We had one at Purdue for some time and had no problems with it. I have also
had extensive discussions with Coherent regarding this laser and understand
that it has been designed to run "flat out" all the time, rather than at low
current settings like we may be used to with the 90 series. Coherent
maintain that it will operate for considerable periods (thousands of hours)
under these conditions.
Regards
Paul Robinson
Purdue University Cytometry Laboratories