HID Headlights
Headlights are an essential part of
every automobile moving on the road. You can't drive a car without all of your
lights working perfectly well - not only in the dark and when turning, but also
in certain weather conditions such as fog and other situations as well.
Therefore keeping headlights in order is every driver's responsibility, and
they must always remember about it.
A headlight is a lamp (usually a
pair) with a bright light set to a vehicle from the front with a purpose of
lighting the road. With time its performance has significantly improved due to
the tangible difference between the mortality rate on the roads in daylight and
nightlight. According to Wikipedia, the US National Highway Traffic Safety
Administration claims that around 50% of all the deaths caused by the road
accidents take place at night, although only 25% of all the drivers travel when
it's dark.
A xenon headlight is actually an
automotive HID (high-intensity discharge) lamp which is, in fact a metal-halide
lamp containing xenon gas. This type of gas lets the lamp produce very little
of sufficient light once the car starts, and decreases the run-up time. HID
lamps are often called gas-discharge burners and their performance is higher
than the one of tungsten lamps. Moreover, HID headlights can be produced in a
smaller size than halogen headlights due to the extended amounts of light that
HID headlights can provide in relation to halogen lamps. So, in case the xenon
headlight is made in a bigger size, it produces a more powerful beam of light.
In comparison with other headlights,
HID headlamps are very bright -they are 3-5 times brighter than halogen
headlights. HID lights are also much more powerful - 35W against 55W coming
from halogen lights. They endure a more extended period of time (normally
around two thousand hours which is 2 to 4 times of a halogen light's
'lifetime'). In addition, the light produced by HID headlights is very close to
natural day light. The color temperature of HID lights is 4200K whereas
sunlight is 5800K, and halogen - only 3300K.
Technology has made a huge leap
ahead at the end of the last century and already in the 1990s HID lights became
more popular thanks to their availability both in price and on the market. The
demand has been constantly growing, the quality - improving, and the design is
getting better every year.
No comments:
Post a Comment