RennPartsDirect

Those are the Singer lenses right? I'm not sure our housings have the depth for that kind of recession and the projector and the bulb. It is a sweet looking design though...

Bizman928

I am ordering some extra 9004 bulbs just in case you guys want them. We do not normally stock these bulbs as its more popular to use the H4 Euro Headlights as has been mentioned before in this post.

I expect the 9004 bulbs will push a lot more light out into the H5 lens so you may just overload it - we will have to see what you guys report on here after fitting them.

Just to make sure - you guys want a stock 9004 bulb LED replacement correct?

Bizman928

As mentioned earlier...
I am ordering some extra 9004 bulbs just in case you guys want them. We do not normally stock these bulbs as its more popular to use the H4 Euro Headlights as has been mentioned before in this post.

I expect the 9004 bulbs will push a lot more light out into the H5 lens so you may just overload it - we will have to see what you guys report on here after fitting them.

Just to make sure - you guys want a stock 9004 bulb LED replacement correct?

Bizman928

I am quickly trying to get familiar with the DOT H5 Headlamps and the 9004 bulbs that you guys want as a LED replacement. Can anyone tell me exactly what is printed on the front of your H5 Headlight lenses? Is it "DOT HR HB1"?

The reason for my question is simply for clarity as I don't want to order / supply the incorrect bulbs for your H5 headlights. I have been doing some internet digging on various sites and found that one USA supplier shows a picture of a H4 Headlight vs a H5 Headlight bulb.....and its NOT a 9004 but a 9007! These 2 bulb types are NOT interchangeable and I was shocked at the incorrect photo from this supplier in the USA of 928 parts?

So can someone just confirm that we are talking about 9004 and not 9007 bulbs? Forgive me if I am coming across a little slow here and asking a daft question. But I was very confused at seeing the photo I have attached - which I have removed the company logo out of the centre of the photo - if you zoom in a look at the H5 bulb it is actually a HB5 9007 bulb. Fitting this bulb in a 9004 H5Headlight would give the WRONG light output with the incorrect terminals and cause the driver to blind oncoming traffic.

I have attached a comparison pdf to show & explain why these two bulb types should not get mixed up.

Once I get some feedback / confirmation on the 9004 I will order a batch of bulbs for you guys in the USA market with H5 bulbs.

Many Thanks
Steve

ROG100

That supplier seems to have it wrong (928MS picture) as they show a 9007 bulb which will not work without modification in a H5 housing. You need 9004.

The MAIN difference between the 9004 and 9007 bulbs are

9004: E-W filaments (filaments aligned perpendicular to vehicle travel)
9007: N-S filaments (like the H3 setup. Points in direction of travel)

The 3 leads for the bulbs differ in that the High beam hot feed and ground
need to be swapped. AND 2 new grooves have to be machined into the plastic
of the 9007 bulb base.

jcorenman

I don't want to pour water on anyone's parade, but I think this is a bad idea.

The problem is glare-- the H5 are crappy headlights, and making them brighter does not make them better. The reflectors and lenses don't have a sharp cutoff, which means a good fraction of the light gets sent upwards and forwards. Not a big deal on a divided highway, but on a lonely country road that light goes straight into the eyes of the driver that you earnestly hope will not hit you. Add the "dazzle factor" -- folks tend to drive where they are looking, and they tend to look at bright shiny things. Now add more lumens, and it doesn't get better.

H4's are great. It's unfortunate that they are expensive, but less than a set of tires and last longer. Then go wild, make them as bright as you want because you will be lighting up the road, not the guy coming at you.

Just my $0.0928

Cheers, Jim

FLYVMO

Here is the beam pattern comparison of H4 versus H5 lights, which reinforces what Jim said above, and I agree as well. Putting brighter bulbs in a H5 housing is creating misery for everyone else on the road, unless you re-align your headlights and point them significantly lower than ideal. They create a blob of light, not very focused with lots of glare compared to the H4 lenses. Thanks DOT! Only the best brains at work there it seems...

Cheers!
Carl

outbackgeorgia

Well, I have driven many miles with both, and the H4 is better, but the H5's are adequate, especially for in town driving. One can easily adjust them down a little, esp the drivers side. Roger is correct, I can post photos of my 87S4 H5 bulbs and lens inscription.
Dave

Carl Fausett

Just general information: we have discontinued our HID headlamp conversion kit, and I am now working on a LED headlamp kit for our cars...

Koenig-Specials 928

I'm in.

ROG100

I completely agree that you should never put LED into an H5 lens.

We may have the answer - we make the lens for the 87+ driving/fog light combo - so H4 lens should be the way to go. Pretty easy to remove the H5 lens and replace with a H4 lens. Then we will need the 9004 LED bulbs.

John Veninger

Euro H4 Headlamp really needs to be the starting point. The Euro headlamp is superior to the stock S4 lenses no matter what bulb you put into the S4 lenses

Rob Edwards

The lenses are certainly different, but aren't the reflectors also different in terms of their shape? I don't have an H5 here in this garage to check but the Bosch # for an H4 reflector is 0 301 900 701.

MainePorsche

To make comment here on the S4 H5 lights.
Though the H4's are undoubtedly better, I find if aligned specifically (along with the fogs), I get very reasonable illumination on the darkest of roads here in Northern Maine. At some point in time I am likely to make the change to H4's, but the main impedance for my looking for a different bulb is for energy conservation. My car is very electrically sound, but the incandescents do take up a lot of alternator output. Ideally I can deal with the same illumination but with less electrical energy consumption by the incandescents. Could a LED be available with the same seating geometry in the reflector for the H5 ? There would likely be a market for this, especially in the more well lit urban environs.

bureau13

I would totally be down for this as well, with the caveat that I have the 7" sealed beam headlight, which I believe has similar limitations to the H5. But in an almost entirely urban environment, I'd jump at an LED swap that provided the same light I have now. Of course, I'd prefer an H4 but not for the money I'd have to shell out. That being said, Roger's comment above has my intrigued...did that imply someone is working on an upgrade to existing lights that incorporates an H4 lens without requiring the complete expensive swap? Or is that wishful thinking on my part?