﻿Setting the characteristic curve in the value range allows the 256 dimming steps possible on KNX to be adapted to the perception of the human eye. If this parameter is changed, the curve of the characteristic curve is shown in the diagram below. 

The selection of the characteristic curve depends on the connected lamp.

If the dimming behaviour with a linear characteristic is not satisfactory, especially in the lower dimming range, the dimming behaviour can possibly be improved by selecting a different dimming characteristic. The adjustment of the dimming characteristic is related to the adjustment of the lower brightness limit and the maximum brightness.
