Editing Headlamp (section)

==== Acetylene Gas headlamp ====
{{Main|Carbide lamp|Gas lighting}}
The earliest headlamps, fuelled by combustible gas such as [[acetylene]] [[gas]] or oil, operated from the late 1880s. [[Carbide lamp|Acetylene gas lamps]] were popular in 1900s because the flame is resistant to wind and rain. Thick concave mirrors combined with magnifying lenses projected the '''acetylene flame light'''.<ref>{{cite web | url=https://knowhow.napaonline.com/fire-automotive-lighting-history/ | title=On Fire: Automotive Lighting History » NAPA Know How Blog | date=27 January 2015 }}</ref> A number of car manufacturers offered [[POL valve|Prest-O-Lite]] ''calcium carbide acetylene gas generator cylinder'' with gas feed pipes for lights as standard equipment for 1904 cars.