This type of headlight that uses a trace of bromine or iodine vapor is the standard in auto manufacture
.... 
new use is in the auto- mobile sealed-beam headlight, which uses a bromine- or 
... a saltpeter manufacturer of Paris, obtained a beautiful violet iodine vapor from
... [DOC] [TLE] Uncategorized Archives | HID Lights | Xenon Headlights | LED ... [PAR] Dec 18, 2015 ... You can find these and other brands tested that fit your car by using our ...