Now the real question, since these are called 'fog' lights can you actually see better in the fog?audtatious wrote:I have them installed in my '08. For mine, I mounted one ballast to the aluminum bumper with tie wraps and the drivers side is screwed to a plastic section. They do much better than the factory halogen bulb but one of mine is not installed right and can blind oncoming traffic so I don't use them at all unless I'm alone on the road. I need to get into the housing and adjust it at some point.
They are aimed the same way as the factory Halogen so there is no reason I can think of why they won't function the same.pfarmer wrote:
Now the real question, since these are called 'fog' lights can you actually see better in the fog?
Perry
Certainly there is. In fog, drizzle, etc. color can drastically influence how well you see. Also too high of brightness levels can actually make things worst in various situations. So what you have here is a much brighter and whiter light. I agree that it may look better and in other conditions may provide better illumination but in foggy types of conditions I would think that a light that leans more towards the other direction of the light spectrum would provide better visibility to the driver.audtatious wrote:
They are aimed the same way as the factory Halogen so there is no reason I can think of why they won't function the same.
My best experience with fog lamps have been with a couple of aftermarket yellows (almost orange) mounted on the bottom of a bumper as close to the pavement as possible.audtatious wrote:From a color temp perspective a yellow would be best. I ran 6000k fogs in my Maxima for 3 years and it was MUCH better than the factory halogen or even aftermarket PIAA Ion Crystals in both fog and mist. My comment above was from simply using HID in fog housings, not color variations with fog.
My understanding of the Ion Crystals is that they don't really remove the blue component so much as scattering it. What few may realize is that in reality color in the case of fog has little to do with penetration. The fog will pretty much equally reflect all wavelengths in this area. What it has to do with is how we see it. Pictures are nearly impossible to use to show this.audtatious wrote:From a color temp perspective a yellow would be best. I ran 6000k fogs in my Maxima for 3 years and it was MUCH better than the factory halogen or even aftermarket PIAA Ion Crystals in both fog and mist. My comment above was from simply using HID in fog housings, not color variations with fog.
That applies to light colored to yellow since in those cases the light is actually white.audtatious wrote:Beam quality has more to do with it than anything as you need a wide beam pattern (70 degrees to 120 degrees) with a sharp, flat cutoff on top. In effect, the usefulness of fog lamps relys on the relationship of the angle between your line of sight and the angle of your car's lights. Yes, the fogs are high in the G but are angled down at a far steeper angle than the standard headlight which helps reduce whiteout glare from fog, mist, etc. They do have an effect but not as well as lower-mounted fogs, IMO.
From a color perspective, sure, 6000k has some negative aspects, but so do yellow bulbs as yellow does not throw out a full spectrum of light either, thus it has issues lighting darker objects. Using bulbs which are colored to the yellow range will also diminish light output by 15% to as much as 50% as well.
In tests I've run accross concerning fog lights and colors it seems only 50% thought that use of the fog lights mattered in bad weather tests and out of those it was again a 50/50 split as to what color.
Good conversation
I agree that most of the time they are simply used for looks, as is the case of changing color temperature from stock for any lights. Blue lights are a known offender as indicated by cop cars initially getting rear ended when first going from red to blue prior to adding red back in.audtatious wrote:Road conditions change constantly and no fog is alike thus while fogs may work well in "X" number of conditions there are far more conditions where it won't help at all. The truth with fogs is that the majority use the lights as driving lights and for looks more than for their possible help in bad weather conditions. I probably fall somewhat in the "driving light" category when it came to the Maxima as I had them on all the time. I've only used the HID fogs in the G once at this point since I do have an alignment issue with one light and it was during heavy rain (and did help at that time) and not a time of fog.
Real world experience over the years tells me that most aftermarket cheap fogs don't do crap. Halogen bulbs in the Maxima didn't do much of anything. HID in the Maxima fogs did a great job as driving lights and a decent job in bad weather conditions. Coated yellow bulbs in the Maxima helped less than the HID's. Halogen fogs in the wifes G and my G don't do crap that I can tell and HID in my G seems to have been useful the one time I used them. I prefer white fogs to yellow fogs. I prefer 6000k to factory 4300k. Finally, the only time I have been high-beamed was by a raised 4x4 which is comical, after 3 years of constant driving in the Maxima.
Maybe I will make the time to fix the one in the G soon and see if it does help or not. It's been a year since the upgrade and I don't use them due to the alignment issue
The glare I am talking about is higher mounted lights aimed low which produce glare to the oncoming driver off of the pavement.audtatious wrote:Kinda depends on how blue (insert other color here) they are. I drove around in my Maxima with 6000k HID headlights and fogs for years without a cop even looking at me funny (that I'm aware of). The major issue with HID upgrades is when people put HID's in non-HID reflector systems which can cause issues with other drivers. From a fog perspective they are usually aimed low enough to not add additional glare.
I remember people using aircraft lights as well.