What is the D'light cool mode and what is its function?

The comfort level in the room is not only a function of temperature. Humidity levels in a room can make you feel uncomfortable. In D'light cool mode , the AC unit measures both temperature and humidity. In humid environments even at a cool temperature, humidity levels can be high, making occupants feel uncomfortable.
 
The D'light cool mode will make an assessment of both temperature and humidity and so even if the desired temperature is reached , the unit will continue to dehumidify until a comfortable index level is reached.