Originally Posted by
Seerlah
You would be using an HID kit which is a High Intensity Discharge. The amount of light output set forth by the headlight (or lights in general) has to do with the amount of heat generated from the bulb. The hotter the light, the more sharper it cuts through the darkness. Light is nothing but heat, and when it cools off is when it disperses. 3000k HID is perfect for those looking to upgrade thier fogs.
If it is looks you want, then go with the 4300k. But with that light intensity, it will remove the purpose of the fog lights. The light output would be too great and just reflect off the water molecules in the air (mist in the fog). It would look nice. Just not serve any purpose but that.
Edit: This thread got me now wanting to do this. I think it will be my next mod.
[white lab coat]
Heat may be a byproduct of some light but light is not "nothing but heat". Light is photons which have a duality in that they exhibit the properties of both particles and waves. Compare the yellow flame from a Bic lighter to the bright white of a fluorescent bulb.
The Kelvin (color) temp of a bulb has
absolutely nothing to do with the heat the bulb puts out. Check
this link for information on why light color is referred to as Kelvin temp.
In a nutshell, the standard uses a "black radiator" that is black at 0 Kelvin and changes color as it's temperature is raised. The temp refers to what that "black radiator" would be at that temp.
If you had two halogen bulbs that put out the same color (Kelvin temp) but one was a significantly lower wattage then it would put out significantly less heat even though it was the same color. Temp and color temp are two very different things.
Fogs have two goals.
1) Put light where it is needed. Low and wide.
2) Correct color light. Yellow washes out the blue which is amplified by our brains and causes trouble with night vision and in inclement weather. You want proof? Get yourself a pair of yellow shooter's glasses (dichroic if possible) and wear them at night on a freeway. It will take a little while to get used to all the headlights being pee color but eye strain is reduced and focus is improved. Our eyes pick up blue less than all other colors and our brain amplifies the signal to equalize it. This is why blue leds are so obnoxious compared to red, green, or yellow. Our internal systems get overloaded quickly.
[/white lab coat]
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