Aftermarket HID headlights - 35W or 55W
Discussion
r11co said:
This is an opinion expressed by a private company. It has no authority and bears no relation to the test in practise.
Not doubting your word or owt, but that link was to the official VOSA doc - that happened to turn up on Partco's website. Or do you mean VOSA is a private company?Edited by r11co on Friday 7th February 14:18
r11co said:
Some people really are as dumb as they sound.
Yes, you are clearly an idiot. Just because your headlamps pass a cursory MOT aim test does not make sticking HID bulbs in halogen reflectors correct. If it did, there would be no difference between OEM HID and halogen headlights. There is a difference. That difference is because the optics required by the different light sources are also different. End of discussion.
NomduJour said:
Just because your headlamps pass a cursory MOT test...
It is not a cursory test. It is a precision test using an approved and calibrated device (the list of approved devices I linked to above).Next you'll be telling us the emissions test involves the examiner sniffing the exhaust pipe.
Edited by r11co on Friday 7th February 14:47
V8forweekends said:
The reason for the backtracking was that it was realised after the 'mandatory' guidelines were issued that there were many vehicles that left the factory with line fit HIDs but no self levelling suspension and/or headlamp wash. Examples I can recall from the top of my head were Renault Meganes and a few KIA models but there may be others. These vehicles, for whatever reason, had type approval so someone cocked up somewhere (or more likely someone within VOSA who made up the guidelines presumed something that actually wasn't the case).When the guidelines (not legally enforceable) were translated into the test proper (legally enforceable) that was when the 'must' changed to 'may', so the VOSA pamphlet has no legal weight. It has just been left lying around in the hope that it will scare people into a particular course of action.
The two paragraphs of the last post in the thread linked to above sum things up perfectly.
Edited by r11co on Friday 7th February 14:50
Does the MOT test measure glare if the lights are aligned correctly? Does it measure the changes in illumination at various distances caused by fitting an incorrect light source?
Or does it simply check that the lights are aimed in the right direction and give a roughly acceptable beam pattern?
You might get lucky and end up with something that works of a sort but it will be a fudge. If you are incapable of understanding why it is conceptually incorrect and why the correct optics will be different for the different light sources, then that will probably be good enough for you.
The DfT are in agreement that fitting HIDs into halogen housings is wrong.
Or does it simply check that the lights are aimed in the right direction and give a roughly acceptable beam pattern?
You might get lucky and end up with something that works of a sort but it will be a fudge. If you are incapable of understanding why it is conceptually incorrect and why the correct optics will be different for the different light sources, then that will probably be good enough for you.
The DfT are in agreement that fitting HIDs into halogen housings is wrong.
NomduJour said:
The DfT are in agreement that fitting HIDs into halogen housings is wrong
..yet despite opportunities to do so they cannot/have not enforced anything in law that says so.What does that tell you?
This is just an info sheet using weasily words. Government organisations can say what they like (and do so on a daily basis - it ain't a crime if you only ate 4 of your 5-a-day), but there is due process to be followed before something becomes enforceable. It could of course be that the reason they cannot/do not enact this belief is because they've got it wrong. It does happen y'know.
DfTInfoSheet said:
The UK cannot refuse to register a vehicle with a European type approval.
Very true. The Renaults and KIAs had ECE type approval but didn't have the washers/levellers, thus casting doubt on their requirement.Edited by r11co on Friday 7th February 15:01
NomduJour said:
Fast getting bored by this*, but a final question requiring a yes or no answer - if you took an HID bulb and a halogen bulb and set out to design an effective and efficient reflector housing for each, would those housings be exactly the same?
This point has been answered already. The light source is irrelevant. If the HID bulb presents the light in the same place as the halogen bulb (or LED, or radioactive sock) then the reflectors will be identical - yes.Im seeing your problem now* - you lack the attention span to read the info already presented to you and understand the issues.
r11co said:
The light source is irrelevant. If the HID bulb presents the light in the same place as the halogen bulb (or LED, or radioactive sock) then the reflectors will be identical - yes.
Entirely incorrect, it is not just to do with focal length or location of the light source, it is also concerns the actual characteristics of the light source itself. QED - you are an idiot.
NomduJour said:
Entirely incorrect, it is not just to do with focal length or location of the light source, it is also concerns the actual characteristics of the light source itself.
WTF are you talking about? Define which characteristics you are referring to. Give us something more than just your assertions that it isn't how we say it is.Actually don't bother - you're a clueless wonder who thought the MOT beam aim test was a sight test performed by pointing the car at a wall six feet away and making a educated guess as to whether the pattern was right or not, and then when you were presented with evidence to the contrary shifted the argument.
You are a slippery person who cannot admit when the weight of evidence is against them.
Are you a politician or something?
Edited by r11co on Friday 7th February 17:23
r11co said:
This point has been answered already. The light source is irrelevant. If the HID bulb presents the light in the same place as the halogen bulb (or LED, or radioactive sock) then the reflectors will be identical - yes.
Im seeing your problem now* - you lack the attention span to read the info already presented to you and understand the issues.
Everyone is wrong occasionally, and most will learn from the experience. Other people will simply repeat the same incorrect rubbish over and over again in a futile effort to make it seem correct.Im seeing your problem now* - you lack the attention span to read the info already presented to you and understand the issues.
r11co said:
You are a slippery person who cannot admit when the evidence is against them.
Are you a politician or something?
I know exactly how the MOT tests headlamps. I have explained clearly how the characteristics of the light emitted from an HID arc are very different from the characteristics of the light emitted from a halogen bulb. You have chosen to ignore this.Are you a politician or something?
Edited by r11co on Friday 7th February 17:23
You have also continually ignored the fact that OEM HID headlamps do not share the same reflector design as halogen headlamps. There is an obvious reason for this which you seem unable to grasp.
Do you actually sell HID kits, or are you genuinely unable to understand the concepts?
NomduJour said:
I know exactly how the MOT tests headlamps.
Really? You could have fooled us at 1.20 today.NomduJour said:
I have explained clearly how the characteristics of the light emitted from an HID arc are very different from the characteristics of the light emitted from a halogen bulb.
That's just the thing though - you haven't. You've been asked twice to give it a go though.Edited by r11co on Friday 7th February 21:29
Meltham Terrier said:
You want to buy the brightest you can find and get the ones with the purple colour high kelvin rate are best.
These must be fitted to non projector style headlights and you will never know how popular you are.
You will have lots of people waving to you and asking if you have any coffee beans.
These must be fitted to non projector style headlights and you will never know how popular you are.
You will have lots of people waving to you and asking if you have any coffee beans.
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