OneLever
Well-Known Member
- Joined
- June 26, 2010
- Messages
- 772
- Reaction score
- 3
- Year, Model & Trim Level
- 97 Mt. 5.0L AWD
... the stuff further out is reflected back to you on a straighter line, which is going to add to glare. That is why they don't design fogs to put light far out.
I appreciate Hella for publishing their beam patterns. You can see how the intensity of their fog version of the Micro DE dies off at about 25 meters, and the driving version dies off at about 170 meters. Also the differences in beam width.
Hella said:
As a side note of interest the Hella Micro DE Fog light is actually a Halogen H3 bulb stock, and the Driving light is a HID Xenon bulb.
HIDs in properly designed emitters, 4300k = the most usable light, properly designed fogs mounted low for the rare occasion you use them. Sums up everything we need to know right?
Yes that is about it.
For what it is worth, I think HID bulbs are a horrible match for automobiles....LED technology, I believe, is the best technology we could have for automotive lighting, if for no other reason than the way an LED produces light and the directionality of an LEDs light.
In terms of reflector design and optical challenges for HIDs those have obviously been worked out pretty well. As for their efficiency there is much lacking. However the technology which HIDs are based off of, arc lamps, has been around much longer than semiconductor technology. Giving it a better footing to stand on for now.