Comment Re:I hope these don't end up as car lighting (Score 3, Informative) 421
There's another piece to this too. There are people in the world that will take a halogen (either projection or non-projection setup) and retrofit an HID setup in it. This causes issues:
1. The non-projection setup has no cut-off - so the light goes everywhere, which is not how good HID setups are implemented.
2. The halogen projection setups - while similar to an HID setup (I have a halogen projection setup in my car) don't have some of the additional pieces to make the HID setup functional. For instance, factory setups for my vehicle have auto-levelling lamp housings to not blind oncoming traffic. Also, the cut-off (metal in the projection path to limit light output out of the top of the lamp) is in a different spot comparing non-HID projection to HID projection.
Ultimately, if you're being blinded by HID lamps - part of it could be caused by incorrect implementation. HID light, even in a correct implementation is harsher - and those sensitive to light are probably more affected; myself included.