Minimum and maximum brightness
Minimum and maximum brightness: many lights only have a noticeable change in brightness within a certain range. Hence you can set a minimum and maximum brightness level so that dimming will happen in between those limits. The visualization will still display 0% to 100%.
Fade in time
This is the time that the light is to take to reach the desired brightness from being switched off.
This is how fast the brightness is reached when the button is pressed continuously.