Hello,
I will check on when I purchased the monitor for you when I get home today if that works.
As for actual hours in use/on I would say since purchase the monitor has been powered up less then 250 hours. I have been doing less and less with my computers/cameras over the last while do to my son's illness as there is little time for anything outside day to day life at present.
Not sure if there is some way via Eizo software to give you more details about usage etc.
thank you