My Hella H9 halogen projectors.
If you can't see with these, you shouldn't be driving.
9005 halogen bulb in 20 year old 9006 factory bmw projector.
Nobody needs HIDs.
Natural sunlight.
Incandescent lamp. Very similar spectrum output to regular halogen bulb.
HID light
http://ledmuseum.home.att.net/spectra.htm
HID bulbs fool the brain into thinking that the light is brighter when in fact the narrow spectrum reduces your ability to see contrast. The worst part about HID bulbs is the glare from a wet road surface to oncoming drivers. I would have no problem if HID headlights were banned in this country.