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COMPACT FLUORESCENT BULB
15 Watt bulb
Phosphor Coated Tube Containing Gas
The lamp contains a mixture of argon & mercury vapor. An electric charge to the gas emits UV radiation which is absorbed by the phosphor coating & re-emitted as light. Common phosphors are zinc silicate & magnesium tungstate.
Copyright:© 1993 Richard Megna - Fundamental Photographs
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