What are the advantages and disadvantages of fluorescence?

They are relatively inexpensive. The light frequency can be adjusted by changing the ratios of fluorescent chemicals. They are more efficient than incandescent lights so it costs less in electricity bills. They generally have much longer life than incandescent lights.

" In the case of fluorescent lamps, the spectral emission depends on the phosphor coating. Thus, fluorescent lamps can be enriched for blue light (wavelengths 400-500 nm) in order to simulate daylight better in comparison to incandescent lamps. Like fluorescent lamps, CFL emit a higher proportion of blue light than incandescent lamps. "

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Disadvantage is that they may be more expensive than incandescent but they are also more efficient The the money is made back in the electric bill relatively quickly. Some contain hazardous amounts of mercury. They may require expensive electronics to run. The ballast may need to be replaced if the lamp starts flickering.