 🤩🤩🤩🤩 Thank you Chris 💜

[@HeadlightRevolution]

Nice 👍

[@ericbateman5491]

Perfect explanation of the H4. Thank you!

[@HeadlightRevolution]

Glad it was helpful!

[@shanefoote4808]

Should show what to do with the extended cable and plug length on the LED’s...

[@HeadlightRevolution]

Depending on the headlight and the truck, You can either fit it into the headlight with the factory dust cover or zip tie it neatly outside the headlight. -Chris W

[@tjbay13]

yup. im sittin here trying to plug the damn thing together and it doesnt want to fit. so, for starters, that sucks. would like to see it demonstrated.

[@360.Tapestry]

thank you! i needed to know how to navigate that dust cover

[@HeadlightRevolution]

No problem!

[@azsean4529]

I learned something today. I learned that I totally screwed up putting my leds in. Lol

[@HeadlightRevolution]

😅😅

[@toomasbaunis343]

Great job explaining led installation procedures. I've got a 1986 Winnebago motorhome with sealed beam headlights. I purchased new 4x6 Halogen lenses only. I can now fit led bulbs into the lamps, but the sealed beams have a 2 blade and a 3 blade socket. Is there an accessory pigtail available on the aftermarket to complete the connection so I can have led lights? Can i get a led pigtail from a dealer trim off the old bladed sockets and rewire to complete connection?

[@03Lorac]

The best video. Thank you!

[@dhinusivasankaran]

Lovely explained 👌👏🤝

[@HeadlightRevolution]

Thank you 🙂

[@dand3841]

Great video. Thanks for taking the time to make it.

[@HeadlightRevolution]

Thanks for watching!

[@libborr]

Thanks much for help. Before watched this vid I installed them and it dazzles drivers too much. Do you think I should turn around them?

[@HeadlightRevolution]

Yes please make sure to check the adjustment of your headlight.

[@justatiger6268]

Thank you for this great video. However, I would like to know a bit more about the differences between them. Specifically, ones that have fans and those that don't; are the fans going to accumulate dust and break? Will the entire LED bulb then overheat and simply stope working? And conversely, are the fanless designs better in this respect or worse on account of poor head dissipation?

[@HeadlightRevolution]

The fan based bulbs typically are brighter because they can be run harder. We used to see more fan failures when LED bulbs first came out a few years ago, The new ones work a lot better and it’s almost entirely a non issue. I’d personally only run a fan based bulb now for maximum brightness. -Chris W

[@justatiger6268]

@@HeadlightRevolution I feel so stupid for writing this. I've seen your other videos now and i plan on watching all of them because they are very good indeed. Thank you Chris!

[@HeadlightRevolution]

No problem at all, That is why we are here! Let me know if you need help with anything else.

[@AnDroid-cq3sr]

Thanks you so much to solve misery between the lock pin and dust cover .

[@HeadlightRevolution]

Thank you for watching!

[@derekhuber3392]

A video of the Morimoto 2Stroke 4.0 would be nice since it has a square body now.

[@HeadlightRevolution]

Will require custom wiring and 1x Ford PN# 8U2Z-14S411-AAC. See Install Guide for more information.

[@ANU-Presents]

Very good detailed explanation...thank you.

[@HeadlightRevolution]

Glad it was helpful!

[@MrMonkstyle]

Very helpful, thank you a lot!

[@HeadlightRevolution]

Glad you found it helpful! Let us know if you have any other questions.

[@eladioleon160]

Hi I’m getting the led auxito h4 led 9003 to replace the old bulbs in my Chevy bel air 57 are they will fit?

[@JOHNMINKA]

i have fitted a cob led bulb to my motorcycle i get low beam i don't get high beam . i notice if not enough power on battery it switches to low in instructions so i put charger on to a battery doing 13.3 volts STILL NO CHANGE only get low beam could it be a faulty bulb or is it not the same connections as a h4 socket. regards john

[@rio20d]

got some questions, if you look at the recent release of Toyota cars like the corolla and rav 4 , seems like they all uses LED headlights but interestingly enough they use both the typical LED projector headlights which has been around for a while now but also a parabolic led headlamps ( which is not projector base but using reflector in it). What's your view on that? I would like to know, thanks

[@lenroythomas9766]

Love this information very helpful 👏 👌 👍

[@HeadlightRevolution]

Glad it was helpful!

[@GOD1SF1RST]

Very good video. Thank you

[@HeadlightRevolution]

Thank you too!

[@keithdavison7357]

Thanks for the video. I recently bought another type of led that was three sided. So wasn't a issue. I just bought a new set and it had the half moon cup and I had known idea if the cup went up or down. I would of assumed up to keep the low beam pointed towards the ground. But you say it goes under. Thx

[@murry001]

THANK YOU! I was wondering how to get them installed properly :) :) :)

[@HeadlightRevolution]

You're very welcome, thanks for watching!

[@shawngixxer]

Hi, my 2014 Honda CR-V calls for 55/60 watts, if I replace the bulbs with 100/90 watts if my wires get to hot over time?

[@greatmystery11]

Thanks for your efforts, they are appreciated!

[@HeadlightRevolution]

Not a problem, we are always here to help! Let us know if you need anything else!

[@tommygomez6298]

Great video! I have a question... Do all H4 bulbs have both high beam and low beam?

[@moazdaza7275]

Perfect video! so informative and to the point! one question, H4 (7,11 etc) are those numbers different sizes? (like do h4's have a shorter LED base? in a way that the LED would be in the same sweet spot to be focused by the housing just like the original Halogen light? ) or are these numbers for a different power/higher level/quality etc.?

[@HeadlightRevolution]

These are different, the base of the bulb, the plug, the LED placement, etc, will all be different based on the size of the bulb. With the stock halogen bulbs, this number could mean a difference in power as well though. For instance, 9006/9012 are the same minus the top tab on the bulb being a little wider and the 9012 generally uses 10-15w more power. It is common for people to trim the larger tab on the 9012 bulb to fit into a 9006 housing since the 9012 is brighter.

[@moazdaza7275]

thank you so much for explaining, sharing your info/knowledge and for your time! May Allah Bless you and guide you to what is best for you in this life and in the hereafter! ❤

[@wkduff]

Thank you for explaining the shield but I'm trying to figure out where you plug it into. There's no KZbin videos. How to plug these in.

[@HeadlightRevolution]

If you are referring to the dust cover, it just screws into the headlight housing.

[@wkduff]

@@HeadlightRevolution no the cable, I went to Canadian Tire and they said this would work in my car. I cannot find the plug to install it in a 2010 Kia soul.

[@craigk5505]

I installed the SEALIGHT H4/9003 LED Bulbs on my honda element. They look great but when the truck is turned off they still give off a low glow for hours. Not sure if it's power stored on the driver or a low current. Truck starts up fine but still concerned

[@eugenecastro]

This is a great video to watch prior to installing the h4 9003 led lights. I was able to install it properly with your video. The only issue i have after installing my led is that its always ON even when the switch is OFF and the AUTO doesn’t work as well. Basically it’s always ON. Any advice on how to fix it would be much appreciated. Thank you

[@brian_2040]

Eugene, you must be referring to the daytime running lights. There are ways to turn them off. But it's a safety thing, I'd leave them on, it can't be that bad on the bulbs.

[@dann5480]

Great video. I have a question. I got the dust covers on after the LEDs so that the fan assembly and heatsink are inside the rubber dust cover and completely sealed up. Only the wire is protruding which I also sealed with electrical tape. Will it cause issues with overheating? Is it important for the fan to be exposed to outside air? Appreciate your videos a lot. Thanks.

[@HeadlightRevolution]

No, you don't have to worry about overheating! We do recommend using the dust cover and having the fan enclosed in the headlight.

[@dann5480]

@@HeadlightRevolution Thanks!

[@Ben24-7]

I bought some cheap no brand leds H4 bulbs and when switching from low beam to high beam there was hardly any difference, is that normal for all Led bulbs , or is it because I bought cheap knock off's, Thanks for the video

[@elbertkim55555]

This is awesome!

[@HeadlightRevolution]

Thank you for the supportive comment!

[@anm0604a]

this is the best guide

[@astindersinghera766]

Great video, well explained. What led bulb do you recommend for 2004 Mazda Tribute, it uses H4/9003 bulbs. Also would like to have led bulbs that have low and high beams both. I can’t find led bulbs that has both beams. Is that by design? Thanks so much

[@HeadlightRevolution]

I would suggest reaching out to our CS team so we can go over some options with you! 218-755-5200 [e-mail]

[@InBoostWeTrust7MGTE]

i was so hoping to see the light output of this H4 bulb

[@HeadlightRevolution]

Check out our Toyota Tundra bulb shootout video, It uses H4! -Chris W

[@vinoth20294]

Please explain about headlight base. And which one is commonly used in H4 bulb 43t or 45t? What about H7 bulb..?

[@ClarkSaintil]

Good job, verry important

[@javierpenarandach.1756]

Great video! Still, I simply don't get it, why is it so many people and reviews indicate light bulbs to be h4/9003? I mean from what I understand they are different, like h4 cannot replace 9003 or viceversa, am I wrong?

[@HeadlightRevolution]

In the LED world, they can! The connectors are the same, but the bases would be slightly different. With LEDs, you just get a universal base for both applications.

[@DanielLee-qy1yu]

Thanks Bro Really helped

[@HeadlightRevolution]

No problem 👍

[@benson098123]

Could you do a test of 9003 gtr ultra 2 bulbs?

[@HeadlightRevolution]

We have a few videos coming out on those bulbs, I believe one of them is 9003 based. -Chris W

[@RomboutVersluijs]

Why does the lee bulb have such a long cable. Won't that cause issue in wet conditions?

[@richardstamper5630]

I have seen some LED H4 lamps being offered locally but they say it needs an adaptor kit? Looking at your example I can't see any adaptor. The shop tell me that if plugged directly into the old plug then the voltage is too high but it doesn't say anything about that on the packaging. Hope you can help.

[@HeadlightRevolution]

Never heard of that, almost sounds like a gimmick to sell you an extra piece!

[@CptSlow89]

My h4 leds were instaled with up and down shield and it was fine. Now I bought the same set and pattern looks weird and low beam is so bad. I will try to turn the shields to 3 and 9 position.

[@HeadlightRevolution]

Yep!

[@CptSlow89]

@@HeadlightRevolution Tried, they locked somewhere in between 9 and 3 but not exactly 9 and 3.

[@squirrelkiller3589]

Great video, quality content

[@HeadlightRevolution]

Thank you, glad that you liked it!😄

[@HARRUMPH-SAL]

Great points on the shield and bulb positioning. My son's 99 Camry uses 9003 bulbs, which we switched to LEDs. They are "4 side" bulbs. Is there a proper way to identify on the bulb which way they install? Does it matter? Thanks!

[@HeadlightRevolution]

4 sided bulbs will not focus properly, if you're going to run them it doesnt really matter how they face in there.

[@parthap2944]

Please tell me how to Install an LED headlight in Yamaha FZ V2 with upper and lower beam properly working .

[@NewAdventureBlack]

Can I install H4 LED in H13 halogen headlight? What I have to change? The reason I ask this is because I want to use a producer who make only H4 LED not H13 LED. Thanks!

[@erickpalos23]

You mentioned a shield, how about if my new led buld doesn't have it? Should i just place it facing horizontal?

[@HeadlightRevolution]

You should still place that so that the LEDs are facing left and right! It is very rare that there is a housing that needs them aligned in a different position!

[@christiannefarias4923]

How about the weather protector? Do we need to put it back?

[@HeadlightRevolution]

Yes, the dust cover should be reinstalled.

[@johnkolar8466]

I got termitor 9003 led bulbs for my 04 tundra installed them now my high beams don't work however if I put one halogen bulb in and one led bulb my high beams work again it don't matter what side any ideas

[@takeapieandrun]

Converted my motorcycle from H7 to H4.. needed to know which way the shield faces. Thanks

[@HeadlightRevolution]

The shield should face open side up!

[@BulletSpoung]

In the US we have more Toyota RAV4s on the road than any other car or SUV made yet you have no KZbin video on them. We have a 2015 RAV4 and would like to replace the H/L and driving lights with LEDs but I can't find any good info.

[@SS-gc6bp]

Can I change the bulb only on the same fitting/housing on a fiat 500 or do I need a new housing ?

[@HeadlightRevolution]

You can just change the bulb!

[@dipankardas1760]

Have you done any video or comparison of hikari ultra led h4.

[@ryansingh6152]

Thank you for the beam explain

[@HeadlightRevolution]

No problem!

[@marko9138]

Will this work with the headlight leveling dial on a 2020 Toyota Tundra?

[@arkhamvida9479]

My 2011 Kia Soul doe not have a dust cover, but an overall cap that goes over the light mounting. What options do I have to fix this? Do I put the cover on again? Or leave it open? I didn't see anything in your video about this.

[@HeadlightRevolution]

No need toadd one if it doesnt come with one!

[@GENX80.]

What about the heat can a load resistor help with that and how do i know which resistor to get??

[@HeadlightRevolution]

H4 bulbs do not require a load resistor, resistors are for turn signal bulbs! You might be thinking of an H4 PWM module, which we can help make sure you get the proper one needed! [e-mail]

[@klemen2987]

I have honda civic 2002. Had led lights in it and it was only low beam because I couldn’t set high beam right. High beam was lightning the sky instead od road. It’s H4.

[@HeadlightRevolution]

Hope this fixed it for you!

[@socal_gambler]

Are you going to do a H11 video?

[@101shadowstar]

I have a 01 pathfinder so I just wanna know what do I do wit the wires feels like it’s not all gunna fit

[@HeadlightRevolution]

They can usually be tucked into the headlight housing, but each application is different!

[@seangowan7441]

Do you have a video on the H7 headlight bulb?

[@HeadlightRevolution]

Not specifically on H7, sorry!

[@spydernutz]

On a Toyota Fj Cruiser how do you reinstall the rubber boot with LED bulbs. The heat sink can't be covered. Thanks

[@HeadlightRevolution]

I would suggest reaching out to our CS team so we can go over some options with you! We have some extended dust covers available! 218-755-5200 [e-mail]

[@tjbay13]

no mention about the decoders though - why they exist and how to plug them in.

[@HeadlightRevolution]

They plug straight in, we have plenty of videos covering these! 🙂

[@bongwoophet]

would the h4 fit my 2007 honda vtx 1300c? Alla Lighting thinks it may fit. Please advice and thank you per request.

[@HeadlightRevolution]

Hey Robert! We can help, please email us with photos if you can so that we can help you! [e-mail]

[@kokotiong]

Do you have to modify the dust cover to go over the Morimoto on a 2000 Toyota 4Runner? It doesn't seem to fit over the fan?

[@HeadlightRevolution]

You may have to modify that dust cover, and some vehicles just do not work with those LED bulbs. If you are having trouble with that, just shoot us an email and we will be happy to help! [e-mail]

[@emmanuellopez4651]

I recently replaced my headlights and tail lights in a Mitsubishi Outlender 2008 and now the ASC OFF light turned on. Do you think a resistor could fix the problem? Thank you in advance.

[@HeadlightRevolution]

9/10 a resistor or PWM Module is going to fix those issues! Shoot us an email, happy to help - [e-mail]

[@muhdizhar8746]

Thanks for video

[@abdulwahidchangazi]

Please review the high beam offroad (drifter) headlights ... Thanks

[@HeadlightRevolution]

We'll add them to the list!

[@alejandrolucero147]

Can I use the 9003 h4 sylvania for headlights even if it says fog use only in va I am blinded by people's leds

[@HeadlightRevolution]

If your OEM Headlights use a 9003/H4 Bulb type, then yes you can use the Sylvania bulbs.

[@josephcedatoljr.7562]

Could you help with my Opt7 Flux v2? I have a 2009 Tacoma and have them installed as you showed. However, I noticed that there is no seal other than the tip seal. I am constantly getting flashed for having high beams on. My adjustment with my OEM lights is fine. Is a readjustment needed? I will admit they ARE bright. Also, when I put my high beams on, there really doesn’t seem to be any change in the light. Any comments? Thanks.

[@HeadlightRevolution]

You should always readjust the headlights after installing new ones, Especially if you’re getting flashed. It may not seem like they move much, But they do!

[@ironhorsegladiator5034]

The exposed side not covered by the plastic insulation is okay?

[@HeadlightRevolution]

Yep!

[@proakkie942]

Is it recommended to use led bulbs with a reflector?

[@Dontbanhmi]

no

[@jakeconcienne6274]

Thank you!

[@HeadlightRevolution]

Thank you for watching Jake! -Chris W

[@muchkin4757]

Hi there. Would you be able to direct me which Led light is good for Honda Civic LX 2014??? I was told Aukee is good but I don't much which led type. Thanks.

[@HeadlightRevolution]

Here you are! www.headlightrevolution.com/9006-HB4-Ultra-2.0_2

[@muchkin4757]

@@HeadlightRevolution thank you so much

[@muchkin4757]

Do I need two sets of bulbs? One for high and low beams? Watched your video, wondering how long do they last? Also, does it cause flickering or affect the daytime running lights? Living in Canada, are the lights waterproof? They are a bit on the expensive side. Have to say your video are easy to watch and follow. Thank you so much for your help.🙂

[@HeadlightRevolution]

For further assistance please reach out to our customer service team, it would be much faster! (: 218-755-5200 [e-mail]

[@aziaazia540]

I have 2016 Nissan Sentra I try so many LED light it doesn’t fit to the base of the headlight. I used H11 led still doesn’t work what do you recommend think appreciate

[@HeadlightRevolution]

Please reach out to our customer service team so we can get some pictures and match something up for you! 218-755-5200 [e-mail]

[@JoseGadi1991]

Does it have a high beam mode? I put some in when I tested the high beam it doesn't do anything or show on the dashboard

[@HeadlightRevolution]

H4 is a dual filament bulb, meaning there is a low beam and high beam chip.

[@JoseGadi1991]

@HeadlightRevolution how come I don't get an indicator for high beam on the dashboard

[@HeadlightRevolution]

Do you have an older vehicle that has an H4 ground negative switch? Shoot us an email and we can help - [e-mail]

[@vman78vk]

I have a 2006 sentra and bought a Beamtech LEDs H13, when I installed the bulbs and was turning them to the right I was expecting some sort of a snap or a tension of some sort. Nothing, so I just left it like that, and ofcourse when I drove to work, after 25 miles the bulb came out of its housing and just dangled there. Anything I can do to fix this ? Thanks.

[@HeadlightRevolution]

It sounds like that may be an issue with the bulb itself. I'd reach out to who you purchased them from, and see if you can get a replacement.

[@tthoy7338]

Is it absolutely necessary to re-install the OEM rubber boot over the H4 LED because if I do the rubber boot will cover over the cooling fins. The instructions do not say to re-install the OEM rubber boot. Do I really need the rubber boot at all? It will certainly run much cooler without the rubber boot

[@HeadlightRevolution]

You will definitely want to use that OEM Dust cover, that will keep the majority of the dust and debris out of the housing, and will allow for your headlights to last longer! Let us know if you have any other questions, we are here to help!

[@carlosdaudet6821]

Great video! I would like to see the beam pattern using same brand and type of led bulb in both the two headlights in this video. Specially the Honda, comparing halogen beam pattern with led beam pattern

[@HeadlightRevolution]

We will add that to our list of videos!

[@michaelelder5432]

Beam pattern shots for the Morimoto 2 Stroke 2.0 vs the GTR Ultra 2 please.

[@HeadlightRevolution]

We show this in most of our new vehicle specific testing videos that we've done lately. Check them out!

[@michaelelder5432]

@@HeadlightRevolution H4 specifically. I'm not finding anything on the GTR Lighting Ultra 2 in H4, or the Morimoto 2-Stroke LED in H4. Reflector housing beam shots including high and low comparisons for both light would be super useful to me right now. It a lot of money, but I've been considering a retrofit if I can't find something with a usable/desirable output.

[@HeadlightRevolution]

Here is a link for the H4 bulbs! headlightrevolution.com/h4-9003-gtr-lighting-ultra-2/

[@milesberru2801]

Which led is the bright and low on the H4 9003 LED Bulb?

[@HeadlightRevolution]

GTR Ultra 2!