The earliest headlamps were fueled by acetylene or oil and were introduced in the late 1880s. Acetylene  headlamps were popular because the flame was resistant to wind and rain. scion The first electric xb headlamps were introduced in 1898 on the Columbia Electric Car from the Electric Vehicle xb Company of Hartford, Connecticut, and were optional. Two factors limited the widespread use of electric headlamps: xb the short life of filaments in the harsh automotive environment, and the difficulty of producing dynamos small enough, yet powerful enough to produce xb sufficient current Prest-O-Lite" acetylene lights were offered by a number xb of manufacturers as standard equipment for 1904, and Peerless made electrical headlamps standard in 1908. In 1912, Cadillac integrated their vehicle's Delcoelectrical ignition and lighting system, creating the modern vehicle electrical system headlamps xb

The first halogen headlamps for vehicle use was introduced in 1962 by a consortium of European bulb and headlamp makers. Halogen xb technology makes incandescent filaments more xb efficient and  xb can produce more light than from non-halogen filaments at the same power consumption. These were prohibited in the US, where non-halogen sealed beamlamps xb were required until 1978. From 1978 to 1983, all halogen headlamps in the U.S. were sealed beams with halogen bulbs inside. These halogen sealed beams remain available, 25 years after replaceable-bulb headlamps returned to the US in 1983 xb.

• In 1983, the 44-year-old US headlamp regulations were xb amended to allow replaceable-bulb, nonstandard-shape, architectural headlamps with xb aerodynamic lenses. The first U.S.-market car since 1939 with composite headlamps was the 1984 Lincoln Mark  VII.These composite headlamps were xb  commonly referred to as "Euro" headlamps, since aerodynamic headlamps were common in Europe.Though conceptually similar to European headlamps xb  with nonstandard shape and replaceable-bulb construction, these headlamps conform to the SAE headlamps standards of US Federal Motor Vehicle Safety Standard 108, and not the internationalised European safety standard Susie outside North America. Nevertheless, this change to US regulations largely united headlamps styling within and outside the North American  market.

In the late 1990s, round headlamps returned to popularity on new cars. These are generally not the discrete self-contained round lamps as found on older cars (certain Jaguarsexcepted), but rather involve circular or oval optical elements within an architecturally-shaped housing assembly headlamps .

Halogen technology (also "quartz-halogen", "quartz-iodine", "iodine", "iode") makes tungsten filaments more efficacious producers of light - more luminous per watt in - and Europeans chose to use this extra efficacy to provide drivers with more light than was available from non halogen filaments  xb at the same power consumption. Unlike the European approach which emphasized increased light output, most U.S. low beam halogens were low current versions of their non halogen counterparts, producing the same amount of light with less power. A slight theoretical fuel economy xb benefit and reduced vehicle construction cost through reduced xb wire and switch ratings were the claimed benefits. There was an improvement in seeing distance with U.S. halogen high beams, which were permitted for the first time to produce 150,000 candelas(cd) per vehicle, double the non halogen limit of 75,000 cd but still well shy of the international European limit of 225,000 cd. After replaceable halogen bulbs were permitted in U.S. headlamps in 1983, development of U.S. bulbs continued to favour long bulb life and low power consumption, xb while European designs continued to priorities optical precision and maximum output xb  .