What does that mean? If the monitor only requires 15W to operate, that's a good thing, right? Unless monitors are expected to use less than that? I'm not familiar with reading monitor spec sheets.
to add on to what jsheard said, for this feature to be usable (ie, charge your laptop just by plugging in the monitor), you need this number to be about what your laptop's charger is. At 15W, even a macbook air would run out of power slowly while plugged into this monitor, assuming you don't plug a second cable into your laptop. 65W or 90W is a much more normal value for a feature like this.
