Life timer info

Hi everyone,

I am willing to buy an used dell Ultrasharp monitor, and I found a 2407wfp in apparently good conditions. The problem is that its life timer shows 51.100 hours of use. This would mean 16 and a half hours of usage a day, and I frankly doubt this screen was used that much.

Does the life timer take into account the standby time, too?

Its brightness was set at 50%, and the monitor was as bright and as colorful as a new, professional EIZO next to it.

Thanks for your help!