A headlamp is a lamp connected to the entrance of a automobile to illuminate the road forward. Headlamps are also typically known as headlights, however in the most exact usage, headlamp is the term for the machine itself and headlight is the term for EcoLight smart bulbs the beam of light produced and distributed by the machine. Headlamp efficiency has steadily improved throughout the car age, energy-saving LED bulbs spurred by the great disparity between daytime and nighttime visitors fatalities: the US National Freeway Traffic Safety Administration states that just about half of all traffic-associated fatalities occur at midnight, regardless of only 25% of site visitors travelling throughout darkness. Other vehicles, reminiscent of trains and EcoLight aircraft, are required to have headlamps. Bicycle headlamps are sometimes used on bicycles, and are required in some jurisdictions. They can be powered by a battery or a small generator like a bottle or hub dynamo. The first horseless carriages used carriage lamps, which proved unsuitable for travel at pace.

The earliest lights used candles as the most typical sort of gas. The earliest headlamps, fuelled by combustible gasoline such as acetylene gasoline or oil, operated from the late 1880s. Acetylene fuel lamps have been popular in 1900s as a result of the flame is resistant to wind and rain. Thick concave mirrors mixed with magnifying lenses projected the acetylene flame light. A number of automobile manufacturers offered Prest-O-Lite calcium carbide acetylene fuel generator cylinder with fuel feed pipes for lights as normal tools for 1904 cars. The first electric headlamps have been launched in 1898 on the Columbia Electric Car from the Electric Vehicle Firm of Hartford, EcoLight smart bulbs Connecticut, EcoLight smart bulbs and had been non-compulsory. Two elements limited the widespread use of electric headlamps: the short life of filaments in the tough automotive surroundings, and the problem of producing dynamos small enough, yet highly effective enough to supply sufficient present. Peerless made electric headlamps normal in 1908. A Birmingham, England firm referred to as Pockley Vehicle Electric Lighting Syndicate marketed the world's first electric car-lights as a complete set in 1908, which consisted of headlamps, sidelamps, and tail lights that have been powered by an eight-volt battery.

In 1912 Cadillac built-in their automobile's Delco electrical ignition and lighting system, forming the fashionable car electrical system. The Information Lamp Company introduced "dipping" (low-beam) headlamps in 1915, however the 1917 Cadillac system allowed the light to be dipped utilizing a lever inside the car rather than requiring the driver to stop and EcoLight home lighting get out. The 1924 Bilux bulb was the first fashionable unit, having the light for EcoLight reviews both low (dipped) and excessive (foremost) beams of a headlamp emitting from a single bulb. The same design was launched in 1925 by Information Lamp referred to as the "Duplo". In 1927 the foot-operated dimmer swap or dip swap was introduced and turned standard for a lot of the century. 1933-1934 Packards featured tri-beam headlamps, the bulbs having three filaments. From highest to lowest, the beams had been called "country passing", "nation driving" and "city driving". The 1934 Nash also used a 3-beam system, although in this case with EcoLight smart bulbs of the standard two-filament sort, and EcoLight smart bulbs the intermediate beam mixed low beam on the driver's side with high beam on the passenger's side, in order to maximise the view of the roadside while minimizing glare towards oncoming site visitors.

1952 "Autronic Eye" system automated the number of high and low beams. Directional lighting, using a swap and electromagnetically shifted reflector to illuminate the curbside only, was launched in the uncommon, one-year-only 1935 Tatra. Steering-linked lighting was featured on the 1947 Tucker Torpedo's heart-mounted headlight and was later popularized by the Citroën DS. This made it potential to show the light in the course of journey when the steering wheel turned. The standardized 7-inch (178 mm) spherical sealed-beam headlamp, one per facet, was required for EcoLight products all autos offered within the United States from 1940, nearly freezing usable lighting technology in place until the 1970s for Individuals. In 1957 the law changed to allow smaller 5.75-inch (146 mm) spherical sealed beams, two per side of the automobile, and in 1974 rectangular sealed beams were permitted as properly. Britain, Australia, and EcoLight smart bulbs another Commonwealth countries, as well as Japan and Sweden, additionally made intensive use of 7-inch sealed beams, although they were not mandated as they were within the United States.