Why HID's don't belong in halogen housings - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community



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Why HID's don't belong in halogen housings

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Old Dec 29, 2010, 09:47 PM   #1
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Why HID's don't belong in halogen housings

I ran into a conversation (on facebook of all places..) about someone who had bought a headlamp HID kit and a fog lamp HID kit for their car. Originally I'd asked if he had the proper housings for these lights and he said no, but they'll be fine because he'll aim them properly.. then I'd asked why he'd bought this HID lighting and he'd said that he'll be able to see better because they're 8000k (which is terribly incorrect) and it looks so much cooler... that was when I'd asked him what he really knew about this kind of automotive lighting..

The conversation hit a brick wall at this point, having a dad that is a lighting expert I thought I would try and tell him what he had told me on the subject and why it was going to look bad etc. but the science tends to bore other enthusiasts when I try. Like many others I can't seem to get his head wrapped around the fact that high intensity discharge lighting needs many things in order to be correct according to our local traffic laws (basically OEM or nothing), and meet DOT specifications. And then I remembered a member here asking if they should do this as well so..

To any of you who put HID's in to your stock halogen housings and are at least wondering or care some bit, here are a couple of simple facts that you need to know to (I will be using a DSM for ex. photos):

a) It doesn't matter if you have your mega bright xenon bulbs "aimed properly", or even aimed lower at the ground OR aimed directly to the ground for that matter, nor does it matter if you "tested" your xenon/hid kit while driving in another car to make sure you're not blinding someone, you will see what you want to see, everyone else will see, well, nothing depending where they're situated from you, cause you'll still be blinding them. The focal points of actual xenon bulbs most certainly will not be designed for the stock reflector housing or will be of poor rebased bulb quality resulting in light scatter, when the focal point is blocked, placed too far forwards or backwards ( talking millimeters or even less), or sitting in a spot where it's not designed to be placed then what tends to happen is excessive and infinite light trajectory paths, see below :
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Notice anything about how this talon is driving parallel by this honda? Which one has HID bulbs in stock halogen housings I wonder? Oh yes.. the talon's "properly aimed" HID lights are beaming at the camera, the honda's halogens are not, both facing the same direction away from the camera. A motorist's iris' are more sensitive then the camera's iris, the camera is only picking up what it can see and regulate to record, but trust me there's way more of those excess beam patterns then what a human eye or a camera can see, and it hurts.. some more then others. It's like looking at the stars, you can see a star somewhere in your peripheral vision, but when you look there that star disappears, its the same idea, it's hidden light. Here is another example picture of this "aimed" kit:
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Supposedly these headlamps and fog lamps have been "aimed properly". How can you aim a light properly if it's not used for it's proper designed application? The simple answer is you can not, that is not how this stuff is engineered. You will see this exact same thing above if he were driving in the fog on the highway, one beam pattern aimed as close as correctly possible down and forwards, and then multiple maybe countless others (depending on POV) pointed straight sideways and even up to the sky. From the same distance with a halogen or a projector you should only be able to see a beam patten angling towards the ground without blowing out the camera, not light aiming everywhere else and then at the ground. If this guy has aimed these properly, how is possible that the camera is photographing blue light ABOVE the car, all the while the POV is above the car? Does this look as cool as you think? Well it looks like ****. Bright ****. Really bright ****.

b) An HID bulb needs to be fit in to a proper projection housing with proper cut off shields (built for D*S or D*R bulbs) or else it will glare/haze out at other drivers and blind them, same as light scatter, it does not matter how you have them aimed, you cannot control the glare. Most would think glare is a reflection of light off of a shiny object or wet ground, but when it comes to HID's or xenon bulbs being installed into unsuitable headlamps, glare is a nasty by-product of an improper set-up because the beam pattern of an arc bulb is sending light EVERYWHERE, the light produced refracts off the lenses, shrouds, chrome and reflectors in the stock halogen housings, even when "properly aimed". One way to tell if you're HID's are glaring (and consequently blinding other motorists) is simply looking at your headlamp. If the whole assembly is blown out with light (like so) then your answer is yes, you are totally glaring, and it is not cool to glare.
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Here is what this looks like at a distance:
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Mmmm attractive, so cool and blue looking.. and a disorganized mess of light that is hard to look at even momentarily.. this owner was courteous enough to aim them lower towards the ground to compensate for using xenon's in halogen housing. Granted all these shots are taken above the height of the talon. Looks like that worked out well.

Here's what that "properly lower aimed" glare and light scatter look like when they're combined facing head on, and even from an elevated POV.
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Would the del sol's head lamps look just like this at the same angle? The answer is a definite no. Why? Because the honda has the correct bulbs in the correct housings that are designed for one another, the beam pattern is going to spread towards more where it has to and less of where it doesn't. The camera may catch a little bit of glare but it's not enough to compare to that awesomely blue brightness..

To summarize, while thinking of another members recent post, yes, only asshats put HID bulbs in stock halogen reflector housings (poll option lol) especially in trucks and SUVS that have headlamps situated higher up. They will blind in ways that you cannot see, you can aim the main beams forwards and down, but that doesn't stop these intense light bulbs from aiming visible or non visible light absolutely everywhere else at the same time. Using an HID kit in an aftermarket projector housing or stock projector housing will still scatter light and glare (unless they are designed for use with D*S or D*R bulbs), but not as bad as a normal halogen reflector housing.

Sure, you've driven with these kits for months, years, or half a decade+ without ever getting pulled over or ticketed. This may be because almost everyone is chasing after that "hid blue look" (which is, in fact a by-product of a legit HID system's light cut off), it's too popular to go 'xenon blue and blind', so there's no point in police trying to get people on this anymore.

There is a reason why certain housings and bulbs are specifically designed for use with one another, there is a reason why cars today with HID equipped lighting are required to have self leveling computer/mechanical systems (2.5 degree drop per X distance < theoretical ex), there is a reason why arc bulbs are a completely different design than halogen bulbs, there is a reason why OEM HID's appear lightly colored in a distance and white when near and it cannot be replicated with a xenon/HID retrofit kit or by any halogen housing.

The first time I'd asked my dad about these cool looking HID kits he said to me:
" ... (all the stuff above but more fluently)... If you do that thing every ricer trash does in this city with those [rhymes with spitty] xenon bulbs, then you can count I'll be ripping them out for you, or smashing that package when it gets here" followed by "you won't fill up your car with diesel next time you go to the pump so why replace your car lighting with something that isn't designed to work with it in the first place just the same?"

Sorry for the book lol.

EDIT: I found the supporting information that I wanted to provide when I originally wrote this up,

Here is a video that basically sums everything up above (although it is UK, it has good information ie. professional laser aiming vs standard halogen bulb aiming etc)
http://www.youtube.com/watch?v=yVuSS...layer_embedded

And here is where the video came from, feel free to read the whole thing, the write up above was written based on this same knowledge that professionals in the industry, including my dad and what he was trying to tell me, would like to share on the subject:
Daniel Stern Lighting - Thinking about "converting" to HID?

Last edited by nerdbotSKRA; Mar 16, 2011 at 11:43 PM. Reason: found the info I would like to have added when I wrote this
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Old Dec 30, 2010, 01:03 AM   #2
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im visiting in cali right now and have seen this alot, it does suck!!! they are bright as crap....if your gonna go HID's, get projectors...PERIOD. or the community will f*** your car up when your asleep. lol
-Flip
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Old Dec 30, 2010, 10:03 AM   #3
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Quote:
Originally Posted by nerdbotSKRA View Post



Does this look as cool as you think? Well it looks like ****. Bright ****. Really bright ****.


Here is what this looks like at a distance:



To summarize, while thinking of another members recent post, yes, only asshats put HID bulbs in stock halogen reflector housings (poll option lol) especially in trucks and SUVS that have headlamps situated higher up.

If you do that thing every ricer trash does in this city with those [rhymes with spitty] xenon bulbs, then you can count I'll be ripping them out for you, or smashing that package when it gets here" followed by "you won't fill up your car with diesel next time you go to the pump so why replace your car lighting with something that isn't designed to work with it in the first place just the same?"
I ****ing hate those lights, and people with those lights. I really can't ****ing stand them. I think they look like **** and to paraphrase everything you stated above, they are abuot the opposite of cool and attractive as anyone or anything can possibly get.

It looks like ****. Bright ****. Really bright ****.
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Old Dec 30, 2010, 10:22 AM   #4
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Originally Posted by nerdbotSKRA View Post
And then I remembered a member here asking if they should do this as well so..
That was me!!

I ended up getting some projector halos off ebay and they've shipped already so should be here soon.
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Old Dec 30, 2010, 01:38 PM   #5
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Sticky!
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Old Dec 30, 2010, 01:50 PM   #6
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Quote:
Originally Posted by raikiri View Post
sticky!
+15647894156198614357485142.

I really wish everybody that has/wants HID's would just get a projector housing. The absolute worst is when your in front of a lifted truck with 8000k bulbs. OH GOD that pi**es me off.

Last edited by evo 9 guy; Dec 30, 2010 at 01:52 PM.
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Old Dec 30, 2010, 02:01 PM   #7
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Quote:
Originally Posted by evo 9 guy View Post
+15647894156198614357485142.

I really wish everybody that has/wants HID's would just get a projector housing. The absolute worst is when your in front of a lifted truck with 8000k bulbs. OH GOD that pi**es me off.

But I love my 3k fogs on my EVO 8, I get compliments all the time
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Old Dec 30, 2010, 02:26 PM   #8
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Originally Posted by MR. EVO MR View Post
But I love my 3k fogs on my EVO 8, I get compliments all the time
fogs are ok, its the halogen housing + HID's that suck.
-Flip

and +123414235981245423 for sticky
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Old Dec 30, 2010, 03:01 PM   #9
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StickyStickySticky. So many questions about this all the time. There's insightful information and puts the conversation to rest. HID's without projection housing is a pain in the *** for everyone on the road, illegal, and really makes your car look worse. Major props to you nerdbot!
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Old Dec 31, 2010, 05:46 PM   #10
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I couldn't agree more. Those lights are simply dangerous to be around. They blind the **** out of your eyes and then you see spots for the next 10 minutes.

I think when you get higher than 4300k they are too bright.
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Old Jan 1, 2011, 07:51 PM   #11
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but they look so cool!
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Old Jan 1, 2011, 09:58 PM   #12
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awesome write up, Thanks alot!
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Old Jan 7, 2011, 06:58 PM   #13
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you guys sounds likes my grandmother... She hates cars with modified exhaust, and she is ready to kill when she hear the straight pipe mustang in her neighborhood.

mmm the sweet sound of a V8 to my ears....

Guys, live and let live. Keep your eyes on the road, not on the incoming hids, and everything will be fine.

That being said,

SUVs with OEM HIDs are as much blinding as ralliart with hids in oem headlight.

Ebay projetor are bad.

Retrofit is the best way to go, but its pricey...
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Old Jan 8, 2011, 06:52 AM   #14
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Originally Posted by lapof View Post
you guys sounds likes my grandmother... She hates cars with modified exhaust, and she is ready to kill when she hear the straight pipe mustang in her neighborhood.

mmm the sweet sound of a V8 to my ears....

Guys, live and let live. Keep your eyes on the road, not on the incoming hids, and everything will be fine.

That being said,

SUVs with OEM HIDs are as much blinding as ralliart with hids in oem headlight.

Ebay projetor are bad.

Retrofit is the best way to go, but its pricey...
OEM HIDs are designed correctly, HIDs in OEM headlights that weren't designed for HIDs are incorrect and gain you nothing. The OP is pointing out that the light is diffused improperly, hence they don't work as designed.

I'm all for modifying your car to your desires, however, doing it correctly is different then doing it all together.
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Old Jan 8, 2011, 07:08 AM   #15
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Quote:
Originally Posted by Flip View Post
im visiting in cali right now and have seen this alot, it does suck!!! they are bright as crap....if your gonna go HID's, get projectors...PERIOD. or the community will f*** your car up when your asleep. lol
-Flip
Please I agree..I know this is on the lancer community site but, please if you buy HID's spend the extra money and buy the projectors so you aren't blinding everyone in front of you. I know there are plenty of companies out there making projecters for all vechical's.

I'm not aiming this just at the lancers with non-HID's but, in AZ all the big a$$ trucks do the same thing and its annoying. Plus they are using the purple's and other colors that are not street legal.

I agree this should be a sticky.

Good article. Your pictures truely show the point of the light "spread" without projectors.
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