HID is a perfect lighting option for the people who wish to get bright light for their purpose. Whether you need them for your automobile or any other purpose, these are the energy-efficient means of lighting.

2. High Intensity Discharge
(HID) is the most recent
lighting technology in which
light is produced by means
of an electric arch linking
tungsten electrodes present
inside a crystal clear or
semi-transparent fused
quartz or alumina arch tube.

3.  The normal conventional bulbs used to produce enormous
amount of heat due to burning of filament.
 This led to the introduction of HID technology in which
filament was replaced with a gas capsule.
 The light is released from an arch emitted between two
intimately placed electrodes present in the small quartz
glass.
 The biggest advantage that these light forms is that they
produced bright light.

4.  When current passes through the metal vapor light is generated.
 The free electrons collide with an atom in the vapor form
knocking the atom present at the higher orbit for a short time.
 These electrons are displaced and then they return to their
former orbits releasing quantum of radiation.
 The wavelength of emission depends on the energy zone of the
distressed electrons and also on the kind of metal vapor used in
the arch tube.
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5.  Mixture of mercury, argon and
other metal halide salts is
preferred because these metal
halides increase lumen and
augment the light color.
 The gas inside the bulb that
facilitates the arch's initial hit
which warms up and evaporates
the metal salts and forms plasma
that significantly boosts up the
light formed by the arc and
decreases its energy consumption.
 Lights or bulbs working on HID
technology are a kind of arc lamp.

9. Color of the HID based bulbs and lights are more similar to
the color temperature of natural daylight. This can also be defined
using a single term "correlated color temperature“. Classic color
temperatures are 2800K of incandescent, 3000K of halogen, 4100K of
SP41 fluorescent or cool white, and 5000K of daylight-imitating
fluorescent colors.
The lumen per watt (LPW) efficiency is
approximately 8 times that of an incandescent light.
The life of the HID lamp/light is 3 to 5 times as long
as a halogen bulb. In normal usage, an HID bulb lasts further than one
thousand ignitions.

10.  Gymnasiums
 Large Public Areas
 Warehouses
 Movie Theaters
 Football Stadiums
 Polyhouse Farming
 Roadways
 Parking Lots
 Pathways
The basic purpose for the development of this HID technology was to use this
technology when high level of light is required. It is the best option when you are
looking for both the energy and light efficiency. The areas where the HID lamps are
classically used are:
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11.  In DLP or LCD projection televisions, Ultra-High Performance (UHP)
HID lamps are used. Using them for the proper growth of the plants
which actually need high levels of direct sunlight in their natural
habitat is the best example. The reason is that HID lamps, high-
pressure sodium and metal halide are the most common source of
indoor gardening.
 HID lamps are also used in high-performance bicycle headlamps as
well as other lights. These are employed even in flashlights because
they produce an enormous amount of light per unit of energy
consumed. Aircrafts and underwater diving are also the areas where
HID lamps are used.

12.  The relationship between HID technique and automobiles is quite
strong which is difficult to express in words.
 All latest cars launched by any of the existing brands have HID
based light forms especially headlights.
 The principal benefit is that the light produced by the HID
headlights is 300 percent brighter than the normal light forms.
 These are water, weather, vibration, shock and UV Rays protected.
 There is a brilliant shine in these HID based lights.
 HID based bulbs are also available and hence people who cannot
afford buying lights are purchasing HID bulbs.