Originally Posted by frankmar
I was referring to the rectangle halogen housing compared to the round housing. Yes I agree the more light you put the more the glare. But then again my LED put more light than the Halogen in the no Supreme package. So if you go HID or Led you will produce more glare.
Yes I know what you were referring to. I'm simply pointing out that even in projector housings, a certain amount of glare is engineered into the projected beam. The issue is worse with much older reflector housings but consideration should still be made for newer housings.
That being said, do you think the calibration for the projector is the same on the supreme package as it is for the base housings? I'm not so sure.
Frankly the difference might be minimal enough that it won't be an issue between halogen and LED, but a whiter temperature (say, 6000k vs 4300k) LED will still produce more of a "sparkle" effect and will exasperate photosensitivity in older folks. HIDs will definitely create an issue.
I did a bunch of research on this topic back in 2012 and wrote up an article to address this topic as it pertains to HIDs in halogen housings: http://xtremerevolution.net/are-hid-kits-legal-or-safe/
According to AAA, “Drivers middle-aged and older are more sensitive to glare than younger drivers because their eyes take longer to adjust to changing light levels. For example, a 55-year old takes eight times longer to recover from glare than a 16-year-old.”
"Glare is proportional to headlamp brightness, however, so increasing headlamp brightness also increases potential glare for oncoming drivers, particularly on curving two lane roads. This problem is worse for older drivers because of their increased intraocular light scattering, glare sensitivity, and photostress recovery time."
Ultimately, LEDs may not pose as much of an issue as HIDs will, but it still deserves a second thought.