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incandescent lampclick to hear

Lamp in which a filament heated by an electric current produces light rays.
incandescent lamp lead-in wire inert gas base exhaust tube pinch heat deflecting disc stem button support filament bayonet base screw base bulb

lead-in wire click to hear

Electric conductor carrying the current to the filament.

inert gas click to hear

Gas inserted in the bulb to slow down evaporation of the filament.

base click to hear

Metal end of a lightbulb inserted into a socket to connect it to the electric circuit.

exhaust tube click to hear

Glass tube used to empty the air from the bulb and then to fill it with inert gas before it is sealed.

pinch click to hear

Part in which the lead-in wires are attached.

heat deflecting disc click to hear

Metal disc placed at the entrance of a lamp’s neck to protect the pinch and the base from the heat.

stem click to hear

Button support.

button click to hear

End of the stem; the filament supports are attached to it.

support click to hear

Metal wire holding the filament.

filament click to hear

Very thin metal wire, usually made of tungsten, emitting light rays when an electric current passes through it.

bayonet base click to hear

Base fitted with two short metal pins so that it can be placed in the corresponding socket.

screw base click to hear

Base fitted with a screw pitch so it can be inserted into the corresponding socket.

bulb click to hear

Gas sealed in a glass envelope into which the luminous body of a lamp is inserted.