lamp1 Or SpectralLamp
noun
a device for giving light, either one consisting of an electric bulb together with its holder and
shade or cover, or one burning gas or a liquid fuel and consisting of a
wick or mantle and a glass shade.
"a table
lamp"
an electrical device producing ultraviolet, infrared, or other radiation, used for therapeutic purposes.
LITERARY
a source of spiritual or intellectual inspiration.
"he set out to rescue the
lamp of American literature from the cave of the Philistines"