This document discusses the components and operation of fluorescent lamps. Fluorescent lamps contain mercury vapor, electrodes, and a phosphor coating that glows when excited by ultraviolet light from the mercury. An electronic ballast powers the lamp by providing a high frequency voltage to ionize the gas and maintain the current through the tube. When electric current is applied, it causes the mercury vapor to produce short-wave ultraviolet light that then causes the phosphor coating on the inside of the lamp to glow.

5. Fluorescent Lamp)
Fluorescent Lamp)

10. Amplifier

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