GNMIDI Light license is less expensive than GNMIDI Professional license but contains less operations.
In GNMIDI demo you can toggle between simulating Professional and Light license in the settings menu.

Differences between Professional and Light license:

Operation	Professional (GNMIDI3)	Light (GNMidiLight3)
Batch operations	yes	no
Chords Editor	yes	no
Karaoke Editor	yes	no
Playlists	yes	no
Price	higher	inexpensive
Software versions	GNMIDI 3.1 - 3.99	GNMIDI 3.13 - 3.99
Updates	2 years free updates included	2 years free updates included

Please fill all address fields in your order form that your license can be created!