I need HID glare info/proof.

[joseph]

I'm talking about glare in relation to the K (color of the HID bulb), I'm pretty sure that a 10,000K (blue/purple) bulb will create more glare than a 4300K, even though the 4300K is brighter.
Can you guys confirm this? I have people from another forum where I belong to for my wife's PT cruiser that claim the opposite and I want to prove them wrong, because it's about to turn ugly.
If anyone has pictures of side by side 4300K and 10000K to compare glare and or a scientific chart that proves there is more glare as the bulb K gets higher, I would appreciate it.
I did a web search, but didn't come up with anything very useful.
Thanks.

[Super T]

It's all about perception... blue looks brighter to the human eye than yellow does so some may percieve it as more glare. Truth is, all HID bulbs will "glare" in a standard reflector housing because the reflector isn't designed to handle the HID source. The way it emits light is totally different from a regular filament bulb. That's why there's no such thing as an OEM headlight housing that uses HID's without projectors.

[Hemi Mag]

What T said, some factory housing just work better than others. A prime example of a bad housing is a MK IV golf housing.

AC

[bookeem]

theres a magnum in my town with blue hids in te lows and fogs, and when i say blue i mean damn near literally blue, the only white light to them is the lil bit that does light up the ground, other than that, its all horrible blue glare,when looking at the car coming towards you,and that blue doesnt look brighter IMO at all,

[Cdn_Magnum]

Taking pix of any HID setup with various K of colour wont do you much good either (wont prove anything) digital cameras are horrendous for showing colour renditions especially when talking about direct light. They us colour filters on the solid state pickups. Cameras will vary their aperatures as well depending on how it preceives the light. Take a pix of grill lighting at dusk and it will prove that point. The exposure is extended so the grill lighting always looks brighter than it is.

[Jaak]

There's a number of factors that determine how well the eye sees with various colours. Since we respond to red, green and blue mainly (with the red actually responding through the blue and in to violet to a lessor extent), you're naturally going to have better resolution in your vision with more cones responding, e.g. yellow/orange has both red/green in action and a bluish green has green/blue in action.

There's also the optics of the eye and not all colours bend the same through the lens.

I understand age will also play a factor with blue HIDs causing more glare, but I can't remember details on most of this stuff, never mind that.

But there's no one answer, it's a combination of things.

Here's an experiment for you. Change all the colours on your PC's desktop to various shades of blue, and only blue, and see how well that works for you.

[joseph]

Well, look at this, when I had HID on the stock headlights, pattern stayed the same and the cutoff line was pretty good, I wasn't blinding anyone, and when I looked at it from the front (100feet) it did not blind me or cause glare (4300K).





I bought a 12000K bulb for $45 to do a comparison later (I know, I'm wastig money but I wanna see for myself), I'll put it on my wife's PT cruiser which I'm retrofitting soon with HID (4300K/9006).

[Jaak]

Part of that is where the little bubble of gas in the HID bulb is situated. One of the things I don't like about a lot of the aftermarket HIDs for the Maggie's lights, is it isn't at the same position as the standard bulb's emission, so you're not at the designed light source point.

Even looking at a standard D2R bulb, which has a mask screened on it to reduce glare from reflective surfaces that will shine where you don't want it, the light source isn't far enough forward to be optically correct.

I'd love to drop HIDs in, but I've yet to see a solution I'm happy with.

[desquirrel]

www.danielsternlighting.com

Go to the tech section.

[joseph]

Part of that is where the little bubble of gas in the HID bulb is situated. One of the things I don't like about a lot of the aftermarket HIDs for the Maggie's lights, is it isn't at the same position as the standard bulb's emission, so you're not at the designed light source point.

Even looking at a standard D2R bulb, which has a mask screened on it to reduce glare from reflective surfaces that will shine where you don't want it, the light source isn't far enough forward to be optically correct.

I'd love to drop HIDs in, but I've yet to see a solution I'm happy with.

I ran HID on my stock headlights for many months (post #7) and it was fine, just adjust them a bit lower that the horizon so that you won't blind anybody.
Light pattern is the same, no glare, no blinding, was good, I even looked at them from 100 feet in front of the car and there was no glare, of course if go higher than 4300K you may get glare, but it was good to go.
I also had 4300K on my wife's kia (9005) and the pattern didn't change and it was simply brighter but not blinding.

[joseph]

www.danielsternlighting.com

Go to the tech section.

Good info thanks.
So I was right, the higher the K the more glare it will create.
I'll post pictures when I do my comparison with 4300K on one side and 12000K on the other.

[Jaak]

It would be interesting to compare the differences between a retrofit and one that's positioned correctly for the optics.

I have a donor Magnum light that's broken in an non critical area, that I'm considering doing just that with... To fit in the D2R's I need to remove about a 1/4 inch of material to get alignment.

Who knows, maybe it doesn't make much difference!

[Cdn_Magnum]

Though his site shows an older copyright... I really hope people will read the tech articles in there and not the "HID retrofit kits" are NOT meant for stock housings. This I've always known and agreed with and one of the biggest reasons I will always hesitate to upgrade to HIDs, never mind the voiding of the DOT approval (and subsequencial fines) since the housings were never designed to run HIDs

[joseph]

Though his site shows an older copyright... I really hope people will read the tech articles in there and not the "HID retrofit kits" are NOT meant for stock housings. This I've always known and agreed with and one of the biggest reasons I will always hesitate to upgrade to HIDs, never mind the voiding of the DOT approval (and subsequencial fines) since the housings were never designed to run HIDs

So, who cares, if you keep them white and the pattern doesn't change, all you get is brighter lights.

[Cdn_Magnum]

So, who cares, if you keep them white and the pattern doesn't change, all you get is brighter lights.

Lol... typical (pardon the expression) non-enlightened response. So you have done all the testing i guess... Seems the 'experts' say different. Oh wait you were the one who was asking the questions