HID 'White' Bulbs...which one is best?

[Onyx60]

Hi All

 

Im sure most of us change our headlights to the whiter and nicer bulbs for our rides Just wondering which of the above brands are the best in terms of whiteness and durabilty? Forget abt LTA compliant...who cares??

[Hitman]

whiter and nicer bulbs for our rides

 

Sorry cant agree with you on that one

[Soya]

but i can agree wif u on yours.

[S2P2]

agree with you. if previous owner had not changed it, i will keep it yellow....better on MY roads yah

[Onyx60]

well..i know wat u mean...even though its whiter...it suffers on the brightness levels..unless its a true HID bi-xenon..

 

but i noticed that lots of cars on our roads still change their bulbs anyway for the 'looks'

 

cheers

[Limws1]

Im sure most of us change our headlights to the whiter and nicer bulbs for our rides

 

No leh, I don't think I'll ever change to white lights. In fact, I'm always blinded by those cars with white lights either from the front or the rear.

[Underpaidsamurai]

Hi All

 

Im sure most of us change our headlights to the whiter and nicer bulbs for our rides Just wondering which of the above brands are the best in terms of whiteness and durabilty? Forget abt LTA compliant...who cares??

 

It doesnt look good on all cars leh.

[Exige]

but it does look good on most cars~

 

It looks good for the driver too, IMO...

especially on darker roads...the white lights illuminate the roads better

[GDIzen]

Sad but true as my Phillips Bluevision had a slight yellowish tinge that seems to 'penetrate' the night thus providing better vision.... BUT I like bluish light better...

[S2P2]

bluish makes it look nicer especially if the car is dark colored.....but it cannot really penetrate

[GDIzen]

Very bad when you go to MY roads as I found even Xenon light on my ex-ride seems to disappear during heavy rain...

[S2P2]

luckily the axxxxxe left my fog light with yellow lights. else i go MY dunno how

[GDIzen]

Yah man....especially you are such a frequent visitor to the north side...Any ORIGINAL Xenon option for 156? I saw a few having them and it looks good, I repeat LOOKS GOOD only...practically speaking, dunno how well it cuts through the sh** on the road!

[S2P2]

it sucks....my previous owner change it liao

[GDIzen]

U mean he took out his Xenon before selling it to you? what a waste!

[Onyx60]

yup...as i pointed out...it looks great IMHO..not practical if u travel to MY coz its actually dimmer then most stock yellowish bulbs coz common sense will tell u that when the glass is tinted blue..it gets darker hence they have to do the 55W = 110W kinda things to 'brighten' the overal illumination...

 

however it looks cools..

[Yttrium]

especially on darker roads...the white lights illuminate the roads better

 

 

 

 

 

 

 

 

 

 

Not if they are "white" (blue tinted light bulbs which most of the aftermarket ones are). Here's why:

 

ARE BLUE HEADLAMP BULBS DANGEROUS?

 

Yes, they are. Here are the nuts and bolts of why blue bulbs are a bad idea:

 

The output spectrum of halogen headlamp bulbs includes *very* little light in the blue frequency range. These blue bulbs have a filter coating on them that allows only the blue frequencies through the filter. Because very little light is produced by a halogen bulb in this range in the first place, it is only this very small amount--a tiny fraction of the total amount of light produced by a halogen bulb filament--that ever reaches the road. This can be confirmed this with a good-quality non-chromosensitive light meter; even a very apparently-bright blue bulb actually throws very little light.

 

Recent tests by the US Department of Transportation's Office of Crash Avoidance Standards found that a standard-wattage 9004-type blue headlamp bulb reduced the road lighting ability of a standard headlamp by 67%, and increased glare for oncoming and preceeding trafic by 33%.

 

This illustrates the difference between the signal image, which is what you see when you look at an illuminated light, and the emitted luminous flux, which is the light that is thrown from the bulb to illuminate surrounding items, either directly or via a reflector and/or lens.

 

Aside from the disadvantage of throwing less light onto the road, another aspect of blue light creates another road hazard when blue headlamp bulbs are used:

 

Blue is the shortest wavelength/highest frequency color of visible light, and, as such, scatters the most readily. This is why the sky is blue rather than any other color from the sun's white output spectrum. And, you may find it interesting to find a dark blue storefront sign or something else that's a dark, pure blue against a dark background in the absence of white light. From any appreciable distance, it's almost impossible for your eyes to see the blue lighted object as a sharply defined form...the edges blur significantly.)

 

SO HOW DOES THIS SCATTERING TENDENCY OF BLUE LIGHT AFFECT HEADLAMP EFFECTIVENESS AND ROAD SAFETY?

 

In two ways:

 

 

[GDIzen]

Actually why the Xenon seems brighter even though the light is bluish is that the output is so much more K than those 'imitation' Xenon blue bulbs...hence if the makers really want to have blue tinted glass, they should increase output to 80-100W at least to maintain the effective lumens output...