Fluorescent lighting is defined as which of the following?

Fluorescent lighting is defined as which of the following?

• A. Incandescent
• B. LED
• C. A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light
• D. High-intensity discharge

Answer: (C)

Fluorescent lighting works with a fluorescent lamp, a low-pressure mercury-vapor gas-discharge device that uses fluorescence to emit visible light. When electricity flows, mercury vapor emits ultraviolet light, which then excites a phosphor coating inside the tube. The phosphor glows, producing visible light. This is different from incandescent lighting, which shines by heating a metal filament; LED lighting, which uses semiconductors to emit light; and high-intensity discharge lighting, which creates light by an electric arc in a gas without relying on the fluorescent phosphor mechanism. So this description precisely defines fluorescent lighting.

Fluorescent lighting works with a fluorescent lamp, a low-pressure mercury-vapor gas-discharge device that uses fluorescence to emit visible light. When electricity flows, mercury vapor emits ultraviolet light, which then excites a phosphor coating inside the tube. The phosphor glows, producing visible light. This is different from incandescent lighting, which shines by heating a metal filament; LED lighting, which uses semiconductors to emit light; and high-intensity discharge lighting, which creates light by an electric arc in a gas without relying on the fluorescent phosphor mechanism. So this description precisely defines fluorescent lighting.