The sample is illuminated by a 150 W xenon, continuous output, and ozone-free lamp. The excitation monochrometer has an optical range of 220 – 600 nm blazed at 330 nm. The emission monochromator has an optical range of 290 – 850 nm blazed at 500 nm. The slit widths may be continuously adjusted though the software. The FluoroMax 4 has two detectors.