Electric light

light bulblightbulbelectric lightinglamplight bulbselectric lamplampslightingbulbelectric light bulb
An electric light is a device that produces visible light from electric current.wikipedia
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Incandescent light bulb

incandescent lampfilamentincandescent
In technical usage, a replaceable component that produces light from electricity is called a lamp. Lamps are commonly called light bulbs; for example, the incandescent light bulb. The three main categories of electric lights are incandescent lamps, which produce light by a filament heated white-hot by electric current, gas-discharge lamps, which produce light by means of an electric arc through a gas, and LED lamps, which produce light by a flow of electrons across a band gap in a semiconductor. Cornish chemist Humphry Davy developed the first incandescent light in 1802, followed by the first practical electric arc light in 1806.
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated to such a high temperature that it glows with visible light (incandescence).

Light fixture

lampluminairedesk lamp
Lamps usually have a base made of ceramic, metal, glass or plastic, which secures the lamp in the socket of a light fixture.
A light fixture (US English), light fitting (UK English), or luminaire is an electrical device that contains an electric lamp that provides illumination.

Light

visible lightvisiblelight source
An electric light is a device that produces visible light from electric current.
With the development of electric lights and power systems, electric lighting has effectively replaced firelight.

LED lamp

LEDLED lightingLED lights
The three main categories of electric lights are incandescent lamps, which produce light by a filament heated white-hot by electric current, gas-discharge lamps, which produce light by means of an electric arc through a gas, and LED lamps, which produce light by a flow of electrons across a band gap in a semiconductor.
A LED lamp or LED light bulb is an electric light for use in light fixtures that produces light using light-emitting diode (LED).

Arc lamp

arc lightingarc lightcarbon arc lamp
Cornish chemist Humphry Davy developed the first incandescent light in 1802, followed by the first practical electric arc light in 1806.
The carbon arc light, which consists of an arc between carbon electrodes in air, invented by Humphry Davy in the first decade of the 1800s, was the first practical electric light.

Lighting

illuminationartificial lightartificial lighting
It is the most common form of artificial lighting and is essential to modern society, providing interior lighting for buildings and exterior light for evening and nighttime activities.
General lighting (sometimes referred to as ambient light) fills in between the two and is intended for general illumination of an area. Indoors, this would be a basic lamp on a table or floor, or a fixture on the ceiling. Outdoors, general lighting for a parking lot may be as low as 10-20 lux (1-2 footcandles) since pedestrians and motorists already used to the dark will need little light for crossing the area.

Electricity

electricalelectricelectrically
Types of electric lighting include:
Electricity's extraordinary versatility means it can be put to an almost limitless set of applications which include transport, heating, lighting, communications, and computation.

Lantern

lanternslamprailroad lantern
Battery-powered light is often reserved for when and where stationary lights fail, often in the form of flashlights, electric lanterns, and in vehicles.
Examples are glass-pane enclosed street lights, or the housing for the top lamp and lens section of a lighthouse.

Candle

candlestapercandlemaker
Before electric lighting became common in the early 20th century, people used candles, gas lights, oil lamps, and fires.
Before the invention of electric lighting, candles and oil lamps were commonly used for illumination.

Xenon arc lamp

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Xenon arc lamp
A xenon arc lamp is a highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon gas at high pressure.

Light pollution

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Low-pressure sodium lights are favoured for public lighting by astronomers, since the light pollution that they generate can be easily filtered, contrary to broadband or continuous spectra.
Incorrect choice of fixtures or light bulbs, which do not direct light into areas as needed;

Electric arc

arcingarcarc discharge
The three main categories of electric lights are incandescent lamps, which produce light by a filament heated white-hot by electric current, gas-discharge lamps, which produce light by means of an electric arc through a gas, and LED lamps, which produce light by a flow of electrons across a band gap in a semiconductor.
A similar situation may occur when a lightbulb burns out and the fragments of the filament pull an electric arc between the leads inside the bulb, leading to overcurrent that trips the breakers.

Plasma (physics)

plasmaplasma physicsplasmas
Gas-discharge lamp, a light source that generates light by sending an electric discharge through an ionized gas
Nonthermal plasmas on the other hand are non-equilibrium ionized gases, with two temperatures: ions and neutrals stay at a low temperature (sometimes room temperature), whereas electrons are much hotter. (T_e \gg T_n). A kind of common nonthermal plasma is the mercury-vapor gas within a fluorescent lamp, where the "electrons gas" reaches a temperature of 10,000 kelvins while the rest of the gas stays barely above room temperature, so the bulb can even be touched with hands while operating.

Gas-discharge lamp

gas discharge lampdischarge lampdischarge lamps
The three main categories of electric lights are incandescent lamps, which produce light by a filament heated white-hot by electric current, gas-discharge lamps, which produce light by means of an electric arc through a gas, and LED lamps, which produce light by a flow of electrons across a band gap in a semiconductor. Gas-discharge lamp, a light source that generates light by sending an electric discharge through an ionized gas
A high-intensity discharge (HID) lamp is a type of electrical lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina arc tube.

Color temperature

colour temperaturecorrelated color temperatureCCT
Different types of lights have vastly differing efficacies and color of light.
Color temperature may also be a factor when selecting lamps, since each is likely to have a different color temperature.

Edison screw

screw baseE26Edison sockets
Incandescent bulbs and their retrofit replacements are often specified as "A19/A60 E26/E27", a common size for these kind of light bulbs.
Edison screw (ES) is a standard lightbulb socket for electric light bulbs.

A-series light bulb

A19A series bulbA15 light bulb
Incandescent bulbs and their retrofit replacements are often specified as "A19/A60 E26/E27", a common size for these kind of light bulbs.
The A-series light bulb is the "classic" glass light bulb shape that has been the most commonly used type for general lighting service (GLS) applications since the early 20th century.

Stage lighting

lightingtheatrical lightinglights
They remained in use in limited applications that required these properties, such as movie projectors, stage lighting, and searchlights, until after World War II.
The first are the specifics of the lamp, reflector and lens assembly.

Street light

street lightingstreet lampstreet lights
The total amount of artificial light (especially from street light) is sufficient for cities to be easily visible at night from the air, and from space.
Many street light controllers also come with traffic sensors to manage the lux level of the lamp according to the traffic and to save energy by decreasing lux when there is no traffic.

Light tube

light pipesolar tubessun pipes
Light tube
Compared to artificial lights, light tubes have the advantage of providing natural light and of saving energy.

Electric current

currentcurrentselectrical current
An electric light is a device that produces visible light from electric current.

Gas lighting

gas lampgaslightgas light
Before electric lighting became common in the early 20th century, people used candles, gas lights, oil lamps, and fires.

Oil lamp

lampoil lampslamps
Before electric lighting became common in the early 20th century, people used candles, gas lights, oil lamps, and fires.

Fire

firesflamefire damage
Before electric lighting became common in the early 20th century, people used candles, gas lights, oil lamps, and fires.

Humphry Davy

Sir Humphry DavyDavySir Humphry Davy, Bt
Cornish chemist Humphry Davy developed the first incandescent light in 1802, followed by the first practical electric arc light in 1806.