BRAKE LIGHT: Describes the red light at the rear of the vehicle which is activated when the brakes are applied.
DIPPED BEAM: Describes the outboard headlights that can be switched for use for night driving.
DIRECTION INDICATORS: Describes the signal lights that blink on either side of the front of the vehicle and either side of the rear of the vehicle to alert other drivers of a change in direction.
DOUBLE FILAMENT BULB: Describes a light bulb with two filaments, one for the high beam and another for the low beam or with one filament for the stop light and the other for the taillight.
ELLIPSOIDAL HEADLIGHT: Describes a type of headlight with a reflector wider than it is high, and not circular; The ellipsoidal headlight has replaced the parabolic reflector.
FESTOON BULB: Describes a light bulb in the form of a small glass tube with caps at each end providing the contacts.
FREE-FORM (FF) HEADLIGHT: Describes a free-form headlight that uses a free-shape reflector.
FIBRE OPTICS: Describes the transfer of light through glass fibres. rather than just an electrical connection which shows that the indicator light works.
HALOGEN: Describes one of the chemical elements- fluorine, chlorine, bromine, iodine, or astatine.
HALOGEN BULB: Describes a bulb that contains traces of a halogen, such as iodine. A halogen bulb is known to give off a brighter light than a conventional bulb.
HALOGEN HEADLAMPS: Describes a tungsten-halogen bulb used in sealed beam unit or as separate bulb in a composite headlamp.
HEADLAMP DELAY SYSTEM: Describes a headlamp that can be automatically controlled after ignition.
HEADLIGHT BEAM SETTING: Describes a screw which moves the headlight up or down, left or right in order to align the beam of light.
HEADLIGHT DIPPER SWITCH: Describes a switch which switches the headlight from high beam to low beam or vice versa. In most classic vehicles, the switch was located on the floor to the left of the driver's left foot.
HEADLIGHT FLASHER: Describes a process on most modern vehicles, that allows the driver to cause the headlights to flash on and off quickly, through flicking direction indicator lever upwards against spring pressure.
HEADLIGHT ON/OFF DELAY SYSTEM: Describes a dual purpose system that, when activated, it can automatically turn ON the headlights during darkness and OFF during daylight, The system is controlled by a photovoltaic cell on the dashboard.
HEADLIGHT WASH/WIPE: Describes a system that cleans the headlights with a jet of water and a small wiper blade.
HIGH-MOUNTED BRAKE LIGHT: Describes a third brake light usually mounted in the middle of the rear window, although it can be integrated in the rear spoiler on some cars.
HOMOFOCAL HEADLIGHT: Describes a type of headlight with two reflectors, with the inner one having a shorter focal length than the main one.
HORIZONTAL ADJUSTER: Describes a screw used to adjust the lateral aim of a headlight beam.
ILLUMINATED ENTRY SYSTEM: Describes an additional courtesy lighting system used to illuminate the door entry area when left open.
INNER HEADLIGHT: Describes the inner one of twin headlights, usually the high beam option.
LAMP CLUSTER: Describes a cluster of lights behind a glass or plastic cover; in particular rear lights.
LAMP SOCKET: Describes the device which holds a light bulb providing electricity to the bulb.
LAMP UNIT: Describes an all-in-one sealed light unit with both reflector and lens.
MAP LIGHT: Describes an interior light, usually found in the glove box. Used for map reading in the days before GPS.
MULTI-FOCAL HEADLIGHT: Describes a conventional headlight fitted with a multiple-focus parabolic reflector.
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