Question about Ubiquiti USW-16-POE Gen 2

but only 8 ports POE, 8 ports NOT POE

If the AC-Lite does not yet have active PoE but passive 24v PoE, it does not work with this switch. On the back of the AP it should say something like 802.3 af PoE.

I use AP AC PROs myself, but I see no reason why the Light should not work.