LED Headlight Conversion Review using an H4 LED Headlight Projector

LED headlight conversion review after fitting an H4 LED headlight PROJECTOR to a Citroen C1 headlight. Easy DIY plug n play LED headlights just by changing your headlight bulb. Road legal.

These H4 projector retrofit kit first came to market about 4 years ago, but have been substantially improved since, mainly the LEDs themselves (led by OEMs) but also manufacturing techniques.

H4 LED headlight projector Z6 model tested:
H7 LED headlight projector

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0:00 LED headlight conversion review
0:22 Are LED headlight conversion legal?
0:47 How to fit H4 LED projector
2:00 How does H4 LED projector work
2:22 H4 LED headlight vs halogen
2:55 How to adjust H4 LED projector
3:51 Halogen vs LED projector headlights | on a dark road

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Thank you

[rolfathan]

THANK YOU for showing how to adjust it. Too many people put these in and point them as high as they can, then also leave their high beams on and blind everyone with it. They need to adjust that screw and turn off the high beams.

[PlanetNr]

I've bought LED H4 to my wifes Fiat Panda, I've installed them and they point to the little birds in the sky. I'm going to sell them, I just bought these with the projector, hope they fit and finally I will have a good improvement in lightning.

[Transphoenixbiker]

This is how youre supposed to review and compare headlight bulbs !! ❤

[IJm]

I had these in my car a few years back, mot guy said they'd fail, but they do have a nice beam so I enjoyed them

[moazdaza]

Absolutely a GREAT!! (AND i do mean GREAT) review!

[friarbishme]

The new advice states that old-style halogen units should not be converted to HID or LED bulbs, unless they meet the ECE standard 128 and ECE standard 148, its more to do with using them with the reflectors in the headlight being specific for halogen. With these Projector lights it contains the LED sits inside a metal bowl which reflects/projects it;

[TheJeres]

Thank you for this video. I couldnt find any english ones

[garrynutter]

Good find there Paul. Thanks for sharing.

[ezeh]

Hi would these work on any h4 housing cuz i have a 2002 nze corrola im wondering if it would fit plz respond

[EvzenKovar-ip]

In the U.S. LED bulbs are in a strange grey area with regard to legality.

They’re not technically illegal because the DOT rule hasn’t yet been written(and may never be if the population can figure out how to properly aim their headlights).

The head optics guy at Morimoto is on the DOT board and as long as all other bulb manufacturers keep mimicking his designs that part of the equation should be ok. They may decline to ever write a rule.

Just need to get people to buy only blade bulbs, clock them correctly inside the headlight assemblies and then correctly aim them.

Walk around a parking lot sometime and look at how people have their led bulbs clocked. Many have them wrong. Makes me think most are aimed wrong too. LEDs are not as forgiving to oncoming traffic as halogen bulbs.

But these lights are a Godsend for old eyes.

[Christopher]

Is this still road legal? I believe the rules has changed since you made this video. They've addressed the "grey area"

[SSwizzyMusic]

Most places it’s illegal to put led/hid in stock halogen housing BUT it’s rarely enforced and inspection stations will 99% pass you unless it’s not aimed correctly and even then most of the time they do it for you

[jyphatone]

The links for the bulbs now say unavailable as this was 2 years ago. Is there any chance you could show me where to get the headlight bulbs from now? Thanks so much in advance

[troy]

In some US states, it is illegal to put HID bulbs in non-projector housings, but based upon experience on the road; those laws must not be not enforced at all. I'm almost thankful that many have been convinced that LEDs are brighter than HIDs, because it saves my eyes when drivers put these in their non-projector housings.

[nigelnightmare]

I wondered how long it would take them to make something like these.

14yrs ago I put projector units into my old reflector halogen lights by removing the reflector completely.
Both the MOT & Police questioned it at first, but accepted that it was a road legal modification to enable the use of HID Bulbs and seeing as the car had self levelling suspension plus headlight wipers, no other modifications were required at that time.
Later it was decided that you MUST have headlight auto levelling even if the cars suspension was self levelling!!! Overkill if you ask me.

[matteoo]

Do they last or will they die in a month like every other led I tried to fit? What do you do with dust covers?

[keithletheren]

I did use these and they are great BUT removing them afterwards is impossible as the clip that holds the bulbs in is blocked by the screws so I cannot remove them which I was planning on doing for my next MOT. I’ll have to leave them in now and hope it passes

[buttonmasherxo]

Great video! When can we expect to see an updated look at these with both in?

[rojko]

Can i use it if i have a seperate bulb for long beam? So i would use this only for main bea

[legnums]

It's shining too bright at the near distance. So I'm afraid it's most likely not good in rain (the wet road will lead to a lot of glare) nor in snow.
What are your thoughts about this?
The best part about my car or probably all cars with h4 bulbs is that it shuts down low beam when high beam is engaged. Less light but more visibility. I know this is counterintuitive but I hope you understand what I'm saying