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120PC Q User Guide
035-00328R rev. 4
16.3 Lamps
Performance and lifetime
1. The lamp output spectra and typical output levels over lifetime are shown below.
2. It is normal for the output to decline over the first several hundred hours of use
and then stabilize at a level ~70% of the initial output for the remainder of the
lamp life. If the lower power regions of the output spectra are being used, it may
be desirable to replace lamps more frequently to maximize signal levels.