headlight comparison (bi xenon - halogen)

[Savant]

In fact, for cars like the new VW Jetta the option has disappeared altogether.

I'm amazed at this.

I have HID lights on my current Accord Euro and they are far better at illuminating the road than the standard halogen lights on my wife's Mazda6

[JonW]

I'm amazed at this.

I have HID lights on my current Accord Euro and they are far better at illuminating the road than the standard halogen lights on my wife's Mazda6

Each to his own I guess, plus its also based on what else you know/drive/driven etc. But I have a Euro on my drive right now and the lights are not that great imho. :/

[DoggieHowser]

I live about 15km out of Brisbane and most of the roads aren't well illuminated. The xenons just give me much more confidence driving at night.

Except when it rains.

[Savant]

Except when it rains.

To be honest I notice the same thing when it rains. Why is that?

[JonW]

Amusingly I washed my windscreen the other day at night, on a back road. The amount of water from the Euro's headlight washers effectively switched the lights off for a few secs (due to water volume not electrical connection etc). An amusing game when youre bored...

[pologti18t]

To be honest I notice the same thing when it rains. Why is that?

The bluer the light source the worse it is in wet conditions.

[Savant]

Amusingly I washed my windscreen the other day at night, on a back road. The amount of water from the Euro's headlight washers effectively switched the lights off for a few secs (due to water volume not electrical connection etc). An amusing game when youre bored...

I'll be sure to give it a try. Living in Pakenham ensures there are a lot of quiet back roads

[JonW]

try it at speed, it freaky LOL

[Savant]

The bluer the light source the worse it is in wet conditions.

So it's a result of the temperature of the light? The "hotter" the light is the more it's effected by wet conditions?

[kamold]

That's why fog lights are very yellow. High colour temperature light reflects back from the water particles and makes visibility worse.
Not sure about the physics of it but likely to do with wavelength and total internal reflection in water particles of a certain size or somesuch...

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