EDM 323F Sportive Headlights -- In-depth Look

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2001 BJFP MT
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2016 BMYFS AT
So, I finally imported a set of EDM headlights. No, they're not from England but from Germany. These are among the rarest of all 3rd gen Protege headlights worldwide, aside from the JDM only HID headlights. I don't have the sales numbers of the 2003 EDM P5s which came with these headlights, but my guess is they're in the low thousands to mid thousands at the very most-- which is still quite a bit more than the 2002.5 to 2003.5 JDM Sport20s. Whether it was in Europe or Japan, the sales numbers were fairly low because these were top spec cars with the big "thirsty" engines which most buyers weren't looking for because gas is so much more expensive over there. I believe there are far more RHD versions of these headlights because the UKDM P5s seemed had been more popular 20 years ago than in continental Europe.

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These are the considered the pinnacle of safe to use headlights for American roads, albeit illegally because they don't meet DOT specs. These did come stock on 2003 EDM P5s only (just like in Canada and Japan), but the 2001 and 2002 came with all chrome housings that look just like our USDM P5 ones. The fact that these have the black housings is and that they're from EDM LHD P5s what makes the rare and special. If I didn't live here in the US but in Japan, Australia, UK, etc, it would've been better to use the JDM OEM HID headlights instead. But JDM headlights have the beam pattern that goes the wrong way, which not only dangerously blinds oncoming drivers but makes them dangerously useless for your side of the road where you're driving since there's less light thrown towards the right side of the road.

What also makes the EDM headlights unique, just like the JDM HID headlights are the leveling motors mounted on them. They are controlled by a dial in the dashboard, just like what the early Mazda3s and 6s with HIDs had in the US. Because European regulators are always overly concerned about headlight glare, these have been required in Europe for about 30 years, and even longer in more stringent countries like Germany. Ideally these days, automatic leveling using an electronic controller with a suspension mounted ride height sensor is the best because that effectively eliminates any margin of error. There are aftermarket solutions out there, such as one from Hella, but it's a lot of effort to get it all to work. Where leveling motors are required, the idea is so that if you have your trunk loaded full of beer for example, the sagging rear end would make the headlights shoot light into the air rather than down to the road, which easily blinds others but selfishly light up the road very very far ahead. Late model pickup trucks these days have the leveling switches but ignorant drivers fail to use them when they're carrying loads and brodozers don't even bother reaiming their headlights downwards at all. 🤦

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With all that said, why go through the trouble and expense (they cost as much as a clapped out Protege) getting these headlights instead of just the Canadian P5 ones? Because the lazy soft cut off in the P5 beam pattern sucks. I never liked it since the day the P5 came out and with the same amount of aiming, they never project light as far as these EDM 323F headlights with a far superior cut off and up sweep beam pattern which the regular 01-03 Proteges also have-- a typical European/rest of world headlight beam pattern that lights up the road side and signs well.

And so much do I hate the P5's headlight beam pattern, I'd been advocating for years the superiority of the sedan's headlight beam pattern. But times, technology, and knowledge have changed. I was happy with my stock headlights running the illegal (now discontinued) Osram Hyper H4s, which are 10 watts over normal, for the longest time, until I upgraded my daily beater Corolla's headlights with TWDM ones 6 years ago and installed HIR1 and HIR2 bulbs in them while I was at it. Despite the fact that they're halogen bulbs, I was blown away by its near HID performance (what the HIR bulbs was set out to accomplish in design). I desperately tried to find if there were even better H4 light bulbs out there without causing a thermonuclear melt down in the plastic headlights and wiring. There aren't really. Some slight improvements over the Osram Hypers (hence why they got discontinued), but not much. That leaves me with having to spend a fortune importing the EDM 323F (aka EDM P5) headlights and putting up with hard to replace, often blown H7 light bulbs.

Even before I finally decided to buy these headlights, I was so hesitant in doing so until getting back in touch with lighting guru Daniel Stern in the past couple of years and I was able to make my decision after asking him about the German quasi-legal LED retrofit kits sold by Osram and Philips, since LED light bulbs have much longer lifespans than halogen bulbs. Long life of LED light bulbs makes use/ownership of these headlights pretty much hassle free (long life halogen H7 bulbs still burn out quickly). He was able to advise that Osram and Philips was able to produce a high enough quality LED bulb that was able to barely meet the stringent TUV tests in Germany for some cars. Of those cars, only those are considered legal to use with these LED retrofit kits and both manufacturers publish a list stating which cars are approved for legal use. Most Mazdas fail to make that list unfortunately, so it's either because they failed the tests or Philips or Osram didn't bother getting them tested at all because of the cost/effort involved.

Seeing as I hardly drive my Protege any more and is now essentially a "Sunday car", I figured it was worth taking a risk with the retrofit and at its worse I can just stick to long life halogen bulbs which still outperform brighter H4 bulbs. He recommended me the recently introduced Philips Ultinon Pro6000 over their Pro9000 and Osram's Nightbreaker LEDs because of better light distribution/geometrics. And so, here we now are with these EDM 323F headlights, which I managed to get a couple of years ago (appears to be old stock made in 2007/2008, based on the lot numbers), and me doing something that I always been telling people not to do: don't install HID or LED retrofits because they're unsafe and illegal. I'm officially a hypocrite! 😅

The downside is, there is some potential loss of high beam performance because these uses H1 light bulbs instead of the HB3 light bulbs used in the P5 headlights and JDM HID headlights. With any HB3 headlight, they can easily accept much improved/brighter/cooler HIR1 light bulbs. The saving grace is a well designed reflector that lets a high performance "+120" H1 light bulb make up for any functional losses because they seem (at quick glance, real test still to be done) to outperform my daily beater Corolla's TWDM headlight's high beams which have Vosla HIR1 light bulbs installed.

Finally, the classic 01-03 Protege's night time lighting silhouette is gone with these headlights. They do not use the turn signal bulbs for the parking lights. This is in fact illegal in many countries as the color amber is strictly dedicated to turn signals and side markers only. Instead, a separate parking light bulb is installed in the top corner of the high beam reflectors. The spot for this is actually there on P5 headlights, but is just a flat round spot that hasn't been drilled out. This discrete parking light bulb produces white light and makes the headlight produce a faint glow as if the headlight is being dimmed. In the Anglo speaking countries outside of North America, they're commonly referred to as "city lights", but for all intents and purposes they are still parking lights and are very much legal in the US as DOT regulations allow white parking lights. Some USDM cars do have them (such as some mid 90s Jaguars and Bimmers) rather than amber lights, as a matter of fact. To me, having all white light gives the car a cleaner look when looking at it from the front, and the separate bulbs takes away any ambiguity and visibility issues of the turn signals. No more "dim-bright-dim-bright" that might be hard to determine if the turn signals are flashing in some conditions!

TLDR:
  • I bought EDM LHD headlights from Germany
  • The black housing versions are very rare and expensive.
  • They produce a much better low beam pattern than P5 headlights
  • I wanted much better performance than what the sedan H4 headlights could muster but didn't want to deal with changing the hard to change H7 light bulbs often, so I stuck to the sedan headlights for years
  • German quasi-legal LED retrofit kits came to the market in recent years and this high quality and potentially safe option let me jump the gun to getting these higher performance P5 style EDM headlights and trying those LED retrofit kits despite no legal approvals since LED bulbs have much longer lifespans than halogen bulbs.
  • The P5 high beams are potentially better with the newer HB3 bulb design rather than H1, and HB3 headlights can be upgraded with HIR1 with some slight mods to the bulb
  • They have a separate parking light installed in the corner of the high beam reflectors rather than using the turn signal bulbs.
I know some smart Alec here will reply and ask why I didn't just retrofit projectors. So here's my preemptive answers:
  • I don't like how projectors look aesthetically in halogen headlight housings
  • Most projectors commonly used today produce a DOT beam pattern which I don't like, and good ones that produce an ECE beam pattern are rare and expensive
  • Finding halfway decent P5 headlight housings as donors to retrofit are pretty impossible these days, and you end up having to refurbish the lenses to make them look right, but they don't last long
  • I don't like using the turn signals as the parking light also, and while this can be solved during a retrofit, that doesn't solve the problem of lack of leveling motors which is a great safety feature to have with much brighter headlights
 
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As mentioned in this thread, the hypocrite me installed the quasi-legal in Germany, Philips Ultinon Pro6000 H7 LED bulbs. I could've also installed LED H1s in the high beams, but for the "factory look" just like the JDM Sport20 with the OEM HID headlights, I opted to stick to high performance halogen H1s from Tungsram. The signal bulbs are JDM ones:
  • OEM Mazda branded accessories W5W 6000k LED bulbs from Polarg to complement the LED low beams look
  • true "natural amber" PY21W turn signal bulbs from Koito (the painted version of these are used in our tail lights, and by now they should all be peeling, so replace them like I did!)
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Out of the box using a spacer (easily found on eBay and Amazon) that imitates the stock H7 bulb adapter, these Philips LED bulbs produced a disgusting beam pattern:

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Compared to a very old/worn out H7 halogen light bulb I had sitting around, powered off of a jump box, you can see the big difference and how much cleaner it is:

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Wiggling the bulb around, I was momentarily able to get an acceptable crisp beam pattern from the bulb. So, clearly it was a matter of bulb alignment/geometry that's at the heart of the problem. Philips did say that the base plate of the bulbs can be replaced to suit certain headlight housings. They have many different kinds, but unfortunately, nothing that is suitable for this headlight design common with Mazdas, Hondas, and some Toyotas. Hours of searching, I found some cheap Chinese LED bulb bases designed for Mazdas that appeared to work: https://www.walmart.com/ip/Unique-B...-5-6-MX-5-CX-5-CX-7-RX-8-Pack-of-2/2174689760

I took a chance and found that while the Philips' LED bulb bayonet bases fit in, the bases are too thick for them to allow the bulb to fully go in and twist into place.

So, I had to modify them with a Dremel, then later found out that there's very little plastic in the back side to allow the headlight's spring clip to secure the bulb in place well. I had to solve this by filling that gap so that it's secured properly.

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The bulb now was more secure than the bulls*** stock imitation adapter plates that was used before:

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Now, the bulb position has slightly changed and I made it angled slightly off center (similar to what I found out during the "wiggle test"), which now makes them produce an acceptable beam pattern during my cardboard "bench" test:

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The high beams was a different challenge, as the bulb adapters are now discontinued from Mazda. Thanks to my German friend who helped me get these headlights, he suggested that I tried Honda ones and they worked perfectly. I couldn't use all 4 of the bulb grommet/rubber seals because the LED bulb's fan/heatsink makes it a very tight fit and the fan is also exposed to the elements. So, I opted to just get some rubber caps and cut holes in them to fit the bulb pigtails through. Those cheap Chinese rubber caps are just cheap s***, as expected and tore the moment I tried to stuff the pigtails through. I had to seal them back up with liquid electrical tape (not pictured):

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Interesting discovery I noticed:
The JDM/ADM/EDM black housing "P5" headlights aren't completely blacked out, unlike the Canadian P5 ones. They kept the bezel around the highbeam reflector still chrome. There's no legal/regulatory purpose to this and only aesthetics, according to Daniel Stern. I bet that they decided to do this so that the city lights can light up better and can also be seen from the side of the car because if it's blacked out, the light isn't really reflected well and you can't see it from the side. You can see that the headlight markings are different and the hole for the city light well in this pic here:

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The city light bulb sockets are thankfully the same as the sedan corner light ones, so no importing necessary. But, the turn signal bulb sockets are not available here, so those had to be imported. The next challenge is replacing the entire front wiring harness to make these headlights work properly. Something I didn't want to do, but I have no choice if I want better headlights than stock. More to come...
 
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As someone who DIY'd a retrofit and blackhoused a set of Honda Accord headlights, I can really appreciate the thoughtfulness and the passion you've put into this project. What a difference the modified bulb bases made!
 
Anyone with good condition stock P5 headlights still running halogen bulbs care to post a pic of their headlights shining against a wall from at least 20 feet away? It'll make a nice comparison!
 
Proper wiring harness acquired (2 years ago) from Germany. The transformation / final "stage" of the car begins...
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Pic of the leveling switch (some of you with 3s and 6s might be familiar with it... it looks the same as the one on the 6 but it works a little differently and isn't the same):
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Our 2008 Mazda5 with HID had the level switch. Even with the car loaded down, the headlights never appeared to need adjusting...

I always applauded your dedication to using OEM parts on your cars. When I had the Protege5 headlight swap on my sedan, I drilled out the "city light" hole and inserted the sedan side marker bulb.
 
I'm willing to bet you needed to turn those headlights down with the trunk loaded but you didn't notice... we had a "genwon" 3 with HIDs, and it was quite noticeable the headlights were shooting into the trees... the 5 had the same suspension as the 3 and also quite soft compared to the "genpee" we have now... I found that the dial never needed to be past "1", as "2" was way too low... it doesn't help the USDM "genwon" headlights (and the 5's possibly) beam pattern is pretty lame, so it's hard to make out at a distance any aim changes with load... pull up against a wall from at least 20 feet back, turn on the lights, and start throwing stuff in the back, including the kids... I bet you'll be able to see the changes then

I've driven quite a few NPC JDM rental cars in japan, and they all have the switch, as required by law for almost 20 years now, and with the trunk loaded, they all needed the headlights dialed down, especially since those cars have soft suspensions to begin with

but the fact of the matter is, most people don't know how to use the switch or perceive headlight aim properly (scientific fact that human eyes are poor preceptors to headlight changes, as opposed to instruments), there is now a proposal in the pipeline for UN regulation changes that by the end of the decade, all cars sold that meets UN regulations must have automatic headlight leveling no matter what headlights it has. Current UN regulations require manual leveling switches, and where some "non-aligned" countries who accept but are not signatory to UNECE vehicle regulations and hardly have national regulations, no such manual leveling switches are commonplace. But current UN regulations also require headlights above a certain luminosity to have automatic leveling systems... LED and HID systems are above this threshold... DOT regulations are much more behind the times, requiring only manual leveling systems for HIDs or LEDs, while allowing automatic leveling systems on any type of headlight

anyway, please feel free to share the things you did to your P5 headlights and any beam pattern pics from halogen bulbs you might have here... would be a nice comparison between the two, because a lot of the old stuff has been lost over the years... I don't see that as "thread jacking" lol
 
I tried to find some pictures of the modifications, but there are some gaps in my photo stream from back then. I also never ran them with halogens. I used a plug-n-play HID kit. I liked the brightness, but the beam pattern stunk. The best headlight output I ever had on that car was with the OEM sedan lights and 100w H4 bulbs.
 
HIDs in any halogen headlight is a hot mess... you shouldn't have done that.... the sedan headlight beam pattern was among the best back in the days, but much has improved since then... even the TWDM headlights in my corolla daily with HIR2 bulb conversion has a better beam pattern than the protege sedan headlights, and that's a same era car... now that I have these EDM headlights in my protege, they're better than the sedan headlights that came out, even with the halogen bulbs (you can see that in the pic)... as I had said, I just don't want to deal with the bad short bulb life, so I managed to find acceptable LEDs and converted them so that I can "set it and forget it"
 

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