F21HLevel 3
INCANDESCENT MANTLES
**Definition:** This place covers:
**Glossary:** - Incandescent: Capable of emitting visible light when heated. - Incandescent mantle: A device comprising a lace-like hood or envelope of thin, porous, refractory material that glows when it is positioned in a flame or otherwise heated by combustion of a distinct combustible material. - Light source: The entity (e.g. mantle) that generates light for a lighting device or apparatus.
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