Spectrum of fluourescent bulb in our garage with CCDSPEC

The following graph is a spectrum taken with CCDSPEC today in our garage.


Compare this with a typical fluorescent bulb spectrum from Wikipedia also accessed today (below, https://commons.wikimedia.org/wiki/File:Fluorescent_lighting_spectrum_peaks_labelled.gif):

The peaks are the same as in my spectrum.

Wikipedia explains the different peaks:

Wikipedia licence (see URL above): “Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.”

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