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Headlights are mounted on the front of your car, to light the road
ahead of you. They have reflectors and special lenses.
A headlight is usually the sealed beam construction type. This means
that the filament, reflector and lens are fused together into an
airtight unit. Installation and removal are easily accomplished
because of prongs that fit into a wiring socket.
The most popular type of headlight is the halogen type, because it
provides such good illumination. Adjusting screws allow you to aim,
or change the direction of the headlight's beam. If you replace a
halogen bulb, remember that it is filled with pressurized gas
(halogen) and can produce flying fragments if shattered. Wear
protective glasses for changing a halogen lamp, and always throw out
the old one in the protective carton that comes with the new one.
Delay headlights are lights that keep the headlights on for about 30
seconds after you have turned the ignition off. This feature is nice
for finding your way into your house, or in a strange parking lot.
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